Rehabilitation of Kommunenes Hus

Conversion and extension of a uniquely protected 1950s building in Vika, centrally located in Oslo and home to the national association of local and regional authorities, KS. The building serves as a key conference center and headquarters. The project introduced open street-level façades, improved accessibility, and addressed the need for stronger institutional visibility. It was nominated for both the Oslo City Architecture Award and the Norwegian State Building Design Award in 2015.

Client

Kommunenes Hus AS

Location

Oslo

Status

Completed

Period

2008 – 2013

Area

Approx. 7,000 m2 remodelling and newbuilds

Function

Course and conference centre, offices

Discipline

Responsible projecting ARK, interior designer, responsible SØK

Kommunenes Hus is part of the post-war redevelopment of the Vika district in Oslo. Completed in 1957, the building was designed by F. S. Platou Architects. Its exterior is characterized by exposed concrete facades and striking blue mosaics. Two large mosaic wall artworks by artist Alf Rolfsen adorn the structure. The property is protected as a prime example of structuralism in Norway.

The client sought a stronger physical presence for the institution within its urban surroundings. By lowering the vestibule and main entrance to street level, both accessibility and urban visibility were significantly enhanced. Increased daylight from the street and courtyard was a key factor in transforming the building into a modern venue for courses and conferences, as well as a revitalized workplace with improved standards for visitors and employees.

Throughout the renovation process, there was close dialogue with the Cultural Heritage Management Office. The project included modifications to the street-level facade sections, the enclosure of the former gas station facing Munkedamsveien, and a new extension with a redesigned rooftop landscape.

Contacts

Karin Hagen

Sivilarkitekt MNAL, Partner

+47 92 81 47 80

karin.hagen@ratioark.no

Linge Grindheim

Interiørarkitekt MNIL

+ 47 45 66 79 98

linge.grindheim@ratioark.no

Kommunenes Hus 50
1/5 Photo: Jiri Havran
Kommunenes Hus 60
2/5 Photo: Jiri Havran
Kommunenes Hus 08
3/5 Photo: Jiri Havran
Kommunenes Hus 24
4/5 Photo: Jiri Havran
Kommunenes Hus 14
5/5 Photo: Jiri Havran
Kommunenes Hus 04
Photo: Jiri Havran
Kommunenes Hus 02
Photo: Jiri Havran
Kommunenes Hus 27
Photo: Jiri Havran