Norra Tornen, Stockholm by O.M.A.
Norra Tornen is a two-tower residential development in the Vasastaden district of Stockholm, Sweden. The towers were designed by the Dutch architectural firm O.M.A.
The east tower, ‘Innovationen’, which stands at 125 metres high, opened in November 2018, while the 110-metre-high west tower, ‘Helix’ was completed in June 2020.
Lead architect Reinier de Graaf's design is characterised by a modular system of precast concrete elements which come together to form a façade comprising hundreds of box-like bay windows. The apartments' terraces are set back to provide shelter.
Using as many precast elements as possible enables construction work to continue at temperatures below 5° Celsius and reduces building costs.








