Building

Abstract

To secure a telework room with an environment where users can easily concentrate on their work.SOLUTION: A building 1 comprises a first room (a first Western-style room 22) and a second room (a small room 25). The first room is a living room neighboring the second room and is equipped with a first entrance (a first Western-style room doorway 22b) for entering the first room from outside the first room. The second room is a skip-down room in which a floor of the second room is located at a lower level than a floor of the first room, and is equipped with a second entrance (a small room doorway 25a) for entering the second room. As a route R from outside the first room to the second room, a route is formed from the first entrance through the first room and to the second entrance. The second entrance can be used as an entrance for entering the second room from the first room.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to buildings. [Background technology]

[0002] In recent years, teleworking has been recommended by various companies and society as a whole for the purposes of energy conservation and work-life balance. For example, Patent Document 1 discloses a house that is provided with a working zone (telework room) that functions as a satellite office by introducing a system that supports teleworking in addition to office equipment. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-113616 Summary of the Invention [Problem to be solved by the invention]

[0004] Telework rooms are required to be environments that allow users to easily concentrate on their work. The present invention has been made in view of the above circumstances, and its purpose is to provide a telework room that provides an environment in which users can easily concentrate on their work. [Means for solving the problem]

[0005] The invention described in claim 1 is, for example, as shown in Figs. 1 to 10, a building 1 having a first room (first room 22) and a second room (small room 25), The first room is a living room adjacent to the second room and includes a first entrance (first entrance / exit 22b) for entering the first room from outside the first room, The second room is a skip-down room in which the floor of the second room is lower than the floor of the first room, and is provided with a second entrance (small room entrance 25a) for entering the second room, The route R for going from outside the first room to the second room is characterized in that a route is formed from the first entrance, through the first room, to the second entrance.

[0006] According to the invention described in claim 1, to go from outside the first room (first room 22) to the second room (small room 25), one must pass through the first room. In other words, because the second room is located at the back of the first room, the frequency with which people pass in front of the second entrance (small room entrance / exit 25a) can be reduced compared to when the second room is located in front of the first room. Therefore, by using the second room as a telework room, it is possible to ensure a telework room environment that allows users to easily concentrate on their work.

[0007] The invention described in claim 2 is, for example, as shown in Figs. 1 to 5 and Figs. 8 to 10, in the building 1 described in claim 1, The second entrance (small room entrance 25a) is characterized by being an entrance for entering the second room (small room 25) from the first room (first room 22).

[0008] According to the invention described in claim 2, direct movement between the second room (small room 25) and the first room (first room 22) is possible via the second entrance (small room entrance 25a). Therefore, by using the second room as a telework room exclusively for the user of the first room, it is possible to ensure a telework room with a user-friendly environment for that user.

[0009] The invention described in claim 3 is, for example, as shown in Figs. 6 and 7, in the building 1 described in claim 1, The second entrance (small room entrance 25a) is an entrance for entering the second room (small room 25) from the balcony 20, The route R is characterized by being a route that runs from the first entrance (first room entrance 22b) through the first room (first room 22) and the balcony 20 to the second entrance (small room entrance 25a).

[0010] According to the invention described in claim 3, to go from outside the first room (first Western-style room 22) to the second room (small room 25), one must first go out onto the balcony 20 (outdoor space). Therefore, although the second room is located in the building 1, it can be used as if it were a "detached room," which gives a special feeling to those who go to or are in the second room.

[0011] The invention described in claim 4 is, for example, as shown in Figs. 8 to 10, in the building 1 described in claim 1, The second room (small room 25) is equipped with a window (second opening 72a) located at a position lower than the floor of the first room (first Western-style room 22), and is characterized in that the floor directly below the floor on which the first room is located can be seen from within the second room through the window.

[0012] According to the invention described in claim 4, the floor below can be seen from inside the second room (small room 25) through the window (second opening 72a), giving people in the second room a sense of openness.

[0013] The invention described in claim 5 is, for example, as shown in Figs. 8 to 10, in the building described in claim 4, A garage (carport 80) is provided on the floor directly below. The inside of the garage can be seen from inside the second room through the window (second opening 72a).

[0014] According to the invention described in claim 5, if a car or the like is parked in the garage (carport 80), the car or the like can be viewed from inside the second room (small room 25) through the window (second opening 72a), so the second room can be suitably used not only as a telework room but also as a hobby room.

[0015] The invention described in claim 6 is, for example, as shown in Figs. 1 to 7, in the building 1 described in claim 1, A sloped roof (roof 3) is provided on the building body 2, and has a first roof section 31 that is set to have a long length from the ridge section 3a to a first eaves section 31a, and a second roof section 32 that is adjacent to the first roof section 31 and is formed integrally with the first roof section 31 to form the same roof surface, and that is set to have a short length from the ridge section 3a to a second eaves section 32a, The second room (small room 25) is characterized in that it is located at a position closest to the first eaves portion 31a among the rooms located directly under the first roof portion 31.

[0016] According to the invention described in claim 6, the second room (small room 25) is a skip-down room in which the floor of the second room is lower than the floor of the first room (first Western-style room 22), so even if the height of the ceiling surface is lower compared to the first room, it is possible to easily ensure a ceiling height sufficient for use as a telework room. [Effects of the Invention]

[0017] According to the present invention, a telework room can be secured that provides an environment where users can easily concentrate on their work. [Brief explanation of the drawings]

[0018] [Figure 1] First embodiment: South elevation of the building. [Figure 2] First embodiment: East elevation of the building. [Figure 3] First embodiment: A plan view showing the first floor of a building. [Figure 4] First embodiment: A plan view showing the second floor of a building. [Figure 5] First embodiment: A longitudinal cross-sectional view of a building taken along line AA in FIG. 3. [Figure 6] Second embodiment: A plan view showing the second floor of a building. [Figure 7] Second embodiment: A diagram showing the relationship between a small room and a balcony. [Figure 8] Third embodiment: A plan view showing the first floor of a building. [Figure 9] Third embodiment: A plan view showing the second floor of a building. [Figure 10] Third embodiment: a perspective view showing the inside of a small room. [Figure 11] A modification of the third embodiment: a plan view showing the second floor of a building. [Figure 12] A modification of the first and second embodiments: a longitudinal cross-sectional view of a building. DETAILED DESCRIPTION OF THE INVENTION

[0019] Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, although the embodiments described below are subject to various technically preferable limitations for carrying out the present invention, the technical scope of the present invention is not limited to the following embodiments and illustrated examples. It should be noted that the directions in the following embodiments and illustrated examples are set solely for the convenience of explanation. In the following description, when ordinal numbers such as "first" and "second" are attached to common names, the ordinal numbers are used only to identify the objects to which they are attached. They do not limit the objects to which they are attached to a specific object, and they do not specify the order, rank, order, hierarchy, priority, subordination, etc. of the objects to which they are attached.

[0020] [First embodiment] Fig. 1 is a south elevation view of the building 1 in the first embodiment. Fig. 2 is an east elevation view of the building 1 in the first embodiment. The building 1 in this embodiment is a two-story residence, but is not limited to this, and the building 1 may be three or more stories high, or may be something other than a residence. The building 1 is constructed using a panel construction method in which building components such as walls, floors, and roofs are pre-assembled into panels at a factory and then assembled at the construction site. However, this is not limited to this method, and the building 1 may also be a building made of wood, steel frame, reinforced concrete, or the like, using conventional frame or wall construction methods. A panel (wooden architectural panel) is a frame made by assembling vertical and horizontal frame members into a rectangular shape, with auxiliary beams assembled vertically and horizontally inside the rectangular frame to form a frame, and then covering one or both sides of this frame with a surface material such as plywood, resulting in a hollow structure.Furthermore, this hollow space is filled with insulating material such as glass wool or rock wool.

