Property value estimation system, property evaluation estimation method, program, and property operation support system

Abstract

To provide a system, method, and program for estimating an appropriate property value based on the quality value of an actual property.SOLUTION: A communication unit (10) receives maintenance data related to the maintenance of an object and property data related to the object from a communication terminal device (200 and 300) and stores them in databases (21 and 22). The maintenance data includes actual information on maintenance work for the building and the owned equipment. The property data includes specification information of the building and owned equipment. A processor calculates the current quality values of the building and the possessed equipment based on the time transition of the quality values of the building and the owned equipment estimated from the specification information. The processor calculates a correction value of the quality value of the building and the owned equipment recovered by the maintenance work based on the actual result information of the maintenance work. The processor calculates the quality evaluation value of the object at the current time by correcting the quality value of the building and the owned equipment at the current time using the correction value.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present disclosure relates to a system, method, and program for estimating the value of properties such as buildings and facilities, as well as a property operation support system.

Background Art

[0002] For example, Japanese Patent Application Laid-Open No. 2003-44568 (Patent Document 1) discloses a building evaluation system for evaluating the performance of a building. This building evaluation system includes a server computer and a user computer connected to the server computer via a communication network. The server computer calculates the current value of a house from evaluation information of the house based on the housing performance display system, construction cost, years since construction, standard service life, information on maintenance and management, and information on location conditions. Then, the server computer transmits the evaluation information of the house and the current value of the house to the user computer via the communication network.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the above Patent Document 1, as information on the maintenance and management of a house, information on the accumulation of costs related to the management of a building is used, and a predetermined index is defined corresponding to whether or not it has been accumulated.

[0005] On the one hand, building owners usually incur costs for maintenance work on the building structure and the equipment they own in order to suppress the deterioration of the quality of the building structure and the equipment over time. In a method of calculating the current value of a building based on whether or not costs related to building management have been accumulated, since the actual quality of the building is not reflected in the current value, there is concern that it will be disadvantageous for owners who maintain the quality at the time of new construction by incurring a large amount of costs.

[0006] The present disclosure has been made to solve such problems, and an object of the present disclosure is to provide a system, a method, and a program capable of estimating an appropriate property value based on the quality value of an actual property.

Means for Solving the Problems

[0007] A property value estimation system according to an embodiment estimates the value of a property consisting of a building and equipment owned. The property value estimation system includes a communication unit, a database, a processor, and a memory. The communication unit receives maintenance data related to the maintenance of the property and property data related to the property from a communication terminal device. The database stores the maintenance data and the property data. The memory stores a program executed by the processor. The maintenance data includes performance information of maintenance work on the building and the equipment owned. The property data includes specification information of the building and the equipment owned. The processor calculates the current quality value of the building and the equipment owned based on the time transition of the quality value of the building and the equipment owned estimated from the specification information according to the program. The processor calculates a correction value for the quality value of the building and the equipment owned restored by the maintenance work based on the performance information of the maintenance work. The processor calculates the current quality evaluation value of the property by correcting the current quality value of the building and the equipment owned using the correction value.

[0008] A property value estimation system according to an embodiment is a property value estimation method for estimating the value of a property consisting of a building and owned facilities, comprising steps in which a processor receives maintenance data regarding the maintenance of the property and property data regarding the property, and stores the maintenance data and the property data in a database. The maintenance data includes performance information of maintenance work on the building and the owned facilities. The property data includes specification information of the building and the owned facilities. The property value estimation method further comprises steps in which the processor calculates the current quality value of the building and the owned facilities based on the time change of the quality value of the building and the owned facilities estimated from the specification information, calculates a correction value of the quality value of the building and the owned facilities restored by the maintenance work based on the performance information of the maintenance work, and calculates the current quality evaluation value of the property by correcting the current quality value of the building and the owned facilities using the correction value.

Advantages of the Invention

[0009] According to the present disclosure, it is possible to provide a system, a method, and a program for estimating an appropriate property value based on the quality value of an actual property.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Figure 16

Figure 17

Figure 18

Figure 19

Figure 20

Figure 21

Figure 22

Embodiments for Carrying Out the Invention

[0011] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and their description will not be repeated.

[0012] [Embodiment 1] [Application Example of Real Estate Value Estimation System] FIG. 1 is a diagram for explaining an application example of a real estate value estimation system according to Embodiment 1. The real estate value estimation system 100 according to Embodiment 1 is a system for evaluating the value of a real estate as an asset. The "real estate" to be evaluated by this system includes movable and immovable properties that are the subject of contracts and the like. In the following description, it is assumed that the real estate value estimation system 100 evaluates the value of an office building and its owned facilities as the "real estate".

[0013] As shown in FIG. 1, the real estate value estimation system 100 according to Embodiment 1 exchanges various signals and data with communication terminal devices 200, 300, and 400 via a communication network NW such as the Internet. The communication terminal devices 200, 300, and 400 are composed of terminal devices such as a PC (Personal Computer) or a PDA (Personal Digital Assistant) that can be connected to the communication network NW. The installation location of the communication terminal device 200 is not particularly limited. The communication terminal device 200 may be a mobile terminal (such as a smartphone or a tablet).

[0014] The communication terminal device 200 can be operated by a management company that manages the real estate or a maintenance company that undertakes the maintenance of the real estate. The communication terminal device 200 mainly manages data related to the maintenance of the real estate (hereinafter also referred to as "maintenance data"). The maintenance data includes information on the results of maintenance work (such as inspections, repairs, and component replacements) for the building and its owned facilities. For example, the maintenance data includes information on the implementation date, work content, and work results of the maintenance work for the building and each facility. The communication terminal device 200 transmits the maintenance data to the real estate value estimation system 100 via the communication network NW.

[0015] The communication terminal device 300 can be operated by an operator who designs, constructs, or manufactures a property. Such operators include construction companies that design and construct buildings, facility designers who design each facility, facility manufacturers who manufacture each facility, and real estate companies that develop or construct buildings for sale or lease, etc.

[0016] The communication terminal device 300 mainly manages data related to a property (hereinafter also referred to as "property data"). The communication terminal device 300 transmits the property data to the property value estimation system 100 via the communication network NW. The property data includes building information related to a building (mainly the building structure), facility information related to the facilities owned by the building, and regional information related to the location of the building, etc.

[0017] The building information includes information such as the type of the building, the structure of the building structure, the construction date of the building, and the site area. The structure is a structure that structurally supports the entire building. The structures of the building structure include steel frame structure, reinforced concrete structure, steel frame reinforced concrete structure, wooden structure, etc. The building information is managed, for example, by a construction company or a real estate company.

[0018] The facility information includes information such as the type, model, and specifications of the facilities owned by the building, the layout drawings showing the location of each facility, and the wiring diagrams showing the wiring of each facility. The facility information is managed, for example, by a facility designer or a facility manufacturer.

[0019] The regional information includes information related to the land price of the location of the building and information related to the surrounding area of the building. The regional information is managed, for example, by a real estate company.

[0020] The communication terminal device 400 can be operated by a user who uses the property value estimation system 100. The user is typically a property owner who owns the property. The property owner usually concludes a maintenance contract with a management company or a maintenance company.

