Housing plan proposal system

Abstract

To provide a house plan proposal system capable of proposing a house to adequately meet customer needs while reducing costs.SOLUTION: A unit arrangement plan of a house is predetermined in a house plan proposal device 10. A plurality of first floor layout plans corresponding to the unit arrangement plan for each unit arrangement plan are stored in a first floor layout plan data base 27. A plurality of second floor layout plans corresponding to the unit arrangement plan for each unit arrangement plan are stored in a second floor layout plan data base 28. A layout plan creating part 32 creates a layout plan of the house by combining either of the plurality of first floor layout plans corresponding to the unit arrangement plan stored in the first floor layout plan data base 27 and either of the plurality of first floor layout plans corresponding to the unit arrangement plan stored in the second floor layout plan data base 28.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a house plan proposal system. [Background technology]

[0002] Home builders generally sell two-story homes with a first and second floor. Among these two-story homes, there are planned homes where the basic plan for the layout and specifications is decided in advance. Planned homes have a certain degree of uniformity in the layout and specifications, which allows for cost reduction and shortening of construction time.

[0003] Home builders often create and propose house plans to customers who are considering purchasing a house. For example, a house plan proposal system is used to propose house plans (see, for example, Patent Document 1). When using the house plan proposal system to propose a plan for a planned house made using a conventional construction method to a customer, it is considered that several (for example, 2 to 3) floor plan plans are prepared in advance and are proposed to the customer while being displayed on a display. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2019-200725 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, in planned housing, the floor plan is decided in advance, so there is a problem that it is difficult to meet the diverse needs of customers. Also, if the number of floor plans is increased in order to meet the needs of customers, this will lead to an increase in costs, and there is a risk that the advantage of planned housing will be lost.

[0006] In a traditionally constructed house, the load acting on the building is supported by partition walls on the first and second floors, through columns extending between the first and second floors, etc. Therefore, for example, if the layout of the first floor is changed, the layout of the second floor must be reviewed accordingly. Therefore, in a traditionally constructed house, when adding a new floor plan, the layout of the first floor and the second floor must be reviewed at the same time, which is a heavy burden and can easily lead to increased costs.

[0007] The present invention has been made in consideration of the above-mentioned circumstances, and its main object is to provide a housing plan proposal system that can propose homes that easily meet customer needs while reducing costs. [Means for solving the problem]

[0008] In order to solve the above problems, a first invention is a house plan proposal system for creating a house plan for a house having a lower floor and an upper floor adjacent to each other vertically and a staircase section connecting the lower floor and the upper floor, and proposing the house plan to a customer, wherein the house is a modular house in which the lower floor and the upper floor are each constructed by arranging a plurality of building units, each of which includes a rectangular parallelepiped frame body, side by side, and a unit arrangement plan for the house, which is a plan regarding the arrangement of the building units on the lower floor and the upper floor, is determined in advance, and the unit arrangement plan The system comprises a floor plan storage means for storing a plurality of lower floor floor plans relating to the floor plan of the lower floor and a plurality of upper floor floor plans relating to the floor plan of the upper floor as floor plans for the corresponding house, and the plurality of lower floor floor plans and the plurality of upper floor floor plans are all plans in which the position of the staircase is in the same position, and a floor plan creation means for creating a floor plan for the house by combining any one of the plurality of lower floor floor plans and any one of the plurality of upper floor floor plans stored in the floor plan storage means.

[0009] In a modular house with a lower floor and an upper floor, the lower floor and the upper floor are each constructed by arranging a plurality of building units side by side. In a modular house, the building structure is constructed by the frame of each building unit, and the load applied to the house is supported by the building structure. Therefore, unlike houses constructed by conventional construction methods, a modular house does not have a structure that supports the load by through columns extending across the lower floor and the upper floor or partition walls. Therefore, in a modular house, once the arrangement of the building units on the lower floor and the upper floor is determined, the load-bearing strength of the house can be considered to be approximately the same regardless of the type of floor plan on the lower floor and the upper floor. Therefore, the housing plan proposal system of the present invention focuses on such points and has the following configuration.

