The next hundred years

Tehtaankatu Primary School

Location
Eira, Helsinki
Scope
4 300 brm2
Completion
2023
Original building
Pääurakoitsija
Customer
Helsingin kaupunki

The renovation of Tehtaankatu Primary School in Ullanlinna, Helsinki, was completed in 2023. With the school’s exterior already under heritage protection, the renovation was driven by a commitment to apply those same preservation principles to the interior.

It became evident early in the design phase that the spaces of this centenarian school were well-suited to serve future generations. The clear spatial hierarchy—defined by classrooms, lobbies, and generous four-meter room heights—imbues the building with an inherent flexibility. These high ceilings allowed for the integration of modern building systems without sacrificing natural light, allowing the renovation to lean heavily on the logic of the original layout.

This dedication to the building’s character extended from spatial organization to surface textures. While the decorative friezes typical of the Art Nouveau era had been largely lost in previous alterations, construction work revealed a surprising abundance of original decorative painting fragments hidden within the classrooms.

The design team, in collaboration with conservators, successfully exposed these fragments to create templates for restoring the motifs of owls, horse chestnut flowers, and other flora and fauna. The original exposures were lightly retouched and left visible, forming a historical dialogue with the newly painted reconstructions. The interior’s original color palette was revitalized, and in the main and second-floor halls, original interior windows were restored to bring back natural light.

Post-renovation, the building’s physical fabric and its original visual values are now preserved for future students. The architecture provides a calm, coherent environment that offers a counterbalance to the intangible, digital nature of modern education. Despite minor interventions, the building’s fundamental character remains intact. We trust that it will serve the school’s future, yet undefined, needs.

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