[0021] The property value estimation system 100 estimates the value of a property using maintenance data and property data collected from the communication terminal devices 200 and 300 respectively. The property value estimation system 100 will be described in detail later.

[0022] The communication terminal device 400 receives information regarding the property value estimated by the property value estimation system 100 via the communication network NW. The communication terminal device 400 notifies the user of the value of the property based on the received information.

[0023] <Hardware Configuration of the Property Value Estimation System> FIG. 2 is a diagram showing an example of the hardware configuration of the property value estimation system 100. As shown in FIG. 2, the property value estimation system 100 is realized by a device having a function of communicating with external devices including the communication terminal devices 200, 300, and 400 and an arithmetic function. The property value estimation system 100 can be realized by, for example, a general server.

[0024] The property value estimation system 100 includes a CPU (Central Processing Unit) 101, a RAM (Random Access Memory) 102, a ROM (Read Only Memory) 103, an I / F (Interface) device 104, and a storage device 105. The CPU 101, the RAM 102, the ROM 103, the I / F device 104, and the storage device 105 exchange various data through the communication bus 106.

[0025] The CPU 101 expands and executes the program stored in the ROM 103 in the RAM 102. The program stored in the ROM 103 describes the processes executed by the property value estimation system 100. Note that in FIG. 2, a configuration in which the CPU 101 is singular is illustrated, but the property value estimation system 100 may have a configuration with a plurality of CPUs.

[0026] The I / F device 104 is an input / output device for exchanging signals and data with external devices including the communication terminal devices 200, 300, and 400. The I / F device 104 receives maintenance data from the communication terminal device 200. Also, the I / F device 104 receives property data from the communication terminal device 300. The I / F device 104 transmits information regarding the value of the property estimated by the CPU 101 to the communication terminal device 400.

[0027] The storage device 105 is a storage for storing various kinds of information, and stores various kinds of information for estimating the value of the property. The various kinds of information include the above-described maintenance data and property data, as well as a quality value table and a correction value table used for calculating the quality evaluation value of the property.

[0028] <Functional Configuration of Property Value Estimation System> FIG. 3 is a block diagram showing the functional configuration of the property value estimation system 100 according to Embodiment 1. As shown in FIG. 3, the property value estimation system 100 includes a communication unit 10, a storage unit 20, a quality evaluation unit 30, and a value estimation unit 40. Each of these functions is realized, for example, when the CPU 101 executes a program stored in the ROM 103. Note that some or all of these functions may be configured to be realized by hardware.

[0029] The communication unit 10 communicates with the communication terminal devices 200, 300, and 400. Specifically, the communication unit 10 receives maintenance data from the communication terminal device 200 at predetermined intervals. As described above, the maintenance data includes information regarding the results of maintenance work on the building and the owned facilities.

[0030] In addition, the communication unit 10 receives property data from the communication terminal device 300. As described above, the property data includes building information, facility information, and regional information. In a certain aspect, the communication unit 10 receives property data from the communication terminal device 300 when the operation of the office building starts (for example, when the office building is newly constructed), when the office building is renovated, etc. Regarding the regional information, it may be received at a predetermined cycle in consideration of fluctuations in land prices and changes in the surrounding area. The communication unit 10 transfers the received maintenance data and property data to the storage unit 20.

[0031] The storage unit 20 stores signals and data exchanged between the property value estimation system 100 and external devices. The storage unit 20 includes a maintenance DB 21 and a property DB 22. Maintenance data is stored in the maintenance DB 21. Property data is stored in the property DB 22. Each of these DBs is stored in the storage device 105 (Figure 2) of the property value estimation system 100.

[0032] The quality evaluation unit 30 calculates the current quality evaluation value Q of the property using the maintenance data stored in the maintenance DB 21 and the property data stored in the property DB 22. The method for calculating the quality evaluation value Q by the quality evaluation unit 30 will be described in detail later.

[0033] The value estimation unit 40 estimates the value of the property using the quality evaluation value Q calculated by the quality evaluation unit 30 and the property data. Specifically, the value estimation unit 40 calculates the property value P based on the current quality evaluation value Q of the property and the current land price information, etc. The method for calculating the property value P by the value estimation unit 40 will be described in detail later.

[0034] The communication unit 10 transmits the property value P calculated by the value estimation unit 40 to the communication terminal device 400. The communication terminal device 400 notifies the user of the received property value P.

[0035] <Operation of the Property Value Estimation System> FIG. 4 is a flowchart showing an example of the processing executed by the property value estimation system 100 according to Embodiment 1. A series of processes shown in this flowchart are executed when predetermined conditions are satisfied (for example, when a request is received from a user). Each step is realized by software processing by the CPU 101, but may also be realized by hardware (electric circuit) arranged in the property value estimation system 100. Hereinafter, steps are abbreviated as "S".

[0036] (Calculation process of quality evaluation value Q) As shown in FIG. 4, the quality evaluation unit 30 first obtains information regarding the specifications of the property (hereinafter, also referred to as "property specification information") from the property data stored in the property DB 22 by S10. FIG. 5 is a diagram showing an example of the property specification information.

[0037] The property specification information is formed by collecting information necessary for estimating the value of the property from the building information, facility information, and regional information included in the property data. FIG. 5 shows an example of the property specification information of an office building.

[0038] In the example of FIG. 5, the property specification information includes "office" which is the type of the building, "reinforced concrete structure" which is the structure of the building's frame, "August 2013" which is the construction date of the building, the site area of the building "8,000.0 m 2 ", and information on the location of the building. The property specification information further includes the asset value of the property at the time of new construction "1 trillion yen", the value ratio of the building's frame to the owned facilities "80:20", and information regarding the types and models of the owned facilities.

[0039] Next, the quality evaluation unit 30 calculates the current quality value of the property based on the property specification information obtained in S10 according to S20 in FIG. 4. In S20, the current quality value of the building and the current quality value of the owned facilities are calculated. A quality value table is used for calculating the quality value. The "quality value table" is an estimation of the time transition of the quality value starting from the time of new construction for each type of building and facility. FIG. 6 is a diagram showing a first example of the quality value table. FIG. 6(A) is an example of the quality value table of the building, and FIG. 6(B) is an example of the quality value table of an air conditioner which is one of the facilities.

[0040] As shown in FIG. 6(A), in the quality value table of the building, the time transition of the quality value is shown for each type of building. The quality value of the building is a quantification of the quality (strength, density, etc.) of the building structure, with 100% (corresponding to the upper limit value) at the time of new construction. The quality value of the building gradually decreases as the number of years of use of the building increases. Note that the rate at which the quality value of the building decreases varies depending on the structure of the building body.

[0041] The quality value table of the building can be generated in advance by a construction company or the like using an arbitrary method and stored in the storage device 105 of the property value estimation system 100. For example, the construction company can generate a quality value table using its own method based on past defect records and the like, and store the generated quality value table in the storage device 105 via the communication unit 10.

