KITO®
Atrium House — board-formed concrete atrium crossed by a single shaft of southern light

Kito

Buildings in concrete and timber, made for harsh light.

Osaka · Residential + Gallery · Est. 2009

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02 — Selected work 2019–2025

03 — Case study A

A house organized by one vertical shaft of light.

01 / Formwork

Poured concrete, board-formed and left bare. The shutters’ grain remains in the wall like a signature.

02 / Roof

A glulam timber roof floats above the concrete without touching it — a 40-millimetre shadow does the joining.

03 / Shaft

The atrium admits a single column of southern light that crosses the staircase twice a day and is gone.

04 / Hearth

The family gathers below the opening. The room is one material, one light, one conversation.

Atrium House — raw-concrete stair tower crossed twice a day by a blade of southern light
Gallery Pavillon — the long gallery hall under its continuous skylight

04 — Case study B

Six hundred square metres of wall for one collection.

01 / Shell

Board-formed concrete in six-metre lifts. No penetration interrupts the long elevations.

02 / Clerestory

A continuous clerestory band washes the north wall with even light — the only permitted glow.

03 / Long wall

One hundred and eighty artworks will hang on this wall. It is flat to two millimetres.

04 / Floor

The floor is poured smooth and left pale. Visitors slow down here without being asked.

05 — Studio

We build with two materials and one light. Concrete carries, timber warms, and the opening decides how a day is spent inside.

  1. 01

    Structure is the finish.

    If the shuttering is straight and the joints align, nothing needs covering. Decoration is a repair.

  2. 02

    One opening per room.

    Light is planned before furniture. A room with one strong window needs no other ornament.

  3. 03

    Build for the fiftieth year.

    We detail for the tenant who repaints nothing, not for the photograph taken on opening day.

06 — Twelve people, six shown

07 — Commissions

Commission the next building.

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Kito Architects

4-2-1 Minami-Aoyama

Minato-ku, Tokyo 107-0062

studio@kito.archi

+81 3 5555 0140

KITO® © 2026 Kito Architects — All drawings and photographs of built work