[0021] As shown in FIGS. 1 and 2, the building 1 comprises a two-story building body 2 constructed on a foundation, and a roof 3 provided on the building body 2. The roof 3 is a sloped roof (pitched roof). The roof 3 in this embodiment is a gable roof and includes a ridge 3a extending in the east-west direction, a south roof surface 3b located south of the ridge 3a, and a north roof surface 3c located north of the ridge 3a. In this embodiment, the south roof surface 3b and the north roof surface 3c are set at the same slope angle.

[0022] The south roof surface 3b is L-shaped in plan view. That is, the south roof surface 3b has a portion with a long length to the eaves and a portion with a short length to the eaves. More specifically, the south roof surface 3b of the roof 3 has a first roof section 31 with a long length from the ridge 3a to the first eaves edge 31a, and a second roof section 32 with a short length from the ridge 3a to the second eaves edge 32a. The first roof section 31 and the second roof section 32 are adjacent to each other and integrally formed to form the same roof surface (south roof surface 3b). That is, the south roof surface 3b is formed approximately L-shaped in plan view. The first eaves edge 31a and the second eaves edge 32a are connected in a crank-like shape via the eaves 31b, which is the western end of the first roof section 31. As shown in FIG. 2, the length from the ridge 3a to the first eaves 31a on the south roof surface 3b is set to be approximately equal to the length from the ridge 3a to the north eaves on the north roof surface 3c.

[0023] As shown in Fig. 1, a solar cell array 4 having a plurality of solar cell modules is installed on the upper surface of the south roof surface 3b. The plurality of solar cell modules in the solar cell array 4 are also arranged in a substantially L-shape in plan view, in accordance with the shape of the south roof surface 3b.

[0024] Fig. 3 is a plan view showing the first floor of the building 1 in the first embodiment. Fig. 4 is a plan view showing the second floor of the building 1 in the first embodiment. Fig. 5 is a vertical cross-sectional view of the building 1 in the first embodiment, taken along line AA in Fig. 3. As shown in FIGS. 3 and 4, the building 1 is divided into an east area 1a and a west area 1b, with the boundary line between the first roof portion 31 and the second roof portion 32 as the boundary. 3 to 5, the building 1 is divided into a central area 1c, a south area 1d, and a north area 1e according to the distance from the foundation to the roof 3. Specifically, the central area 1c is an area where the distance from the foundation to the roof 3 is equal to or greater than a predetermined distance, and the south area 1d and the north area 1e are areas where the distance from the foundation to the roof 3 is less than the predetermined distance.

[0025] The building body 2 has a shape corresponding to the difference in size between the length from the ridge 3a to the first eaves end 31a on the south roof surface 3b and the length from the ridge 3a to the second eaves end 32a on the south roof surface 3b. That is, the portion of the building body 2 located in the east area 1a is longer in the north-south direction than the portion located in the west area 1b. Specifically, in east area 1a, rooms are provided in the overlapping area with north area 1e, the overlapping area with central area 1c, and the overlapping area with south area 1d. Meanwhile, in west area 1b, rooms are provided in the overlapping area with north area 1e and the overlapping area with central area 1c, but no rooms are provided in the overlapping area with south area 1d. In the building 1 of this embodiment, in the overlapping area where the east side area 1a and the south side area 1d overlap, a dining room 14 is located on the first floor and a small room 25 is located on the second floor. Meanwhile, in the overlapping area where the west side area 1b and the south side area 1d overlap, an outdoor living room 10 is located on the first floor and a balcony 20 is located on the second floor.

[0026] That is, the portion of the building main body 2 located in the east area 1a is formed longer in the north-south direction by the length of the rooms 14 and 25 than the portion located in the west area 1b. In other words, of the exterior walls facing south in the building main body 2, the first exterior wall 61 located in the east area 1a has a wall surface extending from the foundation to the first roof portion 31, and of the exterior walls facing south in the building main body 2, the second exterior wall 62 located in the west area 1b has a wall surface extending from the foundation to the second roof portion 32. The second exterior wall 62 located in the west area 1b is positioned further north (indoors) than the first exterior wall 61 located in the east area 1a.

[0027] As shown in Figure 3, the entrance 11 is located in the overlapping area between the east area 1a and the central area 1c. The entrance 11 has an earthen floor section 11a and an entrance hall section 11b, which is located one step above the earthen floor section 11a. The floor level of the entrance hall section 11b is the same as the floor level of the entire first floor. A shoe closet is provided on the north side of the earthen floor section 11a, and family lockers are provided on the southwest side of the entrance hall section 11b.

[0028] The entrance hall 11b also functions as a corridor extending in the north-south direction, and the living / dining / kitchen area is located on the south side of the entrance hall 11b. This living / dining / kitchen area combines the functions of a living room 12, a kitchen 13, and a dining room 14 in one room. The majority of the living room 12 is located in the overlapping area between the western area 1b and the central area 1c. The kitchen 13 is located in the overlapping area between the eastern area 1a and the central area 1c. The dining room 14 is located in the overlapping area between the eastern area 1a and the southern area 1d.

[0029] On the east side of the northern end of the entrance hall 11b, there are provided a first staircase 41, a first toilet 15 located north of the first staircase 41, and a delivery space 16 located east of the first toilet 15. The first staircase 41, the first toilet 15, and the delivery space 16 are located in the overlapping area of ​​the east area 1a and the north area 1e. On the west side of the northern end of the entrance hall 11b, there is provided a washroom 17 and a bathroom 18 located west of the washroom 17. The washroom 17 and the bathroom 18 are located in the overlapping area of ​​the western area 1b and the northern area 1e.

[0030] The central area 1c is an area where the distance from the foundation to the roof 3 is equal to or greater than the predetermined distance, while the south side area 1d and the north side area 1e are areas where the distance from the foundation to the roof 3 is less than the predetermined distance. Therefore, the indoor space of the central area 1c can be set higher (the distance from the first floor floor to the second floor ceiling surface can be longer) than that of the south side area 1d or the north side area 1e.

[0031] In this embodiment, the living room 12 and kitchen 13 located in the central area 1c are high-ceiling rooms with ceiling heights set to a height (e.g., 3040 mm) higher than the ceiling height of 2.1 m that is recognized as a habitable room under the Building Standards Act. On the other hand, the ceiling height of the dining room 14 located in the south area 1d is set to a ceiling height of 2.1 m or higher that is recognized as a habitable room under the Building Standards Act, but is set lower than the ceiling height of the living room 12 and kitchen 13. In other words, the ceiling height of the dining room 14 is set to a normal ceiling height (e.g., 2.1 m to 2.5 m), while the ceiling heights of the living room 12 and kitchen 13 are set higher than the normal ceiling height. Additionally, the ceiling height of the rooms (such as the washroom 17 and bathroom 18) located in the north area 1e is also set to the normal ceiling height.

