/01 PAPER · GENESIS

Each project begins with one piece of paper.

An atelier of folded architecture by Saito Ihara. Five buildings. Five sheets. Each unfolds as you descend.

ATELIER · TOKYO EST. MMXVII 折 · CREASE

/02 WORK · 001

MMXIX

Tsuru Museum

Museum · 12,400m² · Kanazawa

A folded crane in pre-cast concrete. The museum's roofline lifts in two wings; visitors enter beneath the head, exit between the tail feathers. Light filters through slatted creases at noon, casting striped shadows on the central court.

Status — Built · 2021
Sheet — Single fold, 36 panels
Award — JIA Gold, 2022

/03 WORK · 002

MMXX

Hasu Pavilion

Tea pavilion · 240m² · Kyoto

Eight petals of cypress, raised over a still pond. The petals open one degree per day across the cherry season; on the final petal-fall they lock shut and the pavilion sleeps until autumn. A breathing building.

Status — Built · 2022
Sheet — 8 petals, kinetic hinge
Material — Hinoki cypress, 14mm

/04 WORK · 003

MMXXII

Hakuchō Chapel

Chapel · 380m² · Hokkaido

A swan resting on snow. Two folded wings rise to meet above the altar; a single seam runs the length of the spine. In winter the chapel disappears into the landscape — only the seam remains visible from a distance.

Status — Built · 2023
Sheet — Mirror fold, ridge spine
Capacity — 64 seats, intimate

/05 WORK · 004

MMXXIV

Yama Pier

Pier · 1,800m linear · Setouchi

A folded ridge over the inland sea. Three valley folds form benches; three mountain folds form shelters. At low tide the pier walks on water; at high tide it floats. The geometry never changes — only the relation.

Status — Built · 2025
Sheet — Triple zigzag, 12 modules
Span — 1,800m, no expansion joint

/06 WORK · 005

MMXXVI

Hoshi Lighthouse

Lighthouse · 28m height · Okinawa

A six-pointed star folded from a single triangle. The lantern sits at the centroid; six folded blades catch and redirect the beam in six directions simultaneously. The first lighthouse without a rotating mirror.

Status — In progress · 2026
Sheet — Stellated, 6 blades
Reach — 22 nautical miles, all bearings

/07 ATELIER · PHILOSOPHY

To fold is to commit.

Every architect draws a line, but a line can be erased. A fold cannot. Once a sheet is creased the fibres remember; the paper will return to that crease before any other. This is the first principle of the atelier — design only what the paper will keep.

A building, like a sheet, has a finite number of folds. Beyond that count the fibres tear and the form collapses. Before the first sketch we count: how many folds will this building need? Six, twelve, twenty-eight? The answer dictates everything that follows — material, span, light, time.

We do not believe in restoration. A folded building cannot be restored, only re-folded — which is to say, replaced. We design buildings the way we make tea: once, slowly, with the understanding that this exact arrangement will never recur. The crease is the only permanent thing.

SAITO IHARA · BORN 1976 · KANAZAWA FOUNDED CREASE / 折 ATELIER · 2017 5 BUILDINGS BUILT · 4 IN PROGRESS · 1 PUBLISHED MONOGRAPH

/08 CONTACT

Begin with a sheet.

Commissions accepted by letter only. We respond within forty days, on washi, in ink.

CORRESPONDENCE [email protected] replies posted, never emailed ATELIER 2-14-3 Yanaka, Tokyo 110-0001 visits by appointment, Tuesdays MONOGRAPH "One Sheet" — Lars Müller, 2024 288 pages, 124 plates, signed editions