(01) — About us

Copenhagen / Oslo — since 2009

A practice

of few moves

We are fourteen people working on a small number of buildings at a time, in two cities, with a preference for what is already there.

We are fourteen people working on a small number of buildings at a time, in two cities, with a preference for what is already there.

The studio takes on roughly four projects a year. That number is deliberate: it is the most we can run while every drawing still passes through the people whose names are on the door.

We work in concrete, timber and stone because they age in public. A building that shows its years honestly asks less of the people who maintain it.

Halden Architect studio — drawings and instruments on a desk

[ Studio — Refshalevej, Copenhagen ]

Fifteen

Years

Fifteen

Years

(02) — History

2009

2009

Studio founded on Refshalevej

One room, two people

One room, two people

2013

2013

First public commission completed

Jutland

Jutland

2017

2017

Oslo office opens

Storgata 36B

Storgata 36B

2021

2021

Fjord Chapel completed

Sognefjord, NO

Sognefjord, NO

2024

2024

Gröndal Library opens to the public

Stockholm, SE

Stockholm, SE

The people

The people

(03) — Studio

man in black button-up shirt
Ivar Halden

Founding Partner

Started the studio in 2009 with one commission and a rule about material honesty that has not moved since.

man in black hoodie wearing black framed eyeglasses
Nils Aakre

Partner — Design

Leads the drawing. Responsible for the section-first method the studio now applies to every brief.

man in black framed eyeglasses and gray crew neck shirt
Mats Løvstad

Partner — Technical

Structure, envelope and the long argument with physics that makes a detail last forty years.

man wearing maroon V-neck t-shirt in forest
Jonas Brekke

Associate — Projects

Runs sites. Keeps what was drawn and what gets built closer together than they usually are.

man standing in front of window
Erik Sørhaug

Associate — Landscape

Works from the ground outward, so buildings arrive on a site instead of on a plot.

man wearing black notched lapel suit jacket
Tobias Winther

Architect — Research

Carbon accounting, reuse audits, and the case for keeping frames that already exist.

How we

Work

How we

Work

(04) — Method

01

Section before plan

We draw the building in section first. It decides light, height and structure at once, and it stops the plan from becoming a diagram of rooms.

02

Keep what stands

A sound frame is a carbon asset. We audit what exists before proposing anything new, and we have talked clients out of demolition more than once.

03

Three materials, no more

Every project is held to a palette fixed at the start. Restraint here is not an aesthetic; it is what makes the detailing solvable.

04

Detail for year forty

We specify for how a surface will look after four decades of weather, not after the photographs are taken.

(07) — Contact

Start a project

Let's

Build

Something.

studio@halden.archi

Copenhagen

Refshalevej 163A

1432 København K

Denmark

Refshalevej 163A

1432 København K

Denmark

Oslo

Storgata 36B

0182 Oslo

Norway

Storgata 36B

0182 Oslo

Norway

Enquiries

+45 32 12 09 09

press@halden.archi

+45 32 12 09 09

press@halden.archi

HALDEN

© 2026 Halden Architect — All rights reserved

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