[0010] That is, in this system, a unit arrangement plan for the arrangement of building units in the lower floor and upper floor of a house is predefined. In addition, as floor plans for a house corresponding to the unit arrangement plan, a lower floor floor plan for the lower floor and an upper floor floor plan for the upper floor are stored in plurality, and the lower floor floor plans and the upper floor floor plans are all plans in which the position of the staircase is set to the same position. Then, a floor plan for a house is created by combining any one of the stored lower floor floor plans with any one of the upper floor floor plans. In this case, the number of variations (types) of floor plans for a house can be increased by the number of combinations of lower floor floor plans and upper floor floor plans. Therefore, it is easy to meet the needs of customers. In addition, in a configuration in which a floor plan for a house is created by combining a lower floor floor plan and an upper floor floor plan in this way, the number of lower floor floor plans and upper floor floor plans themselves that need to be prepared is relatively small. Therefore, it is not a large burden to increase the types of floor plans for a house, and as a result, costs can be reduced.

[0011] The second invention is a home plan proposal system in which, in the first invention, a plurality of unit arrangement plans are prepared in advance, the floor plan storage means stores, for each unit arrangement plan, the plurality of lower floor floor plan plans and the plurality of upper floor floor plan plans corresponding to the unit arrangement plan, and the system is equipped with a unit arrangement plan determination means for determining one of the plurality of unit arrangement plans as the unit arrangement plan for the home, and the floor plan creation means creates a floor plan for the home by combining one of the plurality of lower floor floor plan plans corresponding to the determined unit arrangement plan stored in the floor plan storage means with one of the plurality of upper floor floor plan plans corresponding to the determined unit arrangement plan.

[0012] According to the second invention, for each of a plurality of unit arrangement plans prepared in advance, a plurality of lower floor floor plans and a plurality of upper floor floor plans are stored corresponding to the unit arrangement plans. Then, one of the plurality of unit arrangement plans is determined as the unit arrangement plan of the house, and a floor plan of the house is created by combining one of the plurality of lower floor floor plans corresponding to the determined unit arrangement plan with one of the plurality of upper floor floor plans corresponding to the determined unit arrangement plan. In this case, the variation of house plans can be further increased, making it easier to meet customer needs. [Brief description of the drawings]

[0013] [Figure 1] FIG. 1 is a diagram showing a schematic configuration of a house plan proposal device. [Diagram 2] FIG. 4 is a functional block diagram showing a house plan proposal process. [Diagram 3] FIG. [Figure 4] A diagram showing a staircase location plan. [Diagram 5] A diagram showing the first floor floor plan. [Figure 6] A diagram showing the second floor floor plan. [Figure 7] FIG. 2 is a perspective view showing a schematic of a building unit. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] An embodiment of the present invention will be described below with reference to the drawings. In this embodiment, the house plan proposal system of the present invention is embodied as a house plan proposal device installed in a dealership of a housing manufacturer. In this embodiment, it is assumed that a house plan is proposed to a customer who visits the dealership using the house plan proposal device. The house plan proposed to the customer is assumed to be a plan of a planned house with a basic plan of the floor plan and specifications determined in advance, and in particular, a plan of a two-story unitary house formed by combining a plurality of building units with each other. Therefore, before describing the house plan proposal device, an outline of the unitary house will be described with reference to FIG. 7. FIG. 7 is a perspective view showing an outline of the building units constituting the unitary house.

[0015] 7, the building unit 40 is formed in a rectangular parallelepiped shape and includes four pillars 41 arranged at the four corners, and four ceiling girders 42 and floor girders 43 that respectively connect the upper and lower ends of each pillar 41. The pillars 41, ceiling girders 42, and floor girders 43 form a rectangular parallelepiped frame 48.

[0016] In the ceiling portion of the building unit 40, a plurality of ceiling joists 44 are suspended between opposing ceiling girders 42. In addition, in the floor portion of the building unit 40, a plurality of floor joists 45 are suspended between opposing floor girders 43. Although not shown in the figure, the ceiling surface material is supported from above by the ceiling joists 44, and the floor surface material is supported from below by the floor joists 45. In addition, wall surface materials (not shown), such as interior wall surface materials and exterior wall surface materials, are attached to the side portions of the building unit 40.

[0017] The modular house has a first floor 51 as the lower floor and a second floor 52 as the upper floor (see FIG. 3). Both the first floor 51 and the second floor 52 are formed by arranging a plurality of building units 40 side by side. All of these building units 40 are of the same size. Furthermore, in a planned modular house, the arrangement of the building units 40 lined up on the first floor 51 is the same as the arrangement of the building units 40 lined up on the second floor 52. Furthermore, in a modular house, the frame bodies 48 of each building unit 40 form a building structure, and the load applied to the house is supported by this building structure.

[0018] Next, the house plan proposal device 10 will be described with reference to Fig. 1. Fig. 1 is a diagram showing a schematic configuration of the house plan proposal device 10.