[0042] As shown in FIG. 6(B), in the quality value table of the facility, the time transition of the quality value is shown for each type of facility. The quality value of the facility is a quantification of the quality (performance, condition, etc.) of the facility, with 100% (corresponding to the upper limit value) at the time of installation in the building. The quality value of the facility gradually decreases as the number of years of use of the facility increases. Note that the rate at which the quality value of the facility decreases varies depending on the model.

[0043] The quality value table of the facility can be generated in advance by the facility designer or facility manufacturer using any method and stored in the storage device 105. For example, the facility designer or facility manufacturer can generate the quality value table using their own method based on past failure records, etc., and store the generated quality value table in the storage device 105 via the communication unit 10.

[0044] In addition, in FIG. 6, the configuration of generating the quality value table for each type of building and facility has been described, but it may also be configured to generate the quality value table for each constituent member of the building structure and each component part of the facility.

[0045] In S20 of FIG. 4, the quality evaluation unit 30 refers to the quality value table shown in FIG. 6 and obtains information regarding the time transition of the quality values of the building and the owned facilities based on the property specification information acquired in S10. Then, the quality evaluation unit 30 calculates the quality values of the building and the owned facilities at the current time from the acquired information.

[0046] Specifically, when it is determined from the property specification information shown in FIG. 5 that the type of the building is "office" and the structure of the building body is "reinforced concrete structure", the quality evaluation unit 30 refers to the first row of the quality value table shown in FIG. 6(A) to obtain information regarding the time transition of the quality value of the building. Then, the quality evaluation unit 30 estimates the quality value of the building at the current time from the acquired information. For example, when the current time corresponds to 10 years after the new construction, the quality evaluation unit 30 calculates that the quality value of the building at the current time is "70%" from the first row of the quality value table.

[0047] In addition, when it is determined from the property specification information shown in FIG. 5 that the owned facilities include an air conditioner (model "AE-200"), the quality evaluation unit 30 refers to the first row of the quality value table shown in FIG. 6(B) to obtain information regarding the temporal change of the quality value of the air conditioner. Then, the quality evaluation unit 30 calculates the quality value of the air conditioner at the current time from the obtained information. For example, when the current time corresponds to 10 years after the new construction, the quality evaluation unit 30 estimates that the quality value of the air conditioner at the current time is "65%" from the first row of the quality value table. In this way, the quality evaluation unit 30 also calculates the quality value at the current time for other owned facilities included in the property specification information by referring to the corresponding quality value table.

[0048] Next, the quality evaluation unit 30 calculates a correction value for correcting the quality values of the building and the owned facilities calculated in S20 based on the maintenance data stored in the maintenance DB 21 by S30 in FIG. 4. A correction value table is used for calculating this correction value.

[0049] The "correction value table" represents the quality value restored by one maintenance operation for each type of building and equipment. As shown in FIG. 6, the quality values of both the building and the equipment gradually decrease according to the number of years of use, but the quality can be restored (i.e., the decrease in the quality value can be suppressed) by performing maintenance work.

[0050] FIG. 7 is a diagram showing a first example of the correction value table. As shown in FIG. 7, correction values are set for the building structure and each equipment. The correction value quantifies how much the quality value is restored (how much the decrease in the quality value is suppressed) for the maintenance target by one maintenance operation. In the example of FIG. 7, it shows that the quality value of the building structure is restored by 15% by one maintenance operation.

[0051] Note that in FIG. 7, correction values for the entire structure and the entire equipment are set, but correction values may be set for each component of the structure and each component of the equipment. Also, correction values may be set for each content of the maintenance work.

[0052] In S30, the quality evaluation unit 30 refers to the correction value table shown in FIG. 7, and calculates the correction value of the quality value of the building and the owned facilities based on the performance information of the maintenance work for the building and the owned facilities included in the maintenance data.

[0053] FIG. 8 is a diagram showing an example of the maintenance data of the property. As shown in FIG. 8, the maintenance data includes the performance information of the maintenance work carried out from the time of new construction (August 2013) to the current time (October 2023). For example, the maintenance data shows that one maintenance work was carried out on the building structure in July 2023. In this case, the quality evaluation unit 30 multiplies the correction value of one maintenance work on the structure, "15%", by the number of maintenance works, "1 time" (15% × 1), and calculates the correction value for the current quality value of the structure as "15%".

[0054] Also, the maintenance data shows that a total of 10 maintenance works have been carried out on the air conditioner every year since new construction. In this case, the quality evaluation unit 30 multiplies the correction value of one maintenance work on the air conditioner, "0.5%", by the number of maintenance works, "10 times" (0.5% × 10), and calculates the correction value for the current quality value of the air conditioner as "5%".

[0055] For other owned facilities such as security gates and elevators, the quality evaluation unit 30 also refers to the correction value table and calculates the correction value of the quality value based on the performance information of the maintenance work.

[0056] When the correction values of each of the building and the owned facilities are calculated in this way, the quality evaluation unit 30 calculates the current quality evaluation value Q of the building and the owned facilities based on the current quality values of the building and the owned facilities calculated in S20 and the correction values of the building and the owned facilities calculated in S30 according to S40 in FIG. 4. In the following description, the quality evaluation value of the building is denoted as Qs, and the quality evaluation value of the owned facilities is denoted as Qf.

[0057] FIG. 9 is a diagram for explaining the calculation process of the quality evaluation value Q (S40 in FIG. 4). FIG. 9(A) shows the time transition of the quality values of the building and the owned facilities acquired in S20. FIG. 9(A) is obtained from the quality value table shown in FIG. 6, and shows the time transition of the quality values of the building and the owned facilities from the time of new construction (August 2013) to the current time (October 2023).

[0058] FIG. 9(B) shows the time transition of the quality evaluation value Q of the building and the owned facilities calculated in S40. The quality evaluation value Qs of the building is obtained by adding the correction value of the building calculated in S30 to the quality value of the building. As described above, when the correction value for the quality value of the building structure at the current time (October 2023) is "15%", the quality evaluation value Qs of the building is 70 + 15 = 85% by adding the correction value "15%" to the quality value "70%" of the current building structure.

[0059] Note that since no maintenance work has been carried out on the building structure for 9 years since new construction, the correction value for this period is 0. For example, the quality evaluation value Q of the building in 2020, which is 7 years after new construction, is the same as the quality value of the building in the same year.

[0060] The quality evaluation value Qf of the owned facilities is obtained by adding the correction value of the owned facilities calculated in S30 to the quality value of the owned facilities. As described above, when the correction value for the quality value of the air conditioner at the current time (October 2023) is "5%", the quality evaluation value Qf of the air conditioner is 65 + 5 = 70% by adding the correction value "5%" to the quality value "65%" of the current air conditioner.

[0061] Note that since maintenance work on the air conditioner has been carried out every year since new construction, the quality evaluation value Qf of the air conditioner in each year is obtained by adding the correction value (0.5 × the number of maintenance operations) to the quality value of the air conditioner in each year. For example, the quality evaluation value Q of the air conditioner in 2021, which is 8 years after new construction, is the value "74%", which is obtained by adding the correction value "4%" (= 0.5% × 8) based on the maintenance record of the air conditioner up to the same year to the quality value "70%" in the same year.

