The site is unique due to the presence of several historically significant gasholders. The overall circular design language of 'Stadsljus' is shared with the existing gasometers, creating a strong architectural character—a family of cylindrical buildings. Over time, with the help of new technologies and construction methods, the architectural expression of the site’s existing gasholders has changed significantly, but has always retained the fundamental form of a cylinder.
'Stadsljus' is a new generation of the “gasholder”, using the cylindrical identity of the context as a starting point, yet is adapted to the needs of high-quality housing. Combining three clustered cylinders allows for a downscaled volume that is ideally suited for housing, while shaping a tower with a more fine-grained articulation and vertical proportions.
A distinctive feature of the historical Gasholders 1 & 2 is the large vertical brick piers. They have served as inspiration for the base of the tower, introducing a high level of detail and a material quality to the animated ground floor.
Inspired by the rational and repetitive steel skeleton of the Gasholder 3, the body of the tower consists of a modular, three-dimensional metal façade, subtly capturing daylight on its angled surfaces.
The crown of the tower is an interpretation of the tops of the historical Gasholders 1 & 2. Featuring a faceted and pitched roof with a pronounced overhang, it makes a distinctive mark on Stockholm’s skyline, while featuring solar cells and concealing technical devices.
The tower’s modular façade is efficient in terms of time, economy and precision. Its expression is achieved with a highly repetitive kit of parts. A typical storey consists of only three basic modules which can then be mirrored. This allows for various configurations to strike the right balance between variety and rationality.
The facade panels are built-up of as a modular skeleton - a simple frame containing both facade elements and balconies. The sub-frames within the skeleton contain closed wall panels, windows, doors, and the terraces. The structure is clad in a weatherproof and low-maintenance metal material, such as recycled aluminium, corten steel, or tombak.
The landscape surrounding the tower is inspired by the highly specific and distinctly hilly Stockholm archipelago. The landscape consists of low vegetation and green peaks that have been carefully placed in relation to the existing conditions on the site.
The landscape offers three main visitor destinations on site - the tower, the cultural stage and the sculpture park. They are intertwined and meet in the green heart - a public gathering place with nature at its center.