[0019] As shown in FIG. 1, the house plan proposal device 10 is configured by a personal computer, and includes a control unit 11, an operation unit 12, a display unit 13, and a memory unit 14. The control unit 11 performs various processes related to the proposal of a house plan, and is configured with a well-known microcomputer having a CPU and the like. The control unit 11 is connected to the operation unit 12, the display unit 13, and the memory unit 14. The operation unit 12 is for inputting various information required for the house plan proposal process, and is configured with a keyboard, a mouse, and the like. The display unit 13 is for displaying various information such as a house plan to be proposed to a customer, and is made up of a display. The memory unit 14 stores various information required for the house plan proposal process.

[0020] Next, the flow of the house plan proposal process executed by the house plan proposal device 10 will be explained with reference to Fig. 2. Fig. 2 is a functional block diagram showing the house plan proposal process. In the house plan proposal device 10, each block 22, 23, 25, 26, and 31 to 34 in Fig. 2 is realized by the control unit 11, and each database 21, 24, 27, 28 is constructed by the storage unit 14.

[0021] 2, the unit arrangement plan database 21 stores unit arrangement plans Pu relating to unit arrangements, which are arrangements of building units 40 in a first floor section 51 and a second floor section 52 of a house (modular house). In this embodiment, a plurality of unit arrangement plans Pu are prepared in advance for the house, and specifically, three unit arrangement plans Pu are prepared. These three unit arrangement plans Pu are stored in the unit arrangement plan database 21.

[0022] 3 shows three unit arrangement plans Pu stored in the unit arrangement plan database 21. In all of these unit arrangement plans Pu, the arrangement of the building units 40 in the first floor portion 51 is the same as the arrangement of the building units 40 in the second floor portion 52. In the unit arrangement plan Pu(a) shown in FIG. 3(a), the building units 40 are arranged in 3×2 rows in the first floor portion 51 and the second floor portion 52. In the unit arrangement plan Pu(b) shown in FIG. 3(b), the building units 40 are arranged in 4×1 rows in the first floor portion 51 and the second floor portion 52. Therefore, in these unit arrangement plans Pu(a) and Pu(b), the building units 40 are arranged to form a rectangular shape in a plan view as a whole.

[0023] In the unit arrangement plan Pu(c) shown in Fig. 3(c), the building units 40 are arranged in a 3 x 1 row in the first floor portion 51 and the second floor portion 52. Furthermore, in this unit arrangement plan Pu(c), another building unit 40 is arranged adjacent to the building units 40 arranged in the 3 x 1 row. As a result, in the unit arrangement plan Pu(c), the building units 40 are arranged so that they form an L-shape as a whole in a plan view.

[0024] As a result of the above, each unit arrangement plan Pu results in a simple exterior appearance for the house, which helps reduce costs.

[0025] The unit arrangement plan display unit 22 reads out each unit arrangement plan Pu (Pu(a) to Pu(c)) stored in the unit arrangement plan database 21 and displays it on the display unit 13. This makes it possible to present each unit arrangement plan Pu to the customer. Therefore, the customer can select a desired plan from these unit arrangement plans Pu.

[0026] The unit arrangement plan determination unit 23 determines one of the unit arrangement plans Pu displayed by the unit arrangement plan display unit 22 as the unit arrangement plan for the house. When one of the unit arrangement plans Pu is selected by operating the operation unit 12, the unit arrangement plan determination unit 23 determines the selected unit arrangement plan Pu as the unit arrangement plan for the house. The selection operation using the operation unit 12 may be performed by a sales staff member of a dealer or by the customer himself / herself. The unit arrangement plan determination unit 23 corresponds to a unit arrangement plan determination means.

[0027] The staircase position plan database 24 stores a staircase position plan Pk relating to the position of the staircase section 53 connecting the first floor section 51 and the second floor section 52 (more specifically, the position of the staircase section in a plan view) for each unit arrangement plan Pu stored in the unit arrangement plan database 21. For each unit arrangement plan Pu, the staircase position plan database 24 stores a plurality of staircase position plans Pk corresponding to the unit arrangement plan Pu. In this embodiment, two staircase position plans Pk are stored for each unit arrangement plan Pu.

[0028] Fig. 4 illustrates staircase position plans Pk stored in the staircase position plan database 24. Fig. 4 illustrates two staircase position plans Pk corresponding to the unit arrangement plan Pu(a) (see Fig. 3(a)). In the staircase position plan Pk(a) shown in Fig. 4(a), the staircase section 53 is located in the northeast of the house, and in the staircase position plan Pk(b) shown in Fig. 4(b), the staircase section 53 is located in the southwest of the house.