[0062] The quality evaluation value Qf of the existing equipment is obtained by summing the quality evaluation values Qf1, Qf2, ··· calculated for each piece of equipment (Qf = Qf1 + Qf2 + ···). Also, the quality evaluation value Q of the property is obtained by adding the quality evaluation value Qs of the building and the quality evaluation value Qf of the existing equipment (Q = Qs + Qf).

[0063] (Calculation process of property value P) When the quality evaluation value Q of the property is calculated according to S40 in FIG. 4, in S50 in FIG. 4, the value estimation unit 40 calculates the property value P at the current time based on the quality evaluation value Q of the property and the property data stored in the property DB22. The property value P can be calculated using the following three methods.

[0064] The first method is a method of calculating the property value P based on the comprehensive quality evaluation value Q of the building and the existing equipment. The quality evaluation value Q is composed of the quality evaluation value Qs of the building and the quality evaluation value Qf of the existing equipment (Q = Qs + Qf). The property value P is calculated using the following formula (1). P = Pn × R1p × Q (1) In formula (1), Pn is the property value at the time of new construction, which is composed of the value Ps of the building at the time of new construction and the value Pf of the existing equipment at the time of new construction (Pn = Ps + Pf). R1p is the land price increase rate at the current time relative to the time of new construction. The land price increase rate R1p can be obtained from the regional information included in the property data.

[0065] The second method is a method of calculating the property value P by separating the value of the building and the value of the existing equipment. The property value P is calculated using the following formula (2). P = (Ps × R1p × Qs) + (Pf × Qf) (2) The first term on the right side of formula (2) represents the value of the building, and the second term on the right side represents the value of the existing equipment. The value of the building is obtained by multiplying the value Ps of the building at the time of new construction by the land price increase rate R1p and the quality evaluation value Qs of the building. The value of the existing equipment is obtained by multiplying the value Pf of the existing equipment at the time of new construction by the quality evaluation value Qf of the existing equipment.

[0066] The third method is a method of calculating the property value P by further dividing the value of the owned facilities shown in the second term on the right side of formula (2) into the value for each facility. The property value P is calculated using the following formula (3). P=(Ps×R1p×Qs)+(Pf1×Qf1)+(Pf2×Qf2)+·· (3) The first term on the right side of formula (3) indicates the value of the building, and each term after the second term on the right side indicates the value for each facility. The value of a certain facility is obtained by multiplying the value Pf of the facility at the time of new construction by the quality evaluation value Qf of the facility at the current time.

[0067] Next, the value estimation unit 40 transmits the property value P calculated in S50 to the communication terminal device 400 via the communication unit 10 according to S60 in FIG. 4. The communication terminal device 400 notifies the user of the received property value P.

[0068] As described above, according to the property value estimation system 100 according to Embodiment 1, it is possible to reflect the quality values of the building and the owned facilities at the current time and the effects of the maintenance work (quality restoration and suppression of quality deterioration) performed on the building and the owned facilities up to the current time. Thereby, based on the actual quality values of the building and the owned facilities, the value of the property at the current time can be appropriately estimated.

[0069] [Embodiment 2] In the above-described Embodiment 1, as an example of the correction value table, a correction value table (see FIG. 7) in which correction values of quality values by maintenance work are set for each building structure and facility is shown. However, a configuration in which correction values are set for each content of the maintenance work may also be used. Since the configuration of the property value estimation system 100 according to Embodiment 2 is the same as the configuration of the property value estimation system 100 according to Embodiment 1, the description thereof is omitted.

[0070] FIG. 10 is a diagram showing a second example of a correction value table. In the example of FIG. 10, correction values are set for each content of the maintenance work of the air conditioner. Each correction value corresponds to the quality value of the air conditioner that is restored according to the content of the maintenance work such as filter cleaning, filter replacement, fan replacement, refrigerant leakage inspection, etc. of the air conditioner.

[0071] In Embodiment 2, the quality evaluation unit 30 refers to the correction value table shown in FIG. 10 at S30 in FIG. 4, and calculates the correction value of the quality value of the air conditioner based on the performance information of the maintenance work on the air conditioner included in the maintenance data. FIG. 11 is a diagram showing an example of the maintenance data of the air conditioner. FIG. 11 shows the content of the maintenance work of the air conditioner carried out in August 2021. As shown in FIG. 11, the maintenance work carried out in August 2021 is filter cleaning, refrigerant leakage inspection, and communication test.

[0072] The quality evaluation unit 30 calculates the correction value of the quality value of the air conditioner by referring to the correction value table shown in FIG. 10 for the maintenance work carried out in August 2021. Specifically, the quality evaluation unit 30 calculates a total correction value of "5.5%" by adding up the correction value of "0.3%" for filter cleaning, the correction value of "5%" for refrigerant leakage inspection, and the correction value of "0.2%" for communication test.

[0073] FIG. 12 is a diagram showing the time transition of the correction value due to the maintenance work of the air conditioner. FIG. 12 shows the correction values due to the maintenance work of the air conditioner carried out every year from the time of new construction (August 2013). The correction values for each year are calculated based on the content of the maintenance work carried out that year by referring to the correction value table shown in FIG. 10. The correction value changes reflecting the content of the maintenance work carried out that year.

[0074] The quality evaluation unit 30 calculates the quality evaluation value Q of the air conditioner based on the quality value of the air conditioner calculated in S20 and the correction value of the air conditioner (see FIG. 12) calculated in S30 according to S40 in FIG. 4. FIG. 13 is a diagram for explaining the calculation process of the quality evaluation value Q of the air conditioner. In FIG. 13(A), the time transition of the quality value of the air conditioner (model AE-200) obtained in S20 is shown. FIG. 13(A) is obtained from the quality value table shown in FIG. 6 and shows the time transition of the quality value of the air conditioner from the time of new construction (August 2013) to the current time (October 2023).

[0075] In FIG. 13(B), the time transition of the quality evaluation value Qf of the air conditioner calculated according to S40 is shown. The quality evaluation value Qf of the air conditioner is obtained by adding the correction value shown in FIG. 12 to the quality value of the air conditioner for each year. For example, the quality evaluation value Qf in 2014, one year after new construction, is the value “99.5%” obtained by adding the correction value “0.5%” in August 2014 to the quality value “99.0%” in 2014. The quality evaluation value Qf in 2015, two years after new construction, is the value “99.0%” obtained by adding the correction value “0.5%” due to the maintenance work in August 2014 and the correction value “0.5%” due to the maintenance work in August 2015 to the quality value “98.0%” in 2015.

[0076] As described above, according to the property value estimation system 100 according to the second embodiment, the quality value of the building and the owned facilities that decreases according to the number of years of use is corrected with the correction value according to the content of the maintenance work performed on the building and the owned facilities, so that the effect of the maintenance work (quality recovery and suppression of quality deterioration) can be more finely reflected in the quality evaluation value Q of the building and the owned facilities. According to this, it is possible to more appropriately estimate the value of the property at the current time.