[0032] In this embodiment, the ceiling height of the first floor in the south area 1d (the ceiling height of the dining room 14) is set higher than the ceiling height of the first floor in the north area 1e (the ceiling height of the washroom 17, bathroom 18, etc.), and the ceiling height of the first floor in the central area 1c (the ceiling height of the living room 12, kitchen 13, etc.) is set higher than the ceiling height of the first floor in the south area 1d (the ceiling height of the dining room 14). Therefore, as shown in FIG. 5, the ceiling surface of the first floor in the south area 1d is located higher than the ceiling surface of the first floor in the north area 1e, but this is not limited to this. The ceiling surface of the first floor in the south area 1d and the ceiling surface of the first floor in the north area 1e may be located at the same height, or the ceiling surface of the first floor in the south area 1d may be located lower than the ceiling surface of the first floor in the north area 1e. That is, the ceiling surface of the first floor in the south area 1d only needs to satisfy the condition that it is located at a lower position than the ceiling surface of the first floor in the central area 1c.

[0033] As shown in Figures 3 and 5, a free living unit 12a is installed in a corner space (for example, the northwest space of the living room 12) of the living room 12. The free living unit 12a is designed so that the lower part can be used as a storage space and the upper part can be used as a split floor, for example. As mentioned above, the living room 12 is a high-ceilinged room, so even if the height of the lower part (storage space) of the free living unit 12a is set to a height that allows a person to walk or work while bending over, it is possible to ensure that the height of the upper part (skip floor) of the free living unit 12a is sufficiently high (for example, a height that allows a person to walk or work while standing). The height of the upper part (skip floor) of the free living unit 12a is not particularly limited, but is set to be equal to a normal ceiling height (for example, 2.1 m to 2.5 m).

[0034] The living room 12 is adjacent to the outdoor living room 10 via a second exterior wall 62 facing south. In this embodiment, the outdoor living room 10 is a terrace with a floor made of multiple deck materials. The height position of the upper surface (floor surface) of the floor portion of the outdoor living room 10 is set to be approximately the same as the height position of the floor surface of the living room 12 (i.e., the floor surface of the entire first floor). The outdoor living room 10 is located directly below the second floor balcony 20. The area above the outdoor living room 10 is open to the sky except for the area where the balcony 20 hangs.

[0035] An opening (lower opening 62a) is formed in the second exterior wall 62 provided between the living room 12 and the outdoor living room 10. The lower opening 62a is an opening / closing type French window and a fixed high window located above the French window. The outdoor living room 10 is provided so as to protrude from the second exterior wall 62, and people can freely move between the living room 12 and the outdoor living room 10 through a lower opening 62a.

[0036] Of the exterior walls located in the western area 1b, the third exterior wall 63 facing west has a first floor portion that protrudes south (towards the outdoors) further than the second exterior wall 62. Therefore, the outdoor living room 10 is sandwiched between the first floor portion of the third exterior wall 63 and the exterior wall located between the dining room 14 and the outdoor living room 10 (i.e., the fourth exterior wall 64 facing west among the exterior walls located in the east area 1a). The outdoor living room 10 is located between these left and right exterior walls, and the area of ​​the outdoor living room 10 is defined.

[0037] The building body 2 is provided with a first staircase 41 for going back and forth between the first and second floors. In this embodiment, the first staircase 41 is a return staircase that ascends from the west side to the east side and then from the east side to the west side. In the space below the first staircase 41, a delivery space 16 and a first toilet 15 are located.

[0038] Climbing the first staircase 41 leads to the second floor of the main building 2. In this embodiment, the floor surfaces of the first floor are all at the same height, whereas the floor surfaces of the second floor are at different heights in the central area 1c, the south area 1d, and the north area 1e. As described above, in this embodiment, the ceiling surface of the first floor in south area 1d is positioned higher than the ceiling surface of the first floor in north area 1e, and the ceiling surface of the first floor in central area 1c is positioned higher than the ceiling surface of the first floor in south area 1d, as shown in Figure 5. Accordingly, the floor surface of the second floor in south area 1d is positioned higher than the floor surface of the second floor in north area 1e, and the floor surface of the second floor in central area 1c is positioned higher than the floor surface of the second floor in south area 1d.

[0039] In this embodiment, the second floor surface in the south area 1d is located at a higher position than the second floor surface in the north area 1e, but this is not limited to this. The second floor surface in the south area 1d and the second floor surface in the north area 1e may be located at the same height, or the second floor surface in the south area 1d may be located at a lower position than the second floor floor surface in the north area 1e. In other words, the second floor floor surface only needs to satisfy the condition that the second floor surface in the south area 1d is located at a lower position than the second floor floor surface in the central area 1c.

[0040] In this embodiment, the ceilings on the first floor are all flat, while the ceilings on the second floor are divided into flat and sloped sections. Specifically, as shown in Figure 5, the ceilings on the second floor in the central area 1c are flat, while the ceilings on the second floor in the south area 1d and the north area 1e are sloped. The slope angle of the second floor ceiling (sloped ceiling) in the south area 1d is set equal to the slope angle of the south roof surface 3b. The slope angle of the second floor ceiling (sloped ceiling) in the north area 1e is set equal to the slope angle of the north roof surface 3c.

[0041] The ceiling height of the second floor in the central area 1c is set to, for example, a normal ceiling height (for example, 2.1 m to 2.5 m). The second floor ceiling in the south area 1d is a sloped ceiling that slopes downward toward the south, so the ceiling height is lowest at the southern end and highest at the northern end. The lowest ceiling height of the second floor ceiling height in the south area 1d (the ceiling height at the southern end) is set to a normal ceiling height (for example, 2.1 m to 2.5 m). The second floor ceiling in the north area 1e is a sloped ceiling that slopes downwards toward the north, so the ceiling height is lowest at the north end and highest at the south end. The lowest ceiling height of the second floor ceiling height in the north area 1e (the ceiling height at the north end) is set to a normal ceiling height (for example, 2.1m to 2.5m).

[0042] As shown in Figure 4, at the top of the first staircase 41, there is a first corridor 51 extending in the east-west direction. That is, the first staircase 41 is provided on the east side of the first corridor 51. The first corridor 51 is arranged across the overlapping area between the east side area 1a and the north side area 1e, and the overlapping area between the west side area 1b and the north side area 1e. A storeroom 51a and a sink 51b located west of the storeroom 51a are provided along the first corridor 51 on the south side of the first corridor 51. A second toilet 21 is provided on the west side of the first corridor 51. The storeroom 51a, sink 51b, and second toilet 21 are located in the overlapping area of ​​the western area 1b and the northern area 1e.

[0043] A second staircase 42 is provided on the south side of the eastern end of the first corridor 51. That is, the second staircase 42 is provided between the first staircase 41 and the storeroom 51a. The second staircase 42 is a straight staircase that ascends from the north side to the south side, and connects the second floor floor surface in the north area 1e and the second floor floor surface in the central area 1c, which have a difference in height. At the top of the second staircase 42, there is first a second corridor 52 extending in the north-south direction. That is, the second staircase 42 is provided on the north side of the second corridor 52.

[0044] An entrance (first room entrance 22b) leading to the first room 22 is provided at the south end of the second corridor 52. The first room 22 is a place where residents spend their daily lives and can be used as a master bedroom. The first room 22 is located across the overlapping area between the east area 1a and the central area 1c, and the overlapping area between the west area 1b and the central area 1c. A first closet 22a is provided in the first room 22. An entrance leading to the second room 23 is provided on the east side at the south end of the second corridor 52. The second room 23 is a place where residents spend their daily lives and can be used as a bedroom (children's room). The second room 23 is located in the overlapping area between the east area 1a and the central area 1c. The second room 23 is provided with a second closet 23a. An entrance leading to the third room 24 is provided on the western side at the southern end of the second corridor 52. The third room 24 is a place where residents spend their daily lives and can be used as a bedroom (children's room). The third room 24 is located in the overlapping area between the western area 1b and the central area 1c. The third room 24 is provided with a third closet 24a.

