Accountor Tower

1970s tower refurbishment, refreshed with all-glass structures on the rooftop

The complete renovation of the former Fortum tower in Keilaniemi, Espoo, includes the restoration of the premises and extensive modifications both on the base and on the rooftop of the building. 

Three completely new floors were executed on top of the tower without changing the physical height nor the cityscape. This grand maneuver was enabled by relocating the ventilation spaces dividing them to each office floor. 

In contrast to the original brutalism of the ‘70s, the new exterior walls of the rooftop floors were designed as minimalistic all-glass structures. On both sides of the rooftop, there is also a partially covered glass terrace which is used by the panorama restaurant on the 20th floor.  

The project is part of a bigger change in the city plan of Keilaniemenranta. The plan alteration enables approximately 70 000 GFA of new office, retail and residential development. 

The Building Board and the Building Supervision Department of Espoo granted an honorary mention in the HURRAA 2020 awards for the distinguished conservation work of the tower. Annually held, HURRAA awards recognize exemplarily and successfully executed actions for the built environment.