[0077] [Embodiment 3] In the above-described Embodiment 1, the configuration of preparing a quality value table (see FIG. 6) and a correction value table (see FIG. 7) for each building structure and facility has been described. However, a configuration may be adopted in which a quality value table and a correction value table are prepared for each building section and each component of the facility. Note that the configuration of the property value estimation system 100 according to Embodiment 3 is the same as the configuration of the property value estimation system 100 according to Embodiment 1, and thus the description thereof is omitted.

[0078] FIG. 14 is a diagram showing a second example of the quality value table. FIG. 14 is a quality value table of an air conditioner, showing the time transition of the quality value for each part of the air conditioner. In the example of FIG. 14, the time transition of the quality values of the fan and the filter is shown. The quality value of a part is a quantification of the quality (performance, condition, etc.) of the part, with the time of installation in the building being set as 100%. The quality value of a part gradually decreases as the number of years of use of the facility increases. The rate at which the quality value decreases varies depending on the part.

[0079] The quality value table of the components of the facility can be generated in advance by the facility designer or the facility manufacturer using an arbitrary method and stored in the storage device 105. For example, the facility designer or the facility manufacturer can generate a quality value table for each part using an original method based on past failure records, etc., and store the generated quality value table in the storage device 105 via the communication unit 10.

[0080] FIG. 15 is a diagram showing a third example of the correction value table. In the example of FIG. 15, correction values corresponding to the content of the maintenance work are set for each of the filter, fan, refrigerant pipe, and communication line of the air conditioner. In S30 of FIG. 4, the quality evaluation unit 30 refers to the correction value table shown in FIG. 15 and calculates the correction value of the quality value of each part of the air conditioner based on the maintenance work performance information of the air conditioner. FIG. 16 is a diagram showing an example of the maintenance data of the air conditioner. As shown in FIG. 16, the maintenance work carried out in August 2022 includes filter cleaning, refrigerant leak inspection, and communication test. The quality evaluation unit 30 calculates the correction values of the filter, refrigerant pipe, and communication line from the correction value table of FIG. 15.

[0081] Next, the quality evaluation unit 30 calculates the quality evaluation value Qfi of the air conditioner based on the quality values of each component of the air conditioner calculated in S20 and the correction values of each component of the air conditioner calculated in S30 according to S40 in FIG. 4. The quality evaluation value Qfi of the air conditioner is calculated using the following formula (4). Qfi = a1 × Qf_1 + a2 × Qf_2 + ··· + am × Qf_m (4) In formula (4), Qf_1, Qf_2, ··· Qf_m are the quality evaluation values of each of the m components constituting the air conditioner. The quality evaluation value of each component is the sum of the quality value of the component and the correction value calculated according to the maintenance work for that component. The quality evaluation value Qfi of the entire air conditioner is obtained by summing the quality evaluation values calculated for each component.

[0082] Note that as shown in formula (4), a weight coefficient a corresponding to the importance of each component can be set for the quality evaluation value of each component. The weight coefficient a can be set, for example, so that the greater the influence of the component on the quality (performance, state) of the entire air conditioner, the larger the value. Alternatively, the weight coefficient a can be set so that the greater the likelihood of quality degradation of the component, the larger the value.

[0083] As described above, according to the property value estimation system 100 according to Embodiment 3, by calculating the quality value for each component of the building and the owned facilities and calculating the correction value corresponding to the content of the maintenance work for each component, the quality evaluation value for each component can be obtained. According to this, the effect of the maintenance work (quality recovery and suppression of quality degradation) can be more finely reflected in the quality evaluation value Q of the building and the owned facilities. According to this, it becomes possible to more appropriately estimate the value of the property at the current time.

[0084] [Embodiment 4] <Functional Configuration of the Property Value Estimation System> Figure 17 is a block diagram showing the functional configuration of the property value estimation system 100 according to Embodiment 4. The property value estimation system 100 according to Embodiment 4 differs from the property value estimation system 100 according to Embodiment 1 shown in FIG. 3 in the configuration of the storage unit 20. As shown in FIG. 17, the storage unit 20 according to Embodiment 4 is obtained by adding an operation log DB 23 to the storage unit 20 according to Embodiment 1.

[0085] The operation log DB 23 stores operation log data related to the operation history of the property. The operation log data includes data representing the usage status of the building over time and data representing the operation status of the owned facilities over time. The management company or the maintenance company can input the operation log data by operating the communication terminal device 200. Alternatively, the communication terminal device 200 can automatically acquire the operation log data from various monitors installed in the building and the owned facilities.

[0086] In Embodiment 4, the quality evaluation unit 30 calculates the current quality evaluation value Q of the property using the maintenance data stored in the maintenance DB 21, the property data stored in the property DB 22, and the operation log data stored in the operation log DB 23.

[0087] <Operation of the property value estimation system> Figure 18 is a flowchart showing an example of the process executed by the property value estimation system 100 according to Embodiment 4, and is a figure for comparison with FIG. 4. The flowchart shown in FIG. 18 is obtained by adding the process of S60 to the flowchart shown in FIG. 4.

[0088] As shown in FIG. 18, when the quality evaluation unit 30 calculates the quality evaluation value Q of the property based on the property data and the maintenance data by the same S10 to S40 as in FIG. 4, the quality evaluation value Q calculated based on the operation log data stored in the operation log DB 23 is corrected by S60.

[0089] In S60, a correction value for the quality evaluation value Q is calculated according to the operation history of the property. The active use of a building may accelerate the deterioration of the building's quality. Also, the active operation of equipment may accelerate the deterioration of the equipment's quality. In Embodiment 4, by correcting the quality evaluation value Q based on the operation history of the building and the owned equipment, the accuracy of the quality evaluation value Q of the building and the owned equipment is improved.

[0090] In a certain aspect, a correction value for the building's quality evaluation value Qs can be set according to the cumulative number of users of the building from the time of new construction to the current time. The cumulative number of users of the building can be calculated, for example, using an access control system installed in the building.

[0091] Specifically, when the actual value of the cumulative number of users of the building exceeds the predicted value assumed at the time of design, the quality evaluation unit 30 corrects the building's quality evaluation value Qs calculated in S50 in a decreasing direction. The correction value at this time can be set so that the amount of decrease increases as the deviation between the actual value and the predicted value increases. Conversely, when the actual value of the cumulative number of users is less than the predicted value, the quality evaluation unit 30 corrects the building's quality evaluation value Qs calculated in S50 in an increasing direction. The correction value at this time can be set so that the amount of increase increases as the deviation between the actual value and the predicted value increases.

[0092] In another aspect, a correction value for the quality evaluation value Qf of the owned equipment can be set according to the cumulative operation time of the owned equipment from the time of new construction to the current time. The cumulative operation time of the owned equipment can be calculated, for example, using the output signals of various sensors provided in the owned equipment.

[0093] Specifically, when the actual value of the cumulative operation time of the owned equipment exceeds the predicted value assumed at the time of design, the quality evaluation unit 30 corrects the quality evaluation value Qf of the owned equipment calculated in S50 in a decreasing direction. The correction value at this time can be set such that the amount of decrease increases as the deviation between the actual value and the predicted value increases. Conversely, when the actual value of the cumulative operation time is less than the predicted value, the quality evaluation unit 30 corrects the quality evaluation value Qf of the owned equipment calculated in S50 in an increasing direction. The correction value at this time can be set such that the amount of increase increases as the deviation between the actual value and the predicted value increases.