[0045] The first room 22 is equipped with a first closet 22a as a walk-in closet. The first closet 22a is provided in a corner space of the first room 22. Specifically, in this embodiment, the first closet 22a is provided in the southeast space of the first room 22. That is, the first closet 22a is located in the overlapping area between the east area 1a and the central area 1c. The first room 22 is provided with a first room entrance / exit 22b as an entrance / exit for entering and exiting the first room 22. In this embodiment, the first room entrance / exit 22b is an entrance / exit leading to the second corridor 52, and is an entrance / exit with fittings formed in the first inner wall 71 provided between the first room 22 and the second corridor 52 / third room 24. The first room 22 also has a first room internal passage 22c as a passageway connecting the second hallway 52 and the first closet 22a. The first room internal passage 22c is formed in a generally L-shape in a plan view, with a first room entrance / exit 22b provided on one end face of the first room internal passage 22c and an entrance / exit for the first closet 22a provided on the other end face of the first room internal passage 22c.

[0046] First room 22 is located across east area 1a and west area 1b, and first closet 22a and first room interior passage 22c are located in the area of ​​first room 22 located in east area 1a. Therefore, the area of ​​first room 22 that can be used as a bedroom (the area where a bed, etc., is installed) is the area of ​​first room 22 located in west area 1b.

[0047] A small room 25 is provided at the back of the first Western-style room 22. The small room 25 is located in the overlapping area between the east area 1a and the south area 1d. That is, the small room 25 is provided adjacent to the first closet 22a and above the dining room 14. The use of the small room 25 is not particularly limited, but it can be used as, for example, a telework room (home office, study, etc.) or a hobby room.

[0048] The small room 25 is provided with a small room entrance / exit 25a as an entrance / exit for entering and exiting the small room 25. In this embodiment, the small room entrance / exit 25a is an entrance / exit leading to the first room 22, and is formed in the second inner wall 72 provided between the small room 25 and the first room 22. Specifically, the small room entrance / exit 25a is provided on the south side at the other end (the end on the first closet 22a side) of the first room internal passage 22c. Therefore, the first Western-style room passage 22c can be used not only as a passage for moving between the area located in the western area 1b of the first Western-style room 22 (the area where beds, etc. are installed) and the second corridor 52, between the area located in the western area 1b of the first Western-style room 22 (the area where beds, etc. are installed) and the first closet 22a, and between the second corridor 52 and the first closet 22a, but also as a passage for moving between the small room 25 and the second corridor 52, between the small room 25 and the first closet 22a, and between the small room 25 and the area located in the western area 1b of the first Western-style room 22 (the area where beds, etc. are installed).

[0049] The small room 25 also has a third staircase 43, which starts from the small room entrance 25a. The third staircase 43 is a straight staircase that ascends from the south side to the north side, and connects the second floor floor of the south area 1d (the floor of the small room 25) with the second floor floor of the central area 1c (the floor of the first Western-style room 22), which are at different heights. The third staircase 43 is a staircase that starts at the small room entrance 25a, and at the top of the third staircase 43, the first room 22 (specifically, the first room interior passage 22c) is located first.

[0050] To go from the first floor of the main building 2 to the small room 25, one simply ascends the first staircase 41 and the second staircase 42, and then descends the third staircase 43. That is, a person on the first floor must ascend the first staircase 41 to enter the first corridor 51, then ascend the second staircase 42 to enter the second corridor 52, then enter the first room interior passage 22c of the first room 22 through the first room entrance 22b, then enter the third staircase 43 of the small room 25 through the small room entrance 25a, and finally descend the third staircase 43 to arrive on the floor of the small room 25.

[0051] As such, the small room 25 is located at the back of the first room 22 when viewed from rooms other than the first room 22 (living rooms, non-living rooms), and in order to get to the small room 25 from outside the first room 22 (from rooms other than the first room 22), one must pass through the first room 22. Therefore, compared to when the small room is located in front of the first room 22, the frequency with which people pass in front of the entrance (small room entrance 25a) can be reduced, ensuring an environment within the small room 25 that makes it easy to concentrate on work or hobbies. Furthermore, the small room 25 is not adjacent to any rooms other than the first room 22. In other words, the first room 22 is disposed between the small room 25 and any room other than the first room 22. Therefore, compared to when the small room is adjacent to any room other than the first room 22, the sound from any room other than the first room 22 can be reduced, ensuring an environment within the small room 25 that makes it easy to concentrate on work or hobbies.

[0052] Furthermore, small room 25 is a skip-down room in which the floor of small room 25 is lower than the floor of first room 22 adjacent to small room 25. Therefore, even without installing a fixture to open and close the entrance (small room entrance 25a), people standing in front of the entrance (small room entrance 25a) are less likely to be in view, and people standing in front of the entrance (small room entrance 25a) are less likely to be bothered by the gaze of others. Therefore, even without installing a fixture at small room entrance 25a, an environment within small room 25 that makes it easy to concentrate on work or hobbies can be ensured, and not installing a fixture at small room entrance 25a gives people in small room 25 a sense of openness.

[0053] The first room 22 is adjacent to the balcony 20 via the second exterior wall 62 facing south. The height position of the floor of the balcony 20 is set to be approximately equal to the height position of the floor of the first room 22 (the floor of the second floor in the central area 1c). The upper part of the balcony 20 is open to the sky except for the part covered by the roof 3. An opening (upper opening 62b) is formed in the second exterior wall 62 located between the first room 22 and the balcony 20. The upper opening 62b is a sliding window. Therefore, people can freely move between the first room 22 and the balcony 20 through the upper opening 62b.

[0054] Furthermore, a fourth opening 64a is formed in a fourth exterior wall 64 (i.e., the exterior wall facing west among the exterior walls arranged in the east area 1a) provided between the small room 25 and the balcony 20. The fourth opening 64a is a window formed at a position higher than the floor of the balcony 20. Therefore, the balcony 20 can be seen from inside the small room 25 through the fourth opening 64a, giving people in the small room 25 a sense of openness. Furthermore, by providing a flower box in the fourth opening 64a, people on the balcony 20 can enjoy nature while blocking their view. In the example shown in FIG. 4, the fourth opening 64a is a fixed window, but the present invention is not limited to this and may be a window that can be opened and closed.

[0055] The floor of the balcony 20 is located at approximately the same height as the floor of the first room 22. Therefore, the floor of the balcony 20 is located at a higher position than the floor of the small room 25 (the floor of the second floor in the south area 1d). Therefore, even if the fourth opening 64a is provided, people on the balcony 20 are less likely to be in view, and people on the balcony 20 are less likely to be bothered by others' gazes. Therefore, even if the fourth opening 64a is provided between the small room 25 and the balcony 20, an environment within the small room 25 that makes it easy to concentrate on work or hobbies can be ensured, and by providing the fourth opening 64a between the small room 25 and the balcony 20, a sense of openness can be provided to people in the small room 25.

