Yodogawa Ward, Osaka. Amid an urban fabric of large condominium and office buildings alongside small-to-medium detached houses and shops—an environment convenient for transport yet challenging for securing daylight and privacy—a single dwelling that remained from a prewar row-house block stood in the gap between larger buildings. The project replaces that house with a complete rebuild. The long, narrow rectangular site was divided into a 2 × 4 grid—eight units in total—each roughly the size of 4.5 tatami mats. Program elements were allocated as three principal 'spaces'—a doma (entry/garage room), the mother's bedroom, and the parent-child living room—together with two broad engawa (veranda-like circulation spaces), a kitchen, a bathroom, and a sanitary area. These were arranged with attention to efficient circulation, cross-ventilation, daylighting, and privacy. The spaces are connected or separated by the opening and closing of doors (referred to as 'mado' or room-doors) tailored to each frontage; these 'mado' support daily life by acting as discrete thresholds that switch on or off the spatial relationships the moment a certain limit is crossed, avoiding ambiguous intermediate buffer zones.
Household composition: One male occupant and his mother. Structural system/scale: Two-story timber construction. Use: Detached single-family residence. Site area: 22 tsubo (73 m²). Gross floor area: 23 tsubo (81 m²). Construction floor area: 25 tsubo (110 m²). Design and supervision: Yoshihiro Yamamoto and Minami Ohtake [yyaa]. Construction: [Sunfield Architectural Workshop]. Steel door: [Tokuzawa Ironworks]. Nameplate hardware: [bowlpond].