[0094] As described above, according to the property value estimation system 100 according to the fourth embodiment, in addition to the quality values of the building and the owned equipment at the current time and the effects of the maintenance work (quality restoration and suppression of quality degradation) performed on the building and the owned equipment up to the current time, the operation history of the building and the owned equipment up to the current time can be reflected. Thereby, based on the actual quality values of the building and the owned equipment, the value of the property at the current time can be appropriately estimated.

[0095] [Embodiment 5] <Functional Configuration of the Property Value Estimation System> FIG. 19 is a block diagram showing the functional configuration of the property value estimation system 100 according to the fifth embodiment. The property value estimation system 100 according to the fifth embodiment is different from the property value estimation system 100 according to the first embodiment shown in FIG. 3 in the configuration of the storage unit 20. As shown in FIG. 19, the storage unit 20 according to the fifth embodiment is obtained by adding an event DB 24 to the storage unit 20 according to the first embodiment.

[0096] The event DB 24 stores event data related to events that have affected the quality of the property. The event data includes data related to natural disasters such as earthquakes and typhoons, and disasters that have occurred from the time of construction to the current time such as fires and floods, and data related to building renovations, replacement and addition of owned equipment, etc. The management company or the maintenance company can input event data by operating the communication terminal device 200.

[0097] In Embodiment 5, the quality evaluation unit 30 calculates the current quality evaluation value Q of the property using the maintenance data stored in the maintenance DB 21, the property data stored in the property DB 22, and the event data stored in the event DB 24.

[0098] <Operation of the Property Value Estimation System> FIG. 20 is a flowchart showing an example of the processing executed by the property value estimation system 100 according to Embodiment 5, and is a figure for comparison with FIG. 4. The flowchart shown in FIG. 20 is obtained by adding the process of S70 to the flowchart shown in FIG. 4.

[0099] As shown in FIG. 20, the quality evaluation unit 30 refers to the quality value table shown in FIG. 6 by the same S10 and S20 as in FIG. 4, and based on the property specification information, obtains information on the time transition of the building and the owned facilities.

[0100] Next, the quality evaluation unit 30 corrects the information on the time transition of the building and the owned facilities based on the event data stored in the event DB 24 by S70. FIG. 21 is a diagram for explaining the correction process (S70) of the quality value based on the event data. FIG. 21(A) shows the time transition of the quality values of the building and the property obtained from the quality value table. FIG. 21(B) shows the time transition of the quality values corrected based on the event data.

[0101] When an event occurs, the Quality Evaluation Unit 30 determines the quality value to be corrected and the correction value for the quality value based on the time when the event occurred and the content of the event. For example, assume that a disaster occurred in 2016, three years after the new construction in 2013, and the building was damaged. In this case, the Quality Evaluation Unit 30 corrects the quality value of the building in the direction of decreasing it at the time of the disaster. The correction value at this time can be set according to the degree of damage suffered by the building structure due to the disaster. For example, the correction value can be set so that the amount of decrease increases as the degree of damage increases. The Quality Evaluation Unit 30 further corrects the quality value of the building after the occurrence of the disaster in the direction of decreasing it.

[0102] Also, when the owned equipment is replaced, the Quality Evaluation Unit 30 corrects the quality value of the equipment after the time when the equipment replacement was carried out. For example, assume that the air conditioner was replaced in 2021, eight years after the new construction. In this case, the Quality Evaluation Unit 30 corrects the quality value of the air conditioner in 2021 to 100% which is the same as that at the time of new construction. Further, the Quality Evaluation Unit 30 corrects the quality value of the air conditioner after 2022 in the direction of increasing it.

[0103] Next, the Quality Evaluation Unit 30 calculates a correction value for correcting the quality values of the building and the owned equipment based on the maintenance data by the same S30 as in FIG. 4. A correction value table (FIG. 7) is used for calculating this correction value. Based on the performance information of the maintenance work for the building, the correction value of the quality value of the building is calculated, and based on the performance information of the maintenance work for the owned equipment, the correction value of the quality value of the owned equipment is calculated.

[0104] Subsequently, the quality evaluation unit 30 calculates the current quality evaluation value Q of the building and the owned facilities based on the current quality value of the building and the owned facilities calculated in S70 and the correction value of the building and the owned facilities calculated in S30 by the same S40 as in FIG. 4. FIG. 21(C) shows the time transition of the quality evaluation value Q. The quality evaluation value Q is calculated by adding the correction value to the quality value corrected based on the event data. The value estimation unit 40 calculates the current property value P based on the calculated quality evaluation value Q and the property data by the same S50 as in FIG. 4.

[0105] As described above, according to the property value estimation system 100 according to the fifth embodiment, in addition to the quality value of the building and the owned facilities at the current time, the effect of the maintenance work performed on the building and the owned facilities up to the current time (quality recovery and suppression of quality degradation) can be reflected, and the change in quality due to the events that have occurred up to the current time can be reflected. Thereby, based on the actual quality value of the building and the owned facilities, the value of the property at the current time can be appropriately estimated.

[0106] [Embodiment 6] In the sixth embodiment, a configuration example of the property operation support system 1000 using the property value estimation system 100 according to the first to fifth embodiments will be described. The property operation support system 1000 is a system for supporting the operation of a property using the property value P estimated by the property value estimation system 100.

[0107] FIG. 22 is a diagram showing a configuration example of the property operation support system 1000 according to the sixth embodiment. As shown in FIG. 22, the property operation support system 1000 includes a property value estimation system 100 and a plurality of communication terminal devices 200A, 200B, 300, 400, 500. These can exchange various signals and data related to the property via the communication network NW.

[0108] In the example of FIG. 22, the communication terminal device 200A can be operated by a maintenance contractor. The communication terminal device 200B can be operated by a management contractor. The communication terminal device 300 can be operated by a construction contractor, a facility designer, etc. The communication terminal device 400 can be operated by a property owner. The communication terminal device 500 can be operated by a financial institution.

[0109] As described above, the property value estimation system 100 calculates the current property value P based on the maintenance data provided from the communication terminal device 200A or the communication terminal device 200B and the property data provided from the communication terminal device 300. The property value estimation system 100 transmits the calculated property value P to each communication terminal device via the communication network NW. Each communication terminal device is configured to be able to convert the received property value P into an amount of money.

[0110] Specifically, the communication terminal device 400 has a processing device 410. The processing device 410 is configured to include a processor, a memory, and an I / F device as main components. When receiving the property value P, the processing device 410 calculates the rent A of the property from the property value P using a previously prepared relational expression f1. The relational expression f1 is configured such that as the property value P increases, the rent A also increases.

[0111] The communication terminal device 500 has a processing device 510. The processing device 510 is configured to include a processor, a memory, and an I / F device as main components. When receiving the property value P, the processing device 510 calculates the loan amount B for the property owner from the property value P using a previously prepared relational expression f2. The relational expression f2 is configured such that as the property value P increases, the loan amount B also increases.