[0056] [Second embodiment] Next, a second embodiment of the present invention will be described. For the sake of convenience, elements common to the first embodiment will be denoted by the same reference numerals and descriptions thereof will be omitted or simplified.

[0057] FIG. 6 is a plan view showing the second floor of the building 1 in the second embodiment. In the first embodiment, the small room entrance 25a for entering and exiting the small room 25 is an entrance leading to the first room 22. That is, the small room entrance 25a in the first embodiment is formed in the second inner wall 72 provided between the small room 25 and the first room 22, as shown in FIG. In contrast to this, in the second embodiment, the small room entrance 25a for entering and exiting the small room 25 is an entrance leading to the balcony 20.

[0058] Specifically, as shown in Fig. 6, the small room entrance 25a in the second embodiment is formed in a fourth outer wall 64 provided between the small room 25 and the balcony 20. That is, the fourth outer wall 64 in the second embodiment is provided with the small room entrance 25a instead of the fourth opening 64a. The small room entrance 25a in the second embodiment is an entrance with a fixture. That is, the small room entrance 25a in the second embodiment is fitted with an outdoor fixture such as a back door as a fixture for opening and closing the small room entrance 25a. Therefore, it is possible to freely move between the small room 25 and the balcony 20 through the small room entrance 25a.

[0059] The third staircase 43 in the second embodiment is a straight staircase that ascends from the east side to the west side, connecting the floor of the small room 25, which has a difference in height, with the floor of the balcony 20. The third staircase 43 is a staircase that starts from the small room entrance 25a, so at the top of the third staircase 43, the balcony 20 is located first.

[0060] In the present embodiment (see FIG. 6), as in the first embodiment (see FIG. 4), to go from the first floor of the main building 2 to the small room 25, one simply ascends the first staircase 41 and the second staircase 42 and then descends the third staircase 43. However, in the present embodiment, one does not travel directly between the first room 22 and the small room 25, but travels via the balcony 20. That is, after entering the first room 22 through the first room entrance / exit 22b, one does not travel along the first room interior passage 22c (towards the first closet 22a) to reach the small room 25, but rather deviates from the first room interior passage 22c, travels towards the balcony 20, and then travels via the balcony 20 to reach the small room 25.

[0061] Specifically, a person on the first floor goes up the first staircase 41 to enter the first corridor 51, then goes up the second staircase 42 to enter the second corridor 52, then goes through the first room entrance 22b to enter the first room internal passage 22c of the first room 22. Then, the person deviates from the first room internal passage 22c and heads toward the upper opening 62b provided between the first room 22 and the balcony 20, then goes through the upper opening 62b to enter the balcony 20, then goes through the small room entrance 25a to enter the third staircase 43 of the small room 25, and finally descends the third staircase 43 to arrive on the floor of the small room 25.

[0062] In this embodiment, as in the first embodiment, the small room 25 is located at the back of the first room 22 when viewed from rooms (living rooms and non-living rooms) other than the first room 22, and in order to get to the small room 25 from outside the first room 22 (from rooms other than the first room 22), one must pass through the first room 22. Therefore, compared to when the small room is located in front of the first room 22, the frequency with which people pass in front of the entrance (small room entrance 25a) can be reduced, and an environment within the small room 25 that makes it easy to concentrate on work or hobbies can be ensured. Furthermore, in the present embodiment, as in the first embodiment, the small room 25 is not adjacent to any rooms other than the first room 22. In other words, the first room 22 is disposed between the small room 25 and any rooms other than the first room 22. Therefore, compared to when the small room is adjacent to any rooms other than the first room 22, the sound from any rooms other than the first room 22 can be reduced, ensuring an environment within the small room 25 that makes it easy to concentrate on work or hobbies.

[0063] Furthermore, in this embodiment, as in the first embodiment, the floor of the small room 25 is lower than the floor of the first Western-style room 22 adjacent to the small room 25. That is, the floor of the small room 25 is lower than the floor of the balcony 20 adjacent to the small room 25. Therefore, for example, even if a fixture with a transparent portion is used to open and close the small room entrance 25a in order to make the small room 25 a room with an open feel, people on the balcony 20 are less likely to be visible and are less likely to be bothered by the gaze of people on the balcony 20. Therefore, even if the small room entrance 25a is provided between the small room 25 and the balcony 20, an environment within the small room 25 that is easy to concentrate on work or hobbies can be ensured. Furthermore, providing the small room entrance 25a between the small room 25 and the balcony 20 gives people in the small room 25 a sense of openness.

[0064] In this embodiment, unlike the first embodiment, to go to the small room 25 from outside the first room 22 (from a room other than the first room 22), one must first go out to the outdoor space (balcony 20). Therefore, a person going to the small room 25 can be given the feeling that they are going to a "detached room (detached tatami room, detached house)." In other words, although the small room 25 is provided in the building 1 (main house), it can be used as if it were a "detached room," and therefore a special feeling can be given to a person going to or staying in the small room 25.

[0065] In this embodiment, as shown in Figure 7(a), the height position of the floor surface of the balcony 20 is set to be approximately equal to the height position of the floor surface of the first room 22 (the floor surface of the second floor in the central area 1c), but this is not limited to this. For example, as shown in Figure 7(b), the floors of the balcony 20 may include a first floor 20a whose upper surface is at a height position approximately equal to the height position of the floor surface of the first room 22 (the floor surface of the second floor in the central area 1c), and a second floor 20b whose upper surface is at a height position approximately equal to the height position of the floor surface of the small room 25 (the floor surface of the second floor in the south area 1d).In addition, instead of the third staircase 43, a fourth staircase 44 may be provided which connects the upper surface (floor surface) of the first floor 20a and the upper surface (floor surface) of the second floor 20b, which have a difference in height. 7(c), the height position of the floor of the balcony 20 may be set to be approximately the same as the height position of the floor of the small room 25 (the floor of the second floor in the south area 1d), and a fifth staircase 45 may be provided in place of the third staircase 43, connecting the floor of the first room 22 (the floor of the second floor in the central area 1c), which has a difference in height, with the floor of the balcony 20. In other words, this fifth staircase 45 is a staircase whose descent point is an upper opening 62b provided between the first room 22 and the balcony 20.

[0066] 6, the second interior wall 72 (the interior wall provided between the small room 25 and the first room 22, which is parallel to the east-west direction) in this embodiment is closed. That is, in this embodiment, the small room 25 is not connected to the first room 22, but this is not limited to this. For example, an opening (interior window) may be provided in the second interior wall 72, and the small room 25 may be switched between a state where it is not connected to the first room 22 and a state where it is connected to the first room 22 by opening or closing the opening (interior window).

[0067] Furthermore, in this embodiment, a small room entrance / exit 25a that is high enough for a person to pass through while standing is formed in the fourth exterior wall 64 provided between the small room 25 and the balcony 20. Therefore, it is preferable to ensure privacy by, for example, making the handrail of the balcony 20 high (specifically, making it impossible to see inside the small room 25 from outside the building 1 through the small room entrance / exit 25a).

[0068] [Third embodiment] Next, a third embodiment of the present invention will be described. For the sake of convenience, elements common to the first embodiment will be denoted by the same reference numerals and descriptions thereof will be omitted or simplified.

