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A Deep Roofline Shapes This Hillside Home in Osaka

09.01.26 | By
A Deep Roofline Shapes This Hillside Home in Osaka

The eaves at Moment project six feet from the wall line and run unbroken around all four sides of the house, a depth carried by a two-story timber frame on a hillside site in Sakai City, Osaka. Satoshi Kurosaki of APOLLO Architects & Associates designed the 2,300-square-foot residence with a frame engineered by Motoi Nomura Structures. That expansive overhang, together with the wall surrounding the property, guides the architecture of the rest of the residence.

Modern house with large glass walls and a flat wooden roof, illuminated interior visible at dusk, surrounded by trees.

Photography by Masao Nishikawa

A retaining wall and perimeter enclosure conceal the interior from the sloping street below, so privacy is handled at the boundary rather than at the window. The eaves, meanwhile, prevent direct sun on the south elevation and rain on the glazing.

A modern black building with large windows is surrounded by traditional houses in a densely populated urban neighborhood.

Photography by Masao Nishikawa

Past the entrance gate, the architecture switches from seclusion to openness through an entry where lacquerware, woodwork, bonsai, and artworks are arranged like an exhibition.

A person walks on a sunlit wooden deck outside a modern house with large floor-to-ceiling windows and a bright, open living space inside.

Photography by Masao Nishikawa

Walnut boards line the underside of the eaves, illuminated by lighting designer Ken Okamoto of Ripple Design. After dark, the lit soffit emphasizes the depth of the structure and defines the house at night.

Modern house with large glass walls, wood ceiling, open living area, and staircase visible at dusk. Indoor and outdoor spaces are illuminated.

Photography by Masao Nishikawa

A dry garden of vintage olive trees and other plantings surrounds the residence at ground level. Outdoor furniture sits beneath the eaves, sheltered from the elements but positioned to take advantage of the site’s elevation.

Modern interior with wooden floors and ceiling, large windows, a staircase with glass railing, a beige wall, and a sofa by the window overlooking houses outside.

Photography by Masao Nishikawa

Inside, that balance between enclosure and openness continues. The staircase runs along the windows and serves as a sculptural object while marking the shift between floors; it lands on a second-floor library, where a built-in sofa bench turns the landing into a second living area with its own view.

A modern living room with wood floors and ceiling, large glass windows, a floating staircase, and a person standing near the glass wall.

Photography by Masao Nishikawa

Two children’s rooms open onto a shared cantilevered balcony and can be combined or divided with movable partitions, allowing the space to change as the family’s needs do.

A person stands on a wooden deck outside a modern house with large glass windows at dusk, surrounded by trees and outdoor lighting.

Photography by Masao Nishikawa

Throughout Moment, the oversized eaves do more than give the house its defining silhouette. Together with the perimeter wall, they create layers of shelter and privacy without closing the residence off from its surroundings. The result is a house that feels protected at its edges while remaining open to the garden, views, and changing light beyond them.

Leo Lei is the founder and editor of Leibal, a publication dedicated to minimalist design, architecture, and interiors. Through his writing and curatorial eye, he highlights thoughtful contemporary work from around the world.