The first Swedish project of Herzog & de Meuron will see the Swiss firm transform one of Stockholm's famous landmarks – the Gasklockan – into a mixed-use skyscraper and urban park.

Commissioned by Oscar Properties, the new tower – formerly a gasworks facility dating to the 19th century – will rise 97m and contain 317 residential apartments, offices, a deli, day-care centre, cinema, spa, and exhibition space.

Herzog & de Meuron will also collaborate with landscape architects Piet Oudolf and LOLA to reshape the surrounding industrial area into a public green space with wildflower-lined pathways and a meeting plaza.

The project will form part of Stockholm’s North Djurgård City initiative, Northern Europe’s largest urban development scheme.

The initiative, which is slated to create 12,000 homes and 25,000 jobs, will also completely revamp the industrial site, turning it into a visitor’s centre for "trade, culture, and gastronomy".

The Gaslockan is set to be completed in 2022.