Voids and Vertical Space Reinterpret Traditional Japanese Machiya in Tokyo

In Tokyo's Kagurazaka district, Takumi Wakui + Riho Wakui Architects have designed a four-story wooden home on a compact 33 sqm plot, reimagining the classic Japanese machiya into a vertical living space for an architect couple. This innovative design promotes natural light, ventilation, and openness amidst a densely populated area. The location's heritage dates back to the Edo period, featuring narrow-fronted townhouses. The residence is vertically arranged, with each floor serving a specific purpose, transitioning from communal to private spaces. Voids visually link the levels, while generous openings invite sunlight and views of greenery. Projecting side walls protect the interior from direct sunlight and harness breezes. Stability and flexibility are achieved through a truss and double-wall spine structural system.