[0029] The staircase position plan display unit 25 reads out a plurality of staircase position plans Pk corresponding to the unit arrangement plan Pu determined by the unit arrangement plan determination unit 23 from the staircase position plan database 24, and displays them on the display unit 13. For example, if the unit arrangement plan Pu determined by the unit arrangement plan determination unit 23 is the unit arrangement plan Pu(a) in FIG. 3(a), the staircase position plan display unit 25 reads out two staircase position plans Pk(a), Pk(b) (see FIGS. 4(a) and (b)) corresponding to the unit arrangement plan Pu(a), and displays them on the display unit 13. This makes it possible to present each staircase position plan Pk corresponding to the unit arrangement plan Pu to the customer. This makes it possible for the customer to select a desired plan from each staircase position plan Pk.

[0030] The staircase position plan determination unit 26 determines one of the staircase position plans Pk displayed by the staircase position plan display unit 25 as the staircase position plan for the house. When one of the staircase position plans Pk is selected by operating the operation unit 12, the staircase position plan determination unit 26 determines the selected staircase position plan Pk as the staircase position plan for the house. The selection operation by the operation unit 12 may be performed by a sales staff member of the store or by the customer himself / herself.

[0031] The first floor floor plan database 27 stores a plurality of first floor floor plans Pm1 (corresponding to lower floor floor plans) relating to the floor plan of the first floor portion 51 of the house. For each unit arrangement plan Pu stored in the unit arrangement plan database 21, the first floor floor plan database 27 stores a plurality of first floor floor plans Pm1 corresponding to the unit arrangement plan Pu. Specifically, the first floor floor plan database 27 stores a plurality of first floor floor plans Pm1 corresponding to the plan combination for each combination (plan combination) of the unit arrangement plan Pu and the staircase position plan Pk. In this embodiment, four first floor floor plans Pm1 are stored for each plan combination.

[0032] Fig. 5 illustrates an example of a first floor floor plan Pm1 stored in the first floor floor plan database 27. Figs. 5(a)-(d) show a plurality of first floor floor plans Pm1 corresponding to the unit arrangement plan Pu(a) (see Fig. 3(a)), and more specifically, show four first floor floor plans Pm1 corresponding to the combination of the unit arrangement plan Pu(a) and the staircase position plan Pk(a) (see Fig. 4(a)). Therefore, all four of these first floor floor plans Pm1 are plans in which the staircase section 53 is located in the northeast.

[0033] The second floor floor plan database 28 stores a plurality of second floor floor plans Pm2 (corresponding to upper floor floor plans) relating to the floor plan of the second floor portion 52 of the house. For each unit arrangement plan Pu stored in the unit arrangement plan database 21, the second floor floor plan database 28 stores a plurality of second floor floor plans Pm2 corresponding to the unit arrangement plan Pu. Specifically, the second floor floor plan database 28 stores a plurality of second floor floor plans Pm2 corresponding to the plan combination for each combination (plan combination) of the unit arrangement plan Pu and the staircase position plan Pk. In this embodiment, four second floor floor plans Pm2 are stored for each plan combination.

[0034] Fig. 6 illustrates an example of a second floor floor plan Pm2 stored in the second floor floor plan database 28. Figs. 6(a)-(d) show a plurality of second floor floor plans Pm2 corresponding to the unit arrangement plan Pu(a) (see Fig. 3(a)), and more specifically, show four second floor floor plans Pm2 corresponding to the combination of the unit arrangement plan Pu(a) and the staircase position plan Pk(a) (see Fig. 4(a)). Therefore, all four of these second floor floor plans Pm2 are plans in which the staircase section 53 is located in the northeast.

[0035] The first floor floor plan database 27 and the second floor floor plan database 28 constitute a floor plan storage means.

[0036] The floor plan display unit 29 reads out from the first floor floor plan database 27 a plurality of first floor floor plans Pm1 corresponding to the combination of the unit arrangement plan Pu of the house determined by the unit arrangement plan determination unit 23 and the staircase position plan Pk of the house determined by the staircase position plan determination unit 26, and displays them on the display unit 13, and also reads out from the second floor floor plan database 28 a plurality of second floor floor plans Pm2 corresponding to the above combination, and displays them on the display unit 13. In this case, the plurality of first floor floor plans Pm1 and the plurality of second floor floor plans Pm2 may be displayed simultaneously on the display unit 13, or may be displayed sequentially.

