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PROJECT REPORT: ADAPTIVE REUSE


ATRIUM AT THE HEART


What was an inaccessible internal courtyard is now a connecting atrium that forms the heart of the building


materials that were being reused throughout the project.


The new design was modelled down to a granular level in BIM, meaning the project was entirely drawing-free. “The building was modelled in extraordinary detail, enabling accurate planning, cost control and construction coordination,” explains Tväråna. The BIM model became the only construction document, allowing all information to be accessed by individuals and teams working on their project via their phone or tablet. “This was particularly valuable on a reuse project, where existing materials and components vary far more than standard new build products,” adds Tväråna.


It also allowed climate calculation experts to perform necessary ongoing calculations based directly on the model, and overall reduce the risk involved – particularly in a project of this size. “Combined with continuous laser scanning, the 3D model helped us identify and resolve irregularities in the existing structure early on, reducing risk and making the large-


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scale transformation far more effi cient and predictable,” Tväråna says.


Green ambition


Sustainability was not merely a consideration, but was an important part of the brief from the outset of the project. Vasakronan targets LEED Platinum certifi cation on all its developments, with 97% of its current portfolio environmentally certifi ed – 95% of which have achieved LEED Gold or higher. The developer pursues this strategy for two principal reasons; fi rstly a belief it is the responsible thing to do – focusing on areas such as energy use, material use, waste and transport. Secondly, its ‘green fi nancing strategy’ means it seeks fi nancing from investors who look for sustainable or green investments. Targeting LEED certifi cation therefore gives investors confi dence that Vasakronan are able to fulfi l the lending criteria.


Measures undertaken on Lumi – aside from the enormous reuse and recycling effort – include the integration of roof


ADF OCTOBER/NOVEMBER 2026


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