A Roof for Helsinki

Public space plays a structuring role throughout the project. Paths, parks, plazas, and open areas are conceived as the starting point of the intervention, ensuring that the redevelopment strengthens outdoor life and encourages year-round use. This sequence positions the former workshop as a civic anchor, integrating it into everyday urban routines instead of isolating it as a landmark.

At ground level, an organic vaulted ceiling defines a generous entrance condition and reinforces the relationship between interior activity and the surrounding public realm. Above, a new green platform introduces an elevated landscape with panoramic views over Helsinki. Conceived as a continuous roofscape, this level extends the public dimension vertically and reinforces the idea of a shared urban ground.

The architectural form is developed to be adaptable and cost-efficient over time, anticipating changes in programme and use. Material choices establish continuity with the local context while supporting this flexibility. Wood at ground level introduces warmth and tactility and encourages an active relationship with the street. Brick creates a dialogue with the surrounding industrial fabric, while the glazed upper portion lightens the mass and allows the building to dissolve into the skyline.

The project was developed in collaboration with the developer, public authorities, and residents, and through a partnership between MASSLAB and AFRY Ark Studio, combining international design capacity with local technical expertise. The competition was hosted by Train Factory Group and the City of Helsinki, bringing together five international teams across two selection phases.