[0069] Fig. 8 is a plan view showing the first floor of the building 1 in the third embodiment. Fig. 9 is a plan view showing the second floor of the building 1 in the third embodiment. Fig. 10 is a perspective view showing the inside of a small room 25 in the third embodiment. In the first embodiment, the living room 12 and the kitchen 13 are arranged below the first room 22, and the dining room 14 is arranged below the small room 25. In contrast, in the third embodiment, a carport 80 and a bathroom 18 are arranged below the first room 22, and a dirt floor storage area 81 is arranged below the small room 25.

[0070] Specifically, as shown in Fig. 8, the building 1 of the third embodiment includes a carport (built-in garage) 80 provided in the main building body 2, and a dirt floor storage area 81 provided in the southeast part of the main building body 2. The carport 80 occupies most of the first floor of the main building body 2. On the west side of the carport 80, the entrance 11 and the third corridor 53 are provided, and on the south side of the carport 80, the washroom 17, the bathroom 18, and the dirt floor storage area 81 are provided.

[0071] The entrance 11 is located in the northwest part of the building main body 2. The entrance 11 has an earthen floor section 11a and an entrance hall section 11b located one step above the earthen floor section 11a. The height position of the floor surface in the entrance hall section 11b is set to be equal to the height position of the floor surface of the entire first floor (excluding the carport 80 and the earthen floor storage section 81). The height position of the floor surface in the carport 80 is set lower than the height position of the floor surface in the earthen floor section 11a. The height position of the floor surface in the earthen floor storage section 81 is set to be approximately equal to the height position of the floor surface in the carport 80.

[0072] On the south side of the western end of the entrance hall 11b, there are provided a first staircase 41 for going back and forth between the first and second floors, an under-stairs storage area 19 that utilizes the space below the first staircase 41, and a first toilet 15 located on the south side of the under-stairs storage area 19. The first toilet 15 is located in the southwest part of the main building 2. A third corridor 53 extending in the north-south direction is provided on the south side of the eastern end of the entrance hall 11b. That is, the entrance 11 is provided on the north side of the third corridor 53. A service door 82 is provided on the southern end face of the third corridor 53. A first toilet 15 is provided on the west side of the southern end of the third corridor 53. A washroom 17, a bathroom 18 located east of the washroom 17, and a dirt floor storage area 81 located east of the bathroom 18 are provided on the east side of the southern end of the third corridor 53. The dirt floor storage area 81 is located in the southeast part of the building main body 2.

[0073] The dirt floor storage area 81 is located on the east side of the bathroom 18, adjacent to the bathroom 18. The dirt floor storage area 81 is also located on the south side of the carport 80, adjacent to the carport 80. The earthen floor storage section 81 is provided with an earthen floor storage section entrance / exit 81a as an entrance / exit for entering and exiting the earthen floor storage section 81. In this embodiment, the earthen floor storage section entrance / exit 81a is an entrance / exit leading to the carport 80. Therefore, it is possible to freely move between the earthen floor storage section 81 and the carport 80 through the earthen floor storage section entrance / exit 81a.

[0074] The height position of the ceiling surface at the entrance 11 (earthen floor section 11a, entrance hall section 11b) is set to be equal to the height position of the ceiling surface of the entire first floor (excluding the carport 80 and earthen floor storage section 81). In other words, the ceiling height of the entrance hall section 11b is equal to the ceiling height of the entire first floor (excluding the carport 80 and earthen floor storage section 81). The ceiling height of the entrance hall section 11b is set to, for example, a normal ceiling height (for example, 2.1 m to 2.5 m). The height position of the ceiling surface of the carport 80 is set to be equal to the height position of the ceiling surface of the entire first floor (excluding the carport 80 and the earthen floor storage area 81). In other words, the ceiling height of the carport 80 is higher than the ceiling height of the entire first floor (excluding the carport 80 and the earthen floor storage area 81). The height position of the ceiling surface in the dirt floor storage area 81 is set lower than the height position of the ceiling surface in the carport 80. In other words, the ceiling height of the dirt floor storage area 81 is lower than the ceiling height of the carport 80. The ceiling height of the dirt floor storage area 81 is set to, for example, a normal ceiling height (for example, 2.1 m to 2.5 m).

[0075] Climbing the first staircase 41 leads to the second floor of the main building 2. In this embodiment, the first staircase 41 is a straight staircase that ascends from the north side to the south side. At the top of the first staircase 41, a staircase hall section 46 is provided. That is, the first staircase 41 is provided on the north side of the staircase hall section 46. A second toilet 21 is provided on the south side of the staircase hall 46. A kitchen 13 is provided on the north side of the first staircase 41. That is, the second toilet 21 is located in the southwest part of the main building 2, and the kitchen 13 is located in the northwest part of the main building 2. To the east of the kitchen 13, first staircase 41, staircase hall 46, and second toilet 21, there is a living / dining room (living room 12 and dining room 14) that is continuous with the staircase hall 46. In other words, the living / dining room (living room 12 and dining room 14) is formed long in the north-south direction and is arranged from the southern end to the northern end of the main building 2.

[0076] The living / dining room (living room 12 and dining room 14) is adjacent to the balcony 20 via the south-facing exterior wall (fifth exterior wall 65) of the building main body 2. The height position of the floor surface of the balcony 20 is set to be approximately the same as the height position of the floor surface of the living / dining room (living room 12 and dining room 14). An opening (fifth opening 65a) is formed in the fifth exterior wall 65 provided between the living / dining room (living room 12 and dining room 14) and the balcony 20. The fifth opening 65a is a French window. Therefore, it is possible to freely move between the living / dining room (living room 12 and dining room 14) and the balcony 20 through the fifth opening 65a.

[0077] A first room 22 is provided on the southeast side of the living / dining room (living room 12 and dining room 14). The first room 22 is provided with a first closet 22a. A second Western-style room 23 is provided on the northeast side of the living / dining room (living room 12 and dining room 14). A second closet 23a is provided in the second Western-style room 23.

[0078] The first room 22 is equipped with a first closet 22a as a walk-in closet. The first closet 22a is provided in a corner space of the first room 22. Specifically, the first room 22 in this embodiment is a room that is approximately L-shaped in plan view with a protruding southwest portion, and the first closet 22a is provided in this protruding southwest portion (the southwest space of the first room 22). In other words, the first closet 22a is provided above the bathroom 18, and the rest of the first room 22 other than the first closet 22a is provided above the carport 80. The first room 22 is provided with a first room entrance / exit 22b as an entrance / exit for entering and exiting the first room 22. In this embodiment, the first room entrance / exit 22b is an entrance / exit leading to the living / dining room (living room 12 and dining room 14), and is an entrance / exit with fittings formed in the third inner wall 73 provided between the first room 22 and the living / dining room (living room 12 and dining room 14).

[0079] A small room 25 is provided at the back of first room 22. Small room 25 is located in the southeast part of building main body 2. That is, small room 25 is provided on the east side of first closet 22a, adjacent to first closet 22a, and above dirt floor storage area 81. As described above, in this embodiment, the height position of the ceiling surface of the carport 80 is set to be equal to the height position of the ceiling surface of the entire first floor (excluding the carport 80 and the earthen floor storage area 81), and the height position of the ceiling surface of the earthen floor storage area 81 is set to be lower than the height position of the ceiling surface of the carport 80. In other words, the ceiling surface of the earthen floor storage area 81 is located at a lower position than the ceiling surface of the carport 80 and the ceiling surface of the entire first floor (excluding the carport 80 and the earthen floor storage area 81). Accordingly, the floor surface of the small room 25 located above the earthen floor storage area 81 is located at a lower position than the floor surface of the entire second floor (excluding the small room 25). In other words, the floor surface of the small room 25 is a skip-down room in which the floor surface of the small room 25 is located at a lower position than the floor surface of the first Western-style room 22 adjacent to the small room 25.

