The Stone Award of 2025

Mälarterrassen and Södermalmstorg win the 2025 Stone Award. The architecture firms Foster + Partners and White Arkitekter have won the 2025 Stone Award for the projects Mälarterrassen and Södermalmstorg, respectively, both part of the major redevelopment of Slussen in Stockholm.

Mälarterrassen and Södermalmstorg opened to the public on 6 June this year, as part of the larger Slussen reconstruction, and have quickly become popular meeting places.

– Both projects form the heart of Sweden’s largest single stone project in modern times and encompass everything from artistic explorations of history to functioning infrastructure for the nearly 500,000 people who pass through here daily – or who want to stop and take in the view of one of the world’s most beautiful waterside capitals, says Kai Marklin, chairman of the jury and of the Swedish Stone Industries Federation ”Sveriges Stenindustriförbund”.

The stonework consists of a palette of classic Swedish granite varieties that, like natural cliffs, connect the site with the water and unite the district with the rest of Stockholm.

– As representatives of an industry that has significantly contributed to realising such a place – one so important to both Stockholmers and everyone who visits the city – we can feel nothing but pride. Everyone involved has shown what is possible when people collaborate. It is a historical legacy left to future generations.

Paula Mackenzie from White Arkitekter has been the lead landscape architect for the redesign of Södermalmstorg. She emphasises that Slussen is a public space that becomes what people make of it. – You have to give the place some time and see how people begin to use it, she says.

Spencer de Grey, Head of Design at the UK-based Foster + Partners, also emphasises that Stockholm’s residents have been at the centre of the redesign. – It is meant to become a place for everyone in the city, he said at the opening this summer.

The new issue of Sten magazine provides an in-depth look at the project and all those who contributed to realising the vision for the site.

We at Hallindens Granit were delighted to serve as a supplier and would like to thank all our partners as well as Skanska för their continued trust and excellent collaboration!

The jury’s motivation reads: Open future – memory of history. A place where around half a million people pass each day and which matters to millions more – both Stockholmers and visitors. With the new Södermalmstorg and Mälarterrassen, Sweden’s largest stone project in modern times has become a place that will be shaped by people – on their own terms and with new memories for future generations. Just as the site has always functioned, both as a link to history and a new chapter in the ongoing story of a city.