This residence rethinks how architecture can inhabit a steep urban terrain.
On a site with a 4.9-meter elevation change, the reinforced concrete structure itself resists earth pressure, eliminating the need for a retaining wall. In doing so, the building becomes both structure and landscape—merging construction with the formation of terrain.
The volume is carefully segmented and gently offset to reduce visual mass, forming a façade that responds to the surrounding low-rise neighborhood. The approach extends the slope of the street into the site, leading through a sequence of compression and release toward a living room that opens onto the garden.
Inside, a spiral spatial configuration organizes stacked platforms around a central living core, integrating structure and circulation into a continuous experience. A reinforced concrete frame with flattened columns integrated into thickened walls eliminates protruding structural elements, allowing the walls to function as both spatial boundaries and thermal mass. This system enables cantilevered slabs and generous openings while maintaining structural clarity.
An external insulation system enhances the thermal performance of the exposed concrete, stabilizing indoor temperatures and reducing energy demand. The basement, designed as a garage, can flexibly transform into a shop, studio, or secondary dwelling—accommodating future shifts in lifestyle and urban context.
Rooted in the Japanese notions of path and terrace, the project integrates structure and terrain, light and time, architecture and landscape—proposing a way of building that does not conquer the land, but dwells within its rhythm.