Södermalmstorg nominated for the Swedish 2025 Stone Award – Stenpriset

Södermalmstorg at Slussen has been nominated for the 2025 Stone Award – an annual prize recognising projects that use natural stone in an aesthetic, sustainable and innovative way. As a central part of Sweden’s largest stone project in modern times, the square is celebrated for the way stone, art and greenery come together to form an inviting urban space in the heart of Stockholm.

Designed by White Arkitekter on behalf of the City of Stockholm, Södermalmstorg plays a key role in the transformation of Slussen – a meeting point where the city’s various levels connect and natural stone takes centre stage in the design. The jury highlights how the stonework unites the site’s functions, movement and history into a coherent whole that reflects long-term quality and care.

Our ambition was to let stone take a leading role without the space feeling hard or inaccessible. Through careful detailing, integrated art and spatial variation, the square becomes both robust and welcoming – a place to linger.
Paula Mackenzie, Lead Landscape Architect at White Arkitekter

At Södermalmstorg, the structure of the stone interacts with the vitality of the greenery. The generous granite paving, made from Swedish granite processed in Sweden, was chosen for its durability, resilience and ability to age beautifully over time. Across the surface runs the artwork Fotnoter (Footnotes) by Per Mårtensson, where inlaid cassettes containing historical materials tell the story of Slussen’s evolution and the centuries of urban development that have shaped the site.

Swedish granite meets the artwork Fotnoter (Footnotes) by Per Mårtensson – a story in stone about the evolution of Slussen. Photo: Måns Berg

Raised planting islands with seating, shade-providing trees and flowering perennials add softness and spatial depth to the robust stone landscape, turning the square into a new living room for the city.

Together with the Mälarterrassen green roofs and the Mälartrappan steps, Södermalmstorg forms part of a cohesive blue-green identity for Slussen – where stone, water and vegetation merge into a timeless urban environment.

It’s wonderful to see how stone can be both structuring and inviting. Here, it becomes a defining element connecting history and the present, city and nature.
Paula Mackenzie

The Stone Award is presented annually by the Swedish Stone Industry Federation to recognise projects that demonstrate an aesthetic, sustainable and innovative use of natural stone. The winner will be announced in early December.

Contact person

Paula Mackenzie

Paula Mackenzie

Landscape architect, Deputy Studio Manager

Stockholm

+46 8 587 121 08

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