Millenniumhuset is an architectural landmark with the task of signaling the entrance to the Stockholm district of Marievik, monumental in scale and design but at the same time part of the larger whole. There is now a first vision for an upgrade of the Millennium House, which will be an important piece of the puzzle in the development of the whole Marievik.

Most of the buildings in Marievik were designed and built during postmodernism, mainly in the 1980s and 1990s. Like other buildings in the area, Millenniumhuset is characterized by strong geometric shapes, unexpected details and clear colors. As the most modern building in the area, built in 1998-2000, the Millennium House stands out somewhat with its more austere expression, and together with the rest of the family it contributes to the image of a diverse but coherent neighborhood.

Millenniumhuset is about to undergo a major transformation that will both renew the building and reinforce its importance as a gateway to Marievik. The vision is to replace the existing top floor with three new floors, creating a new silhouette in the cityscape. The Millennium Street - which runs through the building - will be developed into a more public and vibrant place through new activities, clearer entrances and increased visual openness on the ground floor. A glazed arcade facing Årstaängsvägen gives the building a more welcoming front, while new entrances, elevators and evacuation stairs increase accessibility and capacity. The goal is an attractive office building that contributes to the vision of an open, diverse and vibrant Marievik.

The project is characterized by the desire to develop the existing rather than replace it. By preserving the building's structure and character while adding office space with high spatial and functional qualities, sustainability is combined with architectural ambition. Millenniumhuset will be an important part of the whole - a new layer in Marievik's development.