Breathing new life into industrial heritage
Torshovhøyden
On behalf of Orkla Real Estate, Sweco has transformed old administrative buildings and the surrounding park in the Torshovhøyden area of Oslo, into a vibrant residential area. Alongside the historic structures, Sweco has designed two new buildings that integrate seamlessly with the existing environment.
Facts about the project
Client
Orkla Eiendom
Place
Oslo, Norway
Status
Completed
Photographer
Einar Aslaksen
In the footsteps of traditional Norwegian architecture
Norway’s industrial buildings were once symbols of national pride, often designed by the country’s leading architects with meticulous attention to detail, such as the turbines at hydropower plants as well as factories.
As industries moved out of urban areas, many structures were left vacant and so red brick facades with intricate ornamentation became ghostly reminders of a bygone era. Over time, factories were repurposed into residential spaces, where exposed brick, expansive windows, and varied ceiling heights reflected their industrial past.
More than just a Christmas tree
The former administrative building stood as a testament to this rich history and this high-rise structure, which used to light up Oslo like a Christmas tree each December, had otherwise remained dark and unused.
Sweco has revitalised the site, not only preserving the original buildings but also introducing two new structures that complement the historical surroundings.
Back to the future
The project posed significant challenges, requiring the preservation or reconstruction of numerous details from 1929. For example, the roof was carefully replaced with an exact replica of the original.
Designing such roof trusses isn’t something taught to architecture students today. While current standards guided much of the work, adapting to materials and techniques from nearly a century ago was essential. The high-rise featured thin concrete slabs, single-glazed windows, and minimal insulation. Without compromising the building’s historic character, engineers meticulously recalculated load-bearing capacities, while architects designed upgraded windows, insulated walls, and the new roof.
The parapet walls behind the windows were removed, replaced by floor-to-ceiling glass facades offering panoramic views. Original sun shading systems were replaced with modern solutions, providing enhanced control over lighting, heating, and privacy.
Continuing history
The two new brick buildings on the site are distinctly modern yet respectful of the surrounding architecture. The goal was to create sustainable design with durable materials that are in harmony with the historic environment. Thanks to existing infrastructure, the former industrial zone has been transformed into an urban park with pedestrian and cycling pathways.
The result is a project where history remains present. The buildings have been modernised without losing their identity – a factor that likely contributes to the popularity of the apartments, even in a competitive market.
The high-rise offers stunning views, enveloped in glass like a fishbowl – but with options for privacy and shading when needed.
The new residences embody permanence, flexibility, and connection to their surroundings. By blending historic details with contemporary features such as rooftop terraces, communal spaces, and durable materials, the factory buildings have found new purpose – elevating the living experience in the process.
Ensuring sustainable development while respecting cultural heritage
Sweco offers expertise in transformation architecture by blending historical preservation with modern design.
With a multidisciplinary team, Sweco can provide tailored solutions that balance functional requirements with the unique characteristics of each site, fostering a respectful relationship between existing structures and new developments.
Read more about Sweco’s offer within transformation architecture.
