A council-commissioned housing development in Coulsdon, south London, called Lion Green Road, wins the 2026 RIBA Stirling Prize. The project is recognised as the year’s top building at a ceremony held at Old Billingsgate in London, marking the prize’s 30th anniversary.

The housing scheme is designed by Mary Duggan Architects with RUFFARCHITECTS for Croydon Council and includes 157 homes across five residential blocks. Outlets describe it as combining privately owned and socially rented homes, created on the site of a former car park. Coverage also notes that the Stirling Prize is awarded annually by the Royal Institute of British Architects to a building judged to make a significant contribution to the evolution of architecture and the built environment.

While reporting varies in emphasis—from design narrative to background details—sources agree on the winner, the commissioning council and architects involved, and the overall scale and site of the development.