This residence is built on a site that overlooks the townscape and mountain ranges to the north from an elevated position. Instead of the conventional south-facing arrangement, the living-dining-kitchen (LDK) and study areas were placed along a large north-facing window to take advantage of the unique views offered by this plot. The steady, soft light entering through the north window and the expansive spatial quality distributed throughout the house via the double-height void incorporate the seasonal landscape into everyday life. A bouldering wall, horizontal ladder (monkey bars), and skip floor were provided to create a living environment where children can play and grow. The house achieves high airtightness and high thermal insulation performance and has been certified at the Standard Level under the "Sapporo Next-Generation Housing" scheme, reconciling northern-climate comfort with a rich living experience.
Use: Residential
Building area: 70.22 m² (21.24 tsubo)
Total floor area: 125.42 m² (37.94 tsubo)
Construction: Assist Kikaku Co., Ltd.
Electrical work: Shinwa Co., Ltd.
Mechanical/plumbing work: Sapporo Nipro Co., Ltd. / Ono Setsubi Co., Ltd.
Built-in furniture & fittings: Shoryu Mokko Co., Ltd.
Wooden entrance door: m.a.p
External joinery: resin sashes (triple glazing with Low-e coatings on both faces)
Heating: LPG gas Eco-Jozu — underfloor heating, central heating / hydronic panel heaters
Domestic hot water: LPG gas Eco-Jozu
Lighting: LED lighting
Flooring: Solid birch (kaba) flooring with oil finish (Wood Inoue)
Interior walls & ceilings: natural paint over paper wallpaper (Ogafaser + Dubron) / Shina plywood sheathing / exposed columns and beams
Exterior cladding: SGL steel standing-seam cladding (Hokkai Koki) / Todomatsu tongue-and-groove boarding
Roof: PVC sheet waterproofing
Thermal insulation performance (average heat transfer coefficient of the building envelope UA): 0.26 W/(m²·K)
Airtightness (equivalent leakage area C): 0.4 cm²/m²
Primary energy consumption: Grade 5
Certification: Sapporo Next-Generation Housing (Standard Level)
Financial planning: Sapporo Housing FP Consultation Desk