Mad Arkitekter

KA13 Office & Coworking Building

KA13 Office & Coworking Building

Mad arkitekter

KA13 Office & Coworking Building
© Kyrre Sundal

ARCHITECTS
Mad Arkitekter

CLIENT
Entra Asa

LEAD ARCHITECTS
Noora Khezri

ARCHITECT
Catriona Shine, Åshild Wangensteen Bjørvik, Tea Hranj, Siri Ulrikke Høye, Jonny Klokk, Emil Pira, Kyrre Sundal, Nicolai Riise

MANUFACTURERS
Steni, Grasshopper, Tewo

INTERIOR ARCHITECT
Scenario Interiørarkitekter

LANDSCAPE ARCHITECT
Asplan Viak

PROJECT MANAGEMENT
Insenti

ADVISOR
Futurebuilt

STRUCTURE ENGINEERS
Rambøll

CONTRACTOR
Haandverkerne As

ACOUSTICS CONSULTANTS
Brekke & Strand Akustikk

PARTNER IN CHARGE
Trond Elverum

TENANT
Spaces

PHOTOGRAPHS
Kyrre Sundal

AREA
4300 M²

LOCATION
Sentrum, Norway

YEAR
2021

CATEGORY
Offices

KA13 Office & Coworking Building
© Kyrre Sundal

KA13 is located in central Oslo. A formerly dilapidated building has become a bright and fully revitalized, modern office- and coworking space. The project consists of two parts: rehabilitation of the existing building and a new extension, as well as upgraded technical facilities. The extension is predominantly made from a wide range of reused building materials, sourced from different construction sites around Norway.

In numbers, KA13 has achieved a local reuse of ca. 80% and emission reductions of ca. 70%, for the project as a whole. The programming has remained unchanged with offices on all floors above ground level.

KA13 Office & Coworking Building
© Kyrre Sundal
KA13 Office & Coworking Building
© Kyrre Sundal

However, some new functions have been added, such as communal functions and bicycle parking in the basement, roof-top terraces, and common areas throughout the building, adding value to the project.

KA13 stands as a monument to reuse, but the journey has been challenging and eventful. The reuse process is different from regular construction, and the project is heavily affected by the materials that were available during the project period.

KA13 Office & Coworking Building
© Kyrre Sundal
KA13 Office & Coworking Building
© Kyrre Sundal

The client, known for high-quality and future-oriented projects, wished to lead the way with an innovative project.

We have been working with reuse and the transformation of buildings for quite some time, acquiring useful skills and knowledge. However, extensively reusing single-building components, as done in KA13, is a groundbreaking process.

KA13 Office & Coworking Building
© Kyrre Sundal
KA13 Office & Coworking Building
© Kyrre Sundal

This required strategies fine-tuned through interdisciplinary processes, where all disciplines were closely involved every step of the way.

Since there is currently no system for qualifying building materials for reuse, all materials had to be sourced, examined, and prepared separately.

KA13 Office & Coworking Building
© Kyrre Sundal
KA13 Office & Coworking Building
© Kyrre Sundal
KA13 Office & Coworking Building
© Kyrre Sundal

Each component was evaluated by an interdisciplinary team on a variety of criteria; from cost and service life, to function and aesthetics. After rigorous evaluation and being cleared for use, components were prepared for transportation, storage, and on-site installation. Buildings account for a large part of our resource use in terms of materials, energy, and waste.

The way KA13 challenges established norms is a big step towards increased sustainability. In addition, the preservation of buildings is highly valuable for contextual identities and history, which makes a profound contribution to a more sustainable society.

KA13 Office & Coworking Building
© Kyrre Sundal
KA13 Office & Coworking Building
© Kyrre Sundal
KA13 Office & Coworking Building
© Kyrre Sundal

A predominance of materials used in KA13 came from donor buildings within a short distance.

We have reused concrete slabs from old government facilities and steel structures from warehouses, with the windows coming from an incorrect order made on a different project.

The railings are sourced from an old swimming bath and the facade cladding consists of panels from various projects around Oslo.

KA13 Office & Coworking Building
© Kyrre Sundal
KA13 Office & Coworking Building
© Kyrre Sundal
KA13 Office & Coworking Building
© Kyrre Sundal

Old radiators, doors, wall coverings, and even furniture were saved from the original building and carefully restored. The field of reuse is largely about systems, regulations, and factors outside architecture itself.

Despite several challenges we have achieved results which few thought possible, thus paving the way for others to follow as we strive to lead the construction industry towards a more sustainable future.

KA13 Office & Coworking Building
© Kyrre Sundal
KA13 Office & Coworking Building
© Kyrre Sundal
KA13 Office & Coworking Building
© Kyrre Sundal
KA13 Office & Coworking Building
© Kyrre Sundal
KA13 Office & Coworking Building
© Kyrre Sundal
KA13 Office & Coworking Building
© Kyrre Sundal
KA13 Office & Coworking Building
© Kyrre Sundal
KA13 Office & Coworking Building
© Kyrre Sundal


KA13 Office & Coworking Building
Ground Floor Plan
KA13 Office & Coworking Building
Floor Plan
KA13 Office & Coworking Building
Floor Plan
KA13 Office & Coworking Building
Roof Floor Plan
KA13 Office & Coworking Building
Site Plan


KA13 Office & Coworking Building
South West Facade
KA13 Office & Coworking Building
North East Facade


KA13 Office & Coworking Building
Section
KA13 Office & Coworking Building
Diagram

KA13 Office & Coworking Building
Axonometric

Mad Arkitekter
T +47 477 52577
Mad Arkitekter
Pilestredet 27, 0164 Oslo, Norway