World Architecture Festival 2015: a Swedish football club facility with a roof that doubles as spectator seating is the 2015 winner of the Small Project of the Year award at the World Architecture Festival.
Named Lidingövallen, the facility was designed by Swedish firm DinellJohansson to provide a gallery, cafe and office for Lidingö Football Club. The architects felt they could accommodate all of these spaces beneath the seating bleachers.
A combination of metal panels and wooden slats gives the structure a patterned surface. Triangular openings create routes through to the pitch.
Judges described it as a "small project with a big impact". They also praised its "efficient delivery".
The inaugural Small Project of the Year prize last year was awarded to a library in an earthquake-stricken area of China with a roof that doubles as a playground.