Sugi Kost

A private house turned shared, structurally reconfigured around one carved void that pulls daylight down through its darkest core.
Sugi Kost is a private house that becomes a shared one through a structural reconfiguration rather than a rebuild. Keeping the existing structure is the principle the design starts from — the most cost-effective decision available. Rather than redraw the framework, the renovation carves a void through the center of what is already standing: a vertical spine that carries circulation and pulls daylight and air into a core that had been dark and closed.
The restraint is economic before it is aesthetic. The aim was to maximize the existing footprint and its comfort while minimizing changes to the original scheme, so the old framework keeps its bones and takes on a new role as a co-living home.









Above the void the roof turns transparent, dropping daylight the full height of the building into the middle of the plan, while the front facade is given over to transparent material so light and the street's breeze pass through into the shared area. Air has a route in and a route up.
Against that openness the palette stays warm throughout — shared housing turns cold easily, and warmth is what keeps the place domestic rather than institutional.
Arrival follows a clear order: street, then shared space, then your own door. Nobody reaches a private room without crossing the common one, and that room is left unassigned, open to whatever the household needs of it at any hour.










