The RIBA Stirling Prize is the UK's most prestigious architecture prize. Every year it is presented to the architects of the building that has made the greatest contribution to the evolution of architecture in the past year.
Astley Castle, Warwickshire. RIBA Stirling Prize winner 2013
The prize was set up in 1996 and is named after the great British architect Sir James Stirling (1926 - 1992).
The prize is for the best building in the UK by RIBA chartered architects and International Fellows, or in the rest of the EU by a RIBA chartered architect.
Buildings need to enter and win a RIBA National Award for architectural excellence in order to be judged for the RIBA Stirling Prize. The RIBA National Awards are announced in June each year. The winner is announced at the RIBA Stirling Prize event, held in October each year.