[0112] The communication terminal device 200B has a processing device 220. The processing device 220 is configured to include a processor, a memory, and an I / F device as main components. When receiving the property value P, the processing device 220 calculates the property management agency fee C from the property value P using a previously prepared relational expression f3. The relational expression f3 is configured such that as the property value P increases, the management agency fee C also increases.

[0113] The communication terminal device 200A has a processing device 210. The processing device 210 is configured to include a processor, a memory, and an I / F device as main components. When receiving the property value P, the processing device 210 calculates the property maintenance contract fee D from the property value P using a previously prepared relational expression f4. The relational expression f4 is configured such that as the property value P increases, the maintenance contract fee D also increases.

[0114] In the property operation support system 1000 shown in FIG. 22, the property value P calculated by the property value estimation system 100 can be shared by the property owner, financial institution, management company, and maintenance company.

[0115] When the property value P increases due to the implementation of the property maintenance work, based on the increased property value P, the property owner can increase the rent received from the building occupants, and as a result, increase the income.

[0116] For the financial institution, based on the increased property value P, a large loan can be provided to the property owner. This creates an opportunity to obtain more repayment interest. Also, for the management company and the maintenance company, based on the increased property value P, an opportunity to increase the management agency fee and the maintenance contract fee received from the property owner respectively is obtained.

[0117] By calculating the appropriate property value P based on the actual property quality value in this way and sharing it among the relevant parties including the property owner, each party can enjoy the effect of the increase in the property value P due to the maintenance work.

[0118] The configurations exemplified as the above-described embodiments are examples of the configurations of the present disclosure, and it is also possible to combine them with other known technologies. It is also possible to change the configuration by omitting a part or the like without departing from the gist of the present disclosure.

[0119] [Appendix] The above-described embodiments are specific examples of the following appendices.

[0120] (Appendix 1) A system for estimating the value of a property consisting of a building and owned facilities, a communication unit that receives maintenance data regarding the maintenance of the property and property data regarding the property from a communication terminal device, a database that stores the maintenance data and the property data, a processor, a memory that stores a program executed by the processor, and the maintenance data includes performance information of maintenance work on the building and the owned facilities, the property data includes specification information of the building and the owned facilities, the processor, according to the program, calculates the current quality value of the building and the owned facilities based on the time transition of the quality value of the building and the owned facilities estimated from the specification information, calculates a correction value of the quality value of the building and the owned facilities restored by the maintenance work based on the performance information of the maintenance work, A property value estimation system that calculates the current quality evaluation value of the property by correcting the current quality value of the building and the owned facilities using the correction value.

[0121] (Appendix 2) the property data further includes regional information including the land price of the location of the building, the processor further The property value estimation system according to Appendix 1, which calculates the current value of the property based on the value of the property at the time of new construction, the quality evaluation value of the property at the current time, and the regional information.

[0122] (Appendix 3) The processor For each type of the building and the held facilities, a quality value table that estimates the time transition of the quality value starting from the time of new construction, and For each type of the building and the held facilities, a correction value table in which the correction value for one maintenance work is set, and has The processor Refers to the quality value table to calculate the current quality value of the building and the held facilities, Refers to the correction value table to calculate the correction value of the building and the held facilities from the performance information of the maintenance work, By adding the correction values of the building and the held facilities to the current quality values of the building and the held facilities respectively, the quality evaluation value of the property at the current time is calculated. The property value estimation system according to Appendix 1 or 2.

[0123] (Appendix 4) The correction value table includes the correction values set according to the content of the maintenance work for each type of the building and the held facilities, The processor refers to the correction value table to calculate the correction values of the building and the held facilities from the performance information of the maintenance work according to the content of the maintenance work. The property value estimation system according to Appendix 3.

[0124] (Appendix 5) The quality value table includes information on the time transition of the quality value estimated starting from the time of new construction for each component of the building and the held facilities, The correction value table includes the correction values set according to the content of the maintenance work for each component of the building and the held facilities, The processor Referring to the quality value table, calculate the quality value at the current time for each component of the building and the owned facilities. Referring to the correction value table, calculate the correction value for each component of the building and the owned facilities from the performance information of the maintenance work. The property value estimation system according to Appendix 3, wherein the quality evaluation value of the property at the current time is calculated by correcting the quality value at the current time for each component of the building and the owned facilities using the correction value for each component.

[0125] (Appendix 6) The property value estimation system according to Appendix 5, wherein the processor calculates the quality evaluation value of the building and the owned facilities at the current time by weighted addition of the quality evaluation values for each component.

[0126] (Appendix 7) The database is further configured to store operation log data related to the operation history of the property. The property value estimation system according to any one of Appendices 1 to 6, wherein the processor corrects the quality evaluation value of the property at the current time based on the operation log data.

[0127] (Appendix 8) The database is further configured to store event data related to events that have affected the quality of the property. The property value estimation system according to any one of Appendices 1 to 7, wherein the processor calculates the quality value at the current time of the building and the owned facilities by correcting the time transition of the quality values of the building and the owned facilities based on the event data.

[0128] (Appendix 9) A property value estimation method for estimating the value of a property consisting of a building and owned facilities, A step in which a processor receives maintenance data related to maintenance of the property and property data related to the property. A step of storing the maintenance data and the property data in a database, The maintenance data includes performance information of maintenance work on the building and the owned facilities, The property data includes specification information of the building and the owned facilities, The property value estimation method is A step in which the processor calculates the current quality values of the building and the owned facilities based on the time progression of the quality values of the building and the owned facilities estimated from the specification information, A step of calculating a correction value of the quality values of the building and the owned facilities restored by the maintenance work based on the performance information of the maintenance work, A property value estimation method further comprising a step of calculating a quality evaluation value of the property at the current time by correcting the current quality values of the building and the owned facilities using the correction value.

[0129] (Supplementary Note 10) The property data further includes regional information including the land price of the location of the building, The property value estimation method according to Supplementary Note 9 further comprising a step in which the processor calculates the value of the property at the current time based on the value of the property at the time of new construction, the quality evaluation value of the property at the current time, and the regional information.

[0130] (Supplementary Note 11) The step of calculating the current quality values of the building and the owned facilities includes a step of calculating the current quality values of the building and the owned facilities by referring to a quality value table in which the time progression of the quality values starting from the time of new construction is estimated for each type of the building and the owned facilities, The step of calculating the correction value of the building and the owned facilities includes a step of calculating the correction value of the building and the owned facilities from the performance information of the maintenance work by referring to a correction value table in which the correction value for one maintenance work is set for each type of the building and the owned facilities, The step of calculating the quality value of the building and the owned facilities at the current time includes the step of calculating the quality evaluation value of the property at the current time by adding the correction values of the building and the owned facilities to the quality values of the building and the owned facilities at the current time, which is the property value estimation method described in Appendix 9 or Appendix 10.

[0131] (Appendix 12) The method for estimating the property value according to any one of Appendices 9 to 11 further includes a step in which the processor corrects the quality evaluation value of the property at the current time based on the operation log data regarding the operation history of the property.