[0037] For example, if the unit arrangement plan Pu of the house determined by the unit arrangement plan determination unit 23 is the unit arrangement plan Pu(a) (see FIG. 3(a)) and the staircase position plan Pk of the house determined by the staircase position plan determination unit 26 is the staircase position plan Pk(a) (see FIG. 4(a)), the floor plan display unit 29 displays four first floor floor plan plans Pm1 (see FIG. 5(a)-(d)) corresponding to the combination of the unit arrangement plan Pu(a) and the staircase position plan Pk(a) on the display unit 13, and displays four second floor floor plan plans Pm2 (see FIG. 6(a)-(d)) corresponding to the combination on the display unit 13. This makes it possible to present to the customer a plurality (four each) of the first floor floor plan plans Pm1 and the second floor floor plan plans Pm2 corresponding to the combination of the unit arrangement plan Pu and the staircase position plan Pk. Therefore, the customer can select a desired plan from multiple (four) first floor floor plan plans Pm1 and can also select a desired plan from multiple (four) second floor floor plan plans Pm2. Therefore, in this case, the number of combinations of the first floor floor plan Pm1 and the second floor floor plan Pm2 that the customer can select is 4 x 4, or 16.

[0038] The floor plan determination unit 31 determines one of the multiple first floor floor plans Pm1 displayed by the floor plan display unit 29 as the first floor floor plan of the house, and determines one of the multiple second floor floor plans Pm2 displayed by the floor plan display unit 29 as the second floor floor plan of the house. When one of the first floor floor plans Pm1 is selected by operating the operation unit 12, the floor plan determination unit 31 determines the selected first floor floor plan Pm1 as the first floor floor plan of the house. When one of the second floor floor plans Pm2 is selected by operating the operation unit 12, the floor plan determination unit 31 determines the selected second floor floor plan Pm2 as the second floor floor plan of the house. The selection operation by the operation unit 12 may be performed by a sales staff of the store or by the customer himself.

[0039] The floor plan creation unit 32 creates a floor plan for the house by combining the first floor floor plan and the second floor floor plan determined by the floor plan determination unit 31. This creates a floor plan for the entire house including the first floor 51 and the second floor 52. The floor plan creation unit 32 corresponds to a floor plan creation means.

[0040] The house plan display unit 33 displays the house floor plan created by the floor plan creation unit 32 on the display unit 13. This makes it possible to present (propose) the floor plan to the customer. The house plan display unit 33 also displays the unit arrangement plan of the house on the display unit 13.

[0041] According to the configuration of this embodiment described in detail above, the following excellent effects can be obtained.

[0042] In a modular house, the building framework is formed by the frame 48 of each building unit 40, and the load applied to the house is supported by the building framework. Therefore, unlike houses built by conventional construction methods, a modular house does not have a structure in which the load is supported by a through column extending across the first floor 51 and the second floor 52 or a partition wall. Therefore, in a modular house, once the arrangement of the building units 40 in the first floor 51 and the second floor 52 is determined, the load-bearing strength of the house can be considered to be approximately the same regardless of the type of floor plan of the first floor 51 and the second floor 52. Therefore, the housing plan proposal device 10 of the above embodiment focuses on this point and has the following configuration.

[0043] According to the present house plan proposal device 10, a unit arrangement plan Pu for the arrangement of building units 40 in the first floor 51 and the second floor 52 of a house is prepared in advance, and the unit arrangement plan Pu is stored in the unit arrangement plan database 21. In addition, as a house floor plan corresponding to the unit arrangement plan Pu, a first floor floor plan Pm1 in the first floor 51 and a second floor floor plan Pm2 in the second floor 52 are stored in each of the floor plan databases 27 and 28. The first floor floor plans Pm1 and the second floor floor plans Pm2 are all plans in which the position of the staircase 53 is set to the same position. Then, the floor plan creation unit 32 creates a floor plan of the house by combining any one of the stored first floor floor plans Pm1 with any one of the stored second floor floor plans Pm2. In this case, the number of variations (types) of the floor plan of the house can be increased by the number of combinations of the first floor floor plan Pm1 and the second floor floor plan Pm2. Therefore, it is easy to meet the needs of customers. Also, in a configuration in which a house floor plan is created by combining the first floor floor plan Pm1 and the second floor floor plan Pm2, the number of first floor floor plans Pm1 and second floor floor plans Pm2 that need to be prepared is relatively small. Therefore, it is not a big burden to increase the number of house floor plans, and as a result, costs can be reduced.