[0080] The small room 25 has a small room entrance / exit 25a as an entrance / exit for entering and exiting the small room 25. In this embodiment, the small room entrance / exit 25a is an entrance / exit leading to the first room 22 (specifically, the part of the first room 22 other than the first closet 22a), and is formed in the second inner wall 72 provided between the small room 25 and the first room 22. The small room 25 also has a third staircase 43, which starts from the small room entrance 25a. The third staircase 43 is a straight staircase that ascends from the south side to the north side, and connects the floor of the small room 25 and the floor of the first room 22, which have different heights. The third staircase 43 is a staircase that starts at the small room entrance 25a, so at the top of the third staircase 43, the first thing you will find is the first room 22 (specifically, the part of the first room 22 other than the first closet 22a).

[0081] As shown in Figures 9 and 10, an opening (second opening 72a) is formed in the second interior wall 72 of this embodiment (an interior wall provided between the small room 25 and the first room 22, which is parallel to the east-west direction). The second opening 72a is a window formed at a position higher than the floor of the small room 25 and lower than the floor of the first room 22 and the ceiling of the carport 80. Therefore, the space below the first room 22 (inside the carport 80) can be seen from inside the small room 25 through the second opening 72a. In the example shown in FIG. 10, the second opening 72a is a fixed window, but is not limited to this and may be a window that can be opened and closed.

[0082] 10, the height position of the ceiling surface of the small room 25 is set to be equal to the height position of the ceiling surface of the first room 22, but this is not limited to this. For example, the ceiling surface of the small room 25 may be located at a lower position than the ceiling surface of the first room 22. The ceiling height of the small room 25 may be set to a normal ceiling height (for example, 2.1 m to 2.5 m), or may be set to be higher than the normal ceiling height. The ceiling height of the entire second floor (excluding the small room 25) is set to, for example, a normal ceiling height (for example, 2.1 m to 2.5 m). Note that the ceiling height of the entire second floor (excluding the small room 25) may be the same or different.

[0083] In this embodiment (see FIG. 9), as in the first embodiment (see FIG. 4), to go from the first floor of the main building 2 to the small room 25, one simply goes up the first staircase 41 and then down the third staircase 43. That is, a person on the first floor goes up the first staircase 41 to enter the staircase hall 46, then crosses the living / dining room (living room 12 and dining room 14) and heads toward the first room doorway 22b, then goes through the first room doorway 22b to enter the first room 22 (specifically, the part of the first room 22 other than the first closet 22a), then goes through the small room doorway 25a to enter the third staircase 43 of the small room 25, and finally descends the third staircase 43 to arrive on the floor of the small room 25.

[0084] In this embodiment, as in the first embodiment, the small room 25 is located at the back of the first room 22 when viewed from rooms (living rooms and non-living rooms) other than the first room 22, and in order to get to the small room 25 from outside the first room 22 (from rooms other than the first room 22), one must pass through the first room 22. Therefore, compared to when the small room is located in front of the first room 22, the frequency with which people pass in front of the entrance (small room entrance 25a) can be reduced, and an environment within the small room 25 that makes it easy to concentrate on work or hobbies can be ensured. Furthermore, in the present embodiment, as in the first embodiment, the small room 25 is not adjacent to any rooms other than the first room 22. In other words, the first room 22 is disposed between the small room 25 and any rooms other than the first room 22. Therefore, compared to when the small room is adjacent to any rooms other than the first room 22, the sound from any rooms other than the first room 22 can be reduced, ensuring an environment within the small room 25 that makes it easy to concentrate on work or hobbies.

[0085] Furthermore, in this embodiment, as in the first embodiment, the floor of the small room 25 is located at a lower position than the floor of the first room 22 adjacent to the small room 25. Therefore, even without installing a fixture to open and close the entrance (small room entrance 25a), people standing in front of the entrance (small room entrance 25a) are less likely to be visible, and people standing in front of the entrance (small room entrance 25a) are less likely to be bothered by the gaze of others. Therefore, even without installing a fixture at the small room entrance 25a, an environment within the small room 25 that makes it easy to concentrate on work or hobbies can be ensured, and not installing a fixture at the small room entrance 25a gives people in the small room 25 a sense of openness.

[0086] In this embodiment, unlike the first embodiment, a window (second opening 72a) is formed in the second interior wall 72 (an interior wall between the small room 25 and the first room 22, which is parallel to the east-west direction). This window (second opening 72a) is located higher than the floor of the small room 25 and lower than the floor of the first room 22 and the ceiling of the carport 80. Therefore, the space below the first room 22 (inside the carport 80) can be seen from within the small room 25 through the window (second opening 72a), providing a sense of openness to those in the small room 25. Furthermore, items stored in the carport 80 (such as automobiles, motorcycles, and bicycles) can be viewed from within the small room 25 through the window (second opening 72a), providing a sense of satisfaction to those in the small room 25, especially if their hobbies include automobiles, motorcycles, and bicycles.

[0087] In this embodiment, a staircase connecting the small room 25 to the first floor may be provided in addition to the first staircase 41 and the third staircase 43. Specifically, for example, a staircase connecting the small room 25 to the carport 80 (or the earthen floor storage area 81) may be provided in addition to the first staircase 41 and the third staircase 43. Alternatively, a staircase connecting the small room 25 to the bathroom 18 (or the washroom 17) may be provided in addition to the first staircase 41 and the third staircase 43. If a staircase is provided connecting the small room 25 to the carport 80 (or the earthen floor storage area 81), the small room 25 can be used as a SOHO space or a lounge space, for example. Also, a mini kitchen or the like may be installed in the small room 25. When a staircase is provided connecting the small room 25 and the bathroom 18 (or the washroom 17), for example, a sauna can be installed in the small room 25, and the small room 25 can be used as a hobby room.

[0088] Furthermore, if a staircase connecting the small room 25 to the first floor is provided in addition to the first staircase 41 and the third staircase 43, the first staircase 41 may be provided but the third staircase 43 may not be provided. In other words, it may be possible to prevent movement between the small room 25 and the first room 22, so that the small room 25 can be accessed from the first floor but not from the second floor. Similarly, in the first and second embodiments, a staircase connecting the small room 25 to the first floor may be provided in addition to the first staircase 41, the second staircase 42, and the third staircase 43.

[0089] [effect] According to each of the above embodiments, the following excellent effects are achieved. The building 1 of the first, second, and third embodiments is a building comprising a first room (first room 22) and a second room (small room 25), the first room being a living room adjacent to the second room and comprising a first entrance (first room entrance 22b) for entering the first room from outside the first room, and the second room being a skip-down room whose floor is lower than the floor of the first room and comprising a second entrance (small room entrance 25a) for entering the second room. In the building 1, a route R for going from outside the first room to the second room is formed, which runs from the first entrance through the first room to the second entrance.

