折叠屋顶住宅丨日本静冈丨ISHIZAKI ARCHITECTS

Architects:ISHIZAKI ARCHITECTS

Area:79m²

Year:2024

Lead Architects:Tetsuya Ishizaki, Rumiko Ishizaki

Category:Houses

Lead Team:ISHIZAKI ARCHITECTS

Design Team:Tetsuya Ishizaki, Rumiko Ishizaki

Engineering & Consulting > Structural:Naotake Koyama Structural Engineering

General Contractor:ONODA SANGYO

City:Shizuoka

Country:Japan

Text description provided by the architects. This residence is located in a residential area of Shimizu Ward, Shizuoka City. Low-rise houses and a three-story office building, with an elementary school across the road to the south, surround the site. The plan places an L-shaped building at the site's center, with a parking lot facing the southern road and a garden to the north. A large roof spanning both interior and exterior spaces was designed to envelop the entire site, aiming to create expansive and deep spatial qualities. The garden functions as an open "blank space" accessible to the neighborhood, guiding light and wind toward the surrounding homes.

The large roof structure spans the L-shaped plan, bending and folding as it extends, with its components mutually supporting each other to form the structure. This roof shape disperses the building's spatial orientation while ensuring it presents a non-intimidating presence to the surroundings and avoids casting shadows on neighboring properties. Elevating the ground level above the road surface prepares for flooding while also shifting the sightlines between passersby and residents.

Viewed from the south road, it appears as a single-story gable-roofed structure with low eaves, yet the use of different roof pitches secures the volume of a two-story building. Passing through the gap between the house and the neighbor from the entrance approach reveals the garden, which becomes a more secluded space protected from surrounding views the further one goes. A wall was deliberately omitted along the boundary with the familiar western neighbor, fostering a loosely connected relationship mediated by the garden.

The continuous interior space features diagonal ridge beams that guide the gaze diagonally into the depth, creating a sense of greater spatial extension than exists. While fully opening to the garden, the large roof shields against views and sunlight, imparting a sense of calm. The large roof, cantilevered 2.7 meters via truss framing, incorporates slits. These deliver light with varying expressions under the eaves and indoors, changing with time and season.

Standing on the balcony accessible from the second-floor hall, one can glimpse the elementary school's cherry blossoms, surrounding greenery, and distant mountains through the slits, as if they were peeking out. The folded roof adjusts the sense of distance from the external environment, creating a rich, comfortable, and generously spacious living area despite its compact size.

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