‘boxhouse 134’ by KAZUHIKO NAMBA+KAI WORKSHOP in kunitachi city, japan all images courtesy KAZUJIKO NAMBA+KAI WORKSHOP image © hiroshi ueda

tokyo-based architecture firm KAZUHIKO NAMBA+KAI WORKSHOP has completed ‘boxhouse 134’, a small dwelling for a family of three in kunitachi city, a western suburb of tokyo. making the most of the limited square footage of the site, the compact design utilizes differences in levels within the same storey to create definition without the aid of a full partition wall.

KAZUHIKO NAMBA+KAI WORKSHOP: boxhouse 134 street elevationimage © hiroshi ueda

stepped back from the plot line, the design provides a small parking space to the front with a relatively wide gap between adjacent buildings to ensure natural lighting and cross ventilation. a small outdoor terrace situated deep within the nook serves as an extension of the kitchen and dining area within. from the street, the house reads as a top-heavy construction with the second storey slightly extruding over the main entrance and window. the resulting overhang provides shading as well as a distinct identity to the narrow elevation.

KAZUHIKO NAMBA+KAI WORKSHOP: boxhouse 134 interior viewimage © hiroshi ueda

totalling in six different levels, the design distinguishes individual zones by a slight change in elevation. stairs and wide steps provide stages on which programs gain spatial autonomy. the interior remains visually connected while maintaining boundaries between areas.

KAZUHIKO NAMBA+KAI WORKSHOP: boxhouse 134towards kitchen and dining spaceimage © hiroshi ueda

KAZUHIKO NAMBA+KAI WORKSHOP: boxhouse 134 view of loft levelimage © hiroshi ueda

KAZUHIKO NAMBA+KAI WORKSHOP: boxhouse 134 night viewimage © hiroshi ueda

KAZUHIKO NAMBA+KAI WORKSHOP: boxhouse 134 site map

KAZUHIKO NAMBA+KAI WORKSHOP: boxhouse 134 floor plan / level -1

KAZUHIKO NAMBA+KAI WORKSHOP: boxhouse 134 floor plan / level 0

KAZUHIKO NAMBA+KAI WORKSHOP: boxhouse 134 floor plan / level +1

KAZUHIKO NAMBA+KAI WORKSHOP: boxhouse 134 longitudinal section

KAZUHIKO NAMBA+KAI WORKSHOP: boxhouse 134 axonometric

KAZUHIKO NAMBA+KAI WORKSHOP: boxhouse 134structural axonometric