Architecture · Béton brut Est. 2009 - Zürich / Porto

We build only
in raw
board-formed
concrete.

FORMWORK is an architecture studio with a single material discipline. No render, no cladding, no paint - every wall carries the grain of the timber it was cast against, left exactly as struck.

14 built projects Cast in place RIBA / SIA
[ 01 - Position ] One material, fully

A studio with a single, unbending material

Board-formed concrete is not a finish we offer. It is the entire premise of the practice - structure, surface and detail resolved in one continuous pour.

/ Surface

The timber stays in the wall

Sawn boards are the mould. Their grain, knots and butt-joints transfer permanently into the face - the formwork becomes the finish.

/ Structure

Loadbearing, not applied

Every concrete element does structural work. Nothing is veneer; the wall you see is the wall holding the building up.

/ Honesty

Marks are left as struck

Tie-cone holes, pour lines and the seams between boards are kept open and visible. We record the process, we don't hide it.

[ 02 - Selected work ] 2014 - 2026

Fourteen buildings, one surface

Sankt Brigid Chapel

2024
Uri, CH Type / Sacred Pours / 3

House on the Quarry

2023
Douro, PT Type / Private Span / 9 m

Kunsthalle Annex

2022
Basel, CH Type / Cultural Area / 1,400 m²

Water Tower Conversion

2021
Porto, PT Type / Adaptive Height / 34 m
[ 03 - The material ]

Cast against sawn timber, left raw

We design the shuttering as carefully as the building. Board width, grain direction and joint lines are drawn before a single bag of cement is mixed - because once the formwork is struck, that pattern is permanent.

FinishAs struck
Board width150 mm
StrengthC32/40
CoatingsNone
TiesOpen cone
MethodIn situ
14 Buildings completed, all board-formed
100% Cast in place on site, never precast panels
0 Coatings, renders or applied finishes used
17yr Refining one material since 2009
[ 04 - How we work ] Brief → strike

Four stages, one continuous pour

/01

Draw the formwork

Before the building, we draw the mould. Every board, joint and tie position is set on the elevation, so the finished surface is designed - not discovered on site.

/02

Build the shutter

Carpenters assemble the timber shuttering to millimetre tolerance. The grain direction and butt-joints are agreed as drawings, then mocked up at full scale.

/03

Pour & vibrate

A single, continuous pour wherever the structure allows, vibrated to bring the fines to the face. Timing the pour is the difference between a flat grey wall and a living surface.

/04

Strike & leave

The formwork comes away and the wall is finished. No grinding, no filler, no seal - the tie-holes and pour lines stay exactly as the casting left them.

[ 05 - Commission ]

Bring us a wall
worth casting

We take on a small number of buildings each year where raw concrete is the point, not the budget option. Send the site, the programme and the constraint.

Start a brief