[0090] In this way, to get from outside the first room (first Western-style room 22) to the second room (small room 25), one must pass through the first room. In other words, because the second room is located at the back of the first room, the frequency with which people pass in front of the second entrance (small room entrance / exit 25a) can be reduced compared to when the second room is located in front of the first room. Therefore, by using the second room as a telework room, it is possible to ensure a telework room that provides an environment where users can easily concentrate on their work. The first room is not limited to a bedroom (first Western-style room 22), but may be any living room (bedroom, living room, dining room, kitchen, etc.). In other words, the first room may be any room that is continuously used for living, working, working, meeting, recreation, or other similar purposes. Furthermore, the first room does not have to be a living room adjacent to the second room, i.e., the first room does not have to be adjacent to the second room, or may be a non-living room.

[0091] In the building 1 of the first and third embodiments, the second entrance (small room entrance 25a) is an entrance for entering the second room (small room 25) from the first room (first room 22). As shown in Figures 4 and 9, the route R is a route that runs from the first entrance (first room entrance 22b) to the second entrance, passing only through the first room. That is, direct movement between the second room (small room 25) and the first room (first room 22) is possible via the second entrance (small room entrance 25a). Therefore, by using the second room as a telework room exclusively for the user of the first room, it is possible to ensure a telework room with a user-friendly environment for that user.

[0092] In the building 1 of the second embodiment, the second entrance (small room entrance 25a) is an entrance for entering the second room (small room 25) from the balcony 20. As shown in Fig. 5, the route R is a route that runs from the first entrance (first room entrance 22b) through the first room (first room 22) and the balcony 20 to the second entrance. That is, to go from outside the first room (first Western-style room 22) to the second room (small room 25), one must first go out onto the balcony 20 (outdoor space). Therefore, although the second room is located in the building 1 (main house), it can be used as if it were a "detached" room, which gives a special feeling to those who go to or are in the second room.

[0093] The building 1 of the third embodiment can also be configured as shown in Fig. 11. Specifically, for example, the small room entrance 25a can be provided in the fifth exterior wall 65 facing south, and the balcony 20 can be extended to a position south of the small room 25, allowing access between the small room 25 and the balcony 20 via the small room entrance 25a.

[0094] In the example shown in Figure 11, the first room (living room) is the living / dining room (living room 12 and dining room 14) rather than the first Western-style room 22. Also, in the example shown in Figure 11, the first entrance is not the first Western-style room entrance / exit 22b but the staircase hall 46 through which one passes when entering the living / dining room 12, 14 from outside (for example, the first floor). Specifically, in the example shown in Figure 11, the small room entrance / exit 25a (second entrance) is an entrance for entering the small room 25 (second room) from the balcony 20, and the route R is a route that runs from the staircase hall section 46 (first entrance), through the living / dining room 12, 14 (first room) and the balcony 20, to the small room entrance / exit 25a (second entrance), as shown in Figure 11.

[0095] In addition, in the building 1 of the third embodiment, the second room (small room 25) has a window (second opening 72a) located at a position lower than the floor of the first room (first Western-style room 22), and through this window, the floor directly below (first floor) on which the first room is located can be seen from within the second room. Therefore, the floor below (first floor) can be seen from inside the second room (small room 25) through the window (second opening 72a), which gives a sense of openness to people in the second room.

[0096] In addition, in the building 1 of the third embodiment, a garage (carport 80) is provided on the floor directly below (first floor), and the inside of the garage can be seen from inside the second room (small room 25) through a window (second opening 72a). Therefore, if a car or the like is parked in the garage (carport 80), the car or the like can be viewed from inside the second room (small room 25) through the window (second opening 72a), so the second room can be suitably used not only as a telework room but also as a hobby room.

[0097] The building 1 of the first and second embodiments can also be configured as shown in Figure 12, for example. That is, a window (second opening 72a) may be provided in the second room (small room 25) at a position lower than the floor of the first room (first Western-style room 22), so that the floor directly below the floor on which the first room is located (the first floor) can be viewed from within the second room through the window. In the first and second embodiments, the kitchen 13 is provided directly below the first room (first Western-style room 22), so that the kitchen 13 can be viewed from within the second room (small room 25) through the window (second opening 72a).

[0098] In addition, in the building 1 of the first and second embodiments, a sloped roof (roof 3) is provided on the building main body 2, and has: a first roof portion 31 which has a long length from the ridge portion 3a to the first eaves portion 31a; and a second roof portion 32 which is adjacent to the first roof portion 31 and is integrally formed with it to form the same roof surface, and which has a short length from the ridge portion 3a to the second eaves portion 32a; and the second room (small room 25) is located at the position closest to the first eaves portion 31a among the rooms located directly below the first roof portion 31.

[0099] Therefore, although it depends on the angle of inclination of the sloping roof (roof 3), the length of first roof portion 31 (the length from ridge 3a to first eaves portion 31a), and the difference in size between first roof portion 31 and second roof portion 32 (the difference in size between the length from ridge 3a to first eaves portion 31a and the length from ridge 3a to second eaves portion 32a), the second room (small room 25) is located closest to first eaves portion 31a among the rooms located directly below first roof portion 31, and therefore is likely to have a lower ceiling height than the other rooms located directly below first roof portion 31 and the rooms located directly below second roof portion 32. On the other hand, since the second room is a skip-down room in which the floor of the second room is lower than the floor of the first room (first Western-style room 22), it is easy to ensure a ceiling height sufficient for a telework room even if the ceiling height is lower than that of the first room.

[0100] Furthermore, in recent years, there has been a demand for the realization of a carbon-neutral society by promoting carbon neutrality, which reduces carbon dioxide emissions to virtually zero, and for the achievement of the SDGs (Sustainable Development Goals), and in the construction industry, efforts are being made to build buildings using wood, which has low carbon dioxide emissions. The building 1 in each of the above embodiments is a wooden detached house, and therefore can contribute to the realization of a carbon-neutral society by promoting carbon neutrality and the achievement of the SDGs. [Explanation of symbols]

[0101] 1. Building 2. Main building 3 Roof (sloped roof) 3a ridge part 20 Balcony 22 First Western-style Room (First Room) 22b First western entrance / exit (first entrance) 25 Small Room (Second Room) 25a Small room entrance (second entrance) 31 First roof section 31a First eaves 32 Second roof section 32a Second eaves 72a Second opening (window) 80 Carport (Garage) R Route

Claims

1. A building comprising a first room and a second room, the first room is a living room adjacent to the second room and includes a first entrance for entering the first room from outside the first room; the second room is a skip-down room in which the floor of the second room is lower than the floor of the first room, and is provided with a second entrance for entering the second room; A building characterized in that a route for getting from outside the first room to the second room is formed from the first entrance, through the first room, and to the second entrance.

2. 2. The building according to claim 1, The building is characterized in that the second entrance is an entrance for entering the second room from the first room.

3. 2. The building according to claim 1, the second entrance is an entrance for entering the second room from the balcony, The building is characterized in that the route is a route from the first entrance, through the first room and the balcony, to the second entrance.

4. 2. The building according to claim 1, the second room has a window provided at a position lower than the floor of the first room, A building characterized in that the floor directly below the floor on which the first room is located can be seen from within the second room through the window.

5. 5. The building according to claim 4, A garage is provided on the floor directly below, A building characterized in that the inside of the garage can be seen from inside the second room through the window.

6. 2. The building according to claim 1, A sloped roof is provided on the building body, and includes a first roof section that is set to have a long length from the ridge to the first eaves, and a second roof section that is adjacent to the first roof section and is integrally formed with the first roof section to form the same roof surface, and that is set to have a short length from the ridge to the second eaves, A building characterized in that the second room is located closest to the first eaves portion among the rooms located directly under the first roof portion.

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