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🟩 GreenBricks Building of the Week 🟩 Kristian Augusts Gate 13

Upcycled green

1958 office building upcycled with 80% reclaimed materials. The architects’ biggest piece of advice for reuse: know your materials – “Everyone thinks the building industry revolution is digital. It can be. But it’s also very much physical” – finding value from unlikely sources.


🏢Building Details

  • 43,000 sq ft, 8-storeys

  • Completed 2021

  • Winner of 2021 Norwegian State Prize for building quality

👷🏾‍♀️Developer & Contractor

✍️Architects & Engineers


  • Made of 80% upcycled building materials: design team sourced materials including steel, tile, bricks, wood, cladding panels + windows from 25 demolition sites around Norway – called “donor buildings”

  • 3 of the additional floors built with slabs recovered from the Regjeringskvartalet government offices that were damaged in a 2011 terrorist attack

  • Embodied carbon reduced by 70% compared with baseline new construction – with 9,200 sq ft addition

  • Cladding panels fastened with a simple screw system = easy to repair or replace

  • Green roof made with recycled peat-free soil (no artificial fertiliser) – porous lava rock from Iceland = main component

🥦 Wellbeing

  • Eclectic and welcoming space: decorated with a mosaic salvaged from the 1958 office interior plus warm timber furnishings throughout

  • Includes communal bar, kitchen and outdoor terraces to serve as social spaces

  • Entrepreneurial coworking community equipped with super-fast WiFi, support staff and flexibility to grow

🎈Bonus feature

Hurdles were manifold: the marketplace for reused materials is not well established + coordinating the construction schedule with demolition schedules of dozens of other projects required patience and flexibility. So 80% is remarkable. The building provides a new pathway for circular projects. Check out the architects’ Key Findings Report here.

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