[0132] (Appendix 13) The step of calculating the quality value of the building and the owned facilities at the current time includes the step of calculating the quality value of the building and the owned facilities at the current time by correcting the temporal change of the quality values of the building and the owned facilities based on the event data regarding the event that has affected the quality of the property, which is the property value estimation method described in any one of Appendices 9 to 12.

[0133] (Appendix 14) A program for causing a computer to execute the property value estimation method according to any one of Appendices 9 to 13.

[0134] (Appendix 15) The property operation support system includes a property value estimation system according to any one of Appendices 2 to 8, and a plurality of communication terminal devices that communicate with the property value estimation system via a communication network, wherein the processor transmits the calculated quality evaluation value of the property at the current time to the plurality of communication terminal devices, and each of the plurality of communication terminal devices includes a processing device that converts the received quality evaluation value into an amount.

[0135] The embodiments disclosed herein should be considered as illustrative in all respects and not restrictive. The scope of the present disclosure is shown not by the above description but by the claims, and it is intended that all modifications within the meaning and scope equivalent to the claims be included.

Explanation of Signs

[0136] 10 Communication unit, 20 Storage unit, 21 Maintenance DB, 22 Property DB, 23 Operation log DB, 24 Event DB, 30 Quality evaluation unit, 40 Value estimation unit, 100 Property value estimation system, 101 CPU, 102 RAM, 103 ROM, 104 I / F device, 105 Storage device, 106 Communication bus, 200, 200A, 200B, 300, 400, 500 Communication terminal devices, 210, 220, 410, 510 Processing devices, 1000 Property operation support system, NW Communication network, P Property value, Q Quality evaluation value.

Claims

1. A system for estimating the value of a property consisting of a building and owned facilities, comprising: a communication unit that receives maintenance data regarding maintenance of the property and property data regarding the property from a communication terminal device; a database that stores the maintenance data and the property data; a processor; a memory that stores a program executed by the processor, wherein the maintenance data includes performance information of maintenance work on the building and the owned facilities, the property data includes specification information of the building and the owned facilities, the processor, according to the program, calculates the current quality value of the building and the owned facilities based on the time progression of the quality values of the building and the owned facilities estimated from the specification information, calculates a correction value of the quality value of the building and the owned facilities restored by the maintenance work based on the performance information of the maintenance work, and calculates the quality evaluation value of the property at the current time by correcting the current quality value of the building and the owned facilities using the correction value, a property value estimation system.

2. The property data further includes regional information including the land price of the location of the building, the processor further calculates the value of the property at the current time based on the value of the property at the time of new construction, the quality evaluation value of the property at the current time, and the regional information, the property value estimation system according to claim 1.

3. The processor has a quality value table that estimates the time progression of the quality value starting from the time of new construction for each type of the building and the owned facilities, and a correction value table in which the correction value for one maintenance work is set for each type of the building and the owned facilities, the processor refers to the quality value table to calculate the current quality value of the building and the owned facilities, refers to the correction value table to calculate the correction value of the building and the owned facilities from the performance information of the maintenance work, and calculates the quality evaluation value of the property at the current time by adding the correction values of the building and the owned facilities to the current quality value of the building and the owned facilities respectively, the property value estimation system according to claim 1 or 2.

4. The correction value table includes the correction values set according to the content of the maintenance work for each type of the building and the owned facilities, The object value estimation system according to claim 3, wherein the processor refers to the correction value table and calculates the correction value of the building and the owned facilities according to the content of the maintenance work from the performance information of the maintenance work.

5. The quality value table includes information on the time transition of the quality value estimated starting from the time of new construction for each component of the building and the owned facilities. The correction value table includes the correction value set according to the content of the maintenance work for each component of the building and the owned facilities. The processor refers to the quality value table and calculates the current quality value for each component of the building and the owned facilities. refers to the correction value table and calculates the correction value for each component of the building and the owned facilities from the performance information of the maintenance work. The object value estimation system according to claim 3, wherein the processor corrects the current quality value for each component of the building and the owned facilities using the correction value for each component, thereby calculating the quality evaluation value of the object at the current time.

6. The object value estimation system according to claim 5, wherein the processor calculates the quality evaluation value of the building and the owned facilities at the current time by weighted addition of the quality evaluation values for each component.

7. The database is further configured to store operation log data related to the operation history of the object. The object value estimation system according to claim 1 or 2, wherein the processor corrects the quality evaluation value of the object at the current time based on the operation log data.

8. The database is further configured to store event data related to an event that affected the quality of the object. The object value estimation system according to claim 1 or 2, wherein the processor calculates the current quality value of the building and the owned facilities by correcting the time transition of the quality value based on the event data.

9. An object value estimation method for estimating the value of an object consisting of a building and owned facilities, comprising: a step of a processor receiving maintenance data related to maintenance of the object and object data related to the object; a step of storing the maintenance data and the object data in a database. The maintenance data includes performance information on maintenance work for the building and the owned facilities. The property data includes specification information on the building and the owned facilities. The property value estimation method includes a step in which the processor calculates the current quality values of the building and the owned facilities based on the time evolution of the quality values of the building and the owned facilities estimated from the specification information. a step of calculating a correction value of the quality value of the building and the owned facilities restored by the maintenance work based on the performance information of the maintenance work; A property value estimation method further comprising a step of calculating a quality evaluation value of the property at the current time by correcting the quality value of the building and the owned facilities at the current time using the correction value.

10. The property data further includes regional information including the land price of the location of the building. The property value estimation method according to claim 9, further comprising a step in which the processor calculates the value of the property at the current time based on the value of the property at the time of new construction, the quality evaluation value of the property at the current time, and the regional information.

11. The step of calculating the current quality values of the building and the owned facilities includes referring to a quality value table that estimates the time evolution of the quality values starting from the time of new construction for each type of the building and the owned facilities, and calculating the current quality values of the building and the owned facilities. The step of calculating the correction value of the building and the owned facilities includes referring to a correction value table in which the correction value for one maintenance work is set for each type of the building and the owned facilities, and calculating the correction value of the building and the owned facilities from the performance information of the maintenance work. The property value estimation method according to claim 9, wherein the step of calculating the current quality values of the building and the owned facilities includes a step of calculating the quality evaluation value of the property at the current time by adding the correction values of the building and the owned facilities to the current quality values of the building and the owned facilities, respectively.

12. The property value estimation method according to claim 9, further comprising a step in which the processor corrects the quality evaluation value of the property at the current time based on operation log data regarding the operation history of the property.

13. The step of calculating the current quality values of the building and the owned facilities includes correcting the temporal changes in the quality values of the building and the owned facilities based on event data regarding events that have affected the quality of the property, so as to calculate the current quality values of the building and the owned facilities. The property value estimation method according to claim 9.

14. A program for causing a computer to execute the property value estimation method according to any one of claims 9 to 13.

15. The property value estimation system according to claim 2, comprising a plurality of communication terminal devices that communicate with the property value estimation system via a communication network, wherein the processor transmits the calculated current quality evaluation value of the property to the plurality of communication terminal devices, and each of the plurality of communication terminal devices includes a processing device that converts the received quality evaluation value into an amount. A property operation support system.

Images