The conversion of Sankt Kjelds Square into Copenhagen’s greenest climate adaptation project showcases how green infrastructure can address both environmental and social challenges.
Previously a traffic-dominated roundabout, Sankt Kjelds Square has been transformed into a lush urban climate forest, integrating stormwater management, biodiversity enhancement, and social infrastructure.
Key elements of the project include the removal of two-thirds of the area’s asphalt (from 15,000 m2 asphalt to 5,000 m2), the prioritization of active mobility, and the creation of a series of lush ‘sponge areas’ to absorb excess rainwater.
A remarkable 586 new trees were planted, contributing to a 1,200% increase in tree cover and a 121% rise in green space. The area’s vegetation now absorbs 3,960 kg of carbon dioxide annually – an increase of 518% compared to the area before – while mitigating the Urban Heat Island effects by more than 8 degrees Celsius on hot summer days.
Beyond its environmental benefits, the transformation of Sankt Kjelds Square has also significantly improved urban life. The neighbourhood has experienced a 320% increase in public activity, fostering new businesses, cafes, and social interactions.
Sankt Kjelds Square proves that climate adaptation, if done right, is not a burden – but an opportunity. Cities that take climate change seriously can not only protect their residents from extreme weather but can also create greener, healthier, and more social places in the process.
Data
Landscape architecture: SLA
Other credits: Niras (engineer)
Year completed: 2019
Photo credits: Mikkel Eye, Rasmus Hjortshøj, SLA
For video link to: https://vimeo.com/829328159