[0044] A plurality of unit arrangement plans Pu are prepared in advance, and a plurality of first floor floor plans Pm1 and a plurality of second floor floor plans Pm2 are stored in each floor plan database 27, 28 corresponding to each unit arrangement plan Pu. In addition, the unit arrangement plan determination unit 23 determines one of the plurality of unit arrangement plans Pu as the unit arrangement plan of the house. Then, the floor plan creation unit 32 creates a floor plan of the house by combining one of the plurality of first floor floor plans Pm1 corresponding to the determined unit arrangement plan with one of the plurality of second floor floor plans Pm2 corresponding to the determined unit arrangement plan. In this case, the variation of the house plan can be further increased, making it easier to meet the needs of customers.

[0045] The present invention is not limited to the above embodiment, and may be implemented, for example, as follows.

[0046] In the above embodiment, three unit arrangement plans Pu are prepared, but the number of unit arrangement plans Pu to be prepared may be two, four or more, or even just one. However, as the number of unit arrangement plans Pu to be prepared increases, costs will increase accordingly, so from the perspective of reducing costs, it is desirable to set the number of unit arrangement plans Pu to one to three.

[0047] In the above embodiment, two staircase position plans Pk are prepared for each unit arrangement plan Pu, but the number of staircase position plans Pk prepared for each unit arrangement plan Pu may be three or more, or may be one. However, from the viewpoint of reducing costs, it is preferable to have one or two plans.

[0048] In the above embodiment, four first floor layout plans Pm1 are prepared for each unit arrangement plan Pu, more specifically, for each combination of the unit arrangement plan Pu and the staircase position plan Pk, but the number of first floor layout plans Pm1 prepared may be two or three for each combination, or may be five or more. However, from the viewpoint of cost reduction, it is preferable to prepare two to four.

[0049] Similarly, for the second floor layout plan Pm2, two or three, or five or more, may be prepared for each of the above combinations.

[0050] In the above embodiment, the house plan proposal system of the present invention is configured by one device (specifically, the house plan proposal device 10), but this may be modified to be configured by multiple devices. For example, the house plan proposal system may be configured to have a house plan proposal device and an external device connected to the device via a communication network such as the Internet. In this case, for example, the external device may be provided with a storage unit (each database) that stores various information necessary for the house plan proposal process, and the house plan proposal device (control unit) may read out the information necessary for the above process from the storage unit of the external device via the communication network and perform the house plan proposal process. [Explanation of symbols]

[0051] 10... house plan proposing device as a house plan proposing system, 11... control unit, 23... unit arrangement plan determining unit as a unit arrangement plan determining means, 33... floor plan creating unit as a floor plan creating means, 40... building unit.

Claims

1. A house plan proposal system for creating a house plan for a house having a lower floor and an upper floor adjacent to each other vertically and a staircase connecting the lower floor and the upper floor, and proposing the plan to a customer, comprising: The house is a modular house in which the lower floor and the upper floor are each constructed by arranging a plurality of building units, each of which includes a rectangular parallelepiped frame body, side by side, A unit arrangement plan is determined in advance for the house, the plan being a plan regarding an arrangement of the building units in the lower floor and the upper floor; a floor plan storage means for storing a plurality of lower floor floor plans relating to the floor plans of the lower floor section and a plurality of upper floor floor plans relating to the floor plans of the upper floor section as floor plans of the house corresponding to the unit arrangement plan, and the plurality of lower floor floor plans and the plurality of upper floor floor plan plans are all plans in which the position of the staircase section is the same; a floor plan creating means for creating a floor plan of the house by combining any one of the plurality of lower floor floor plans and any one of the plurality of upper floor floor plans stored in the floor plan storage means; A housing plan proposal system that includes the above.

2. A plurality of unit arrangement plans are prepared in advance, The floor plan storage means stores, for each of the unit arrangement plans, the plurality of lower floor floor plans and the plurality of upper floor floor plan plans corresponding to the unit arrangement plan, a unit arrangement plan determination means for determining one of the plurality of unit arrangement plans as a unit arrangement plan for the house; The home plan proposal system of claim 1, wherein the floor plan creation means creates a floor plan for the home by combining one of the plurality of lower floor floor plans corresponding to the determined unit arrangement plan stored in the floor plan storage means with one of the plurality of upper floor floor plans corresponding to the determined unit arrangement plan.

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