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Open House London

The initiative is a simple but powerful concept: hundreds of great buildings of all types and periods opened up their doors to all, completely for free. It is a truly city-wide celebration of the buildings, places and neighbourhoods where we live, work and play, and a quarter of a million people take the opportunity to get out and get under the skin of London's amazing architecture.

Open House London, created and delivered by the independent non-profit organisation Open-City, is the capital's largest annual festival of architecture and design. Now in its 22nd year, it is a city-wide celebration of the buildings, places and neighbourhoods where we live and work.

By providing free and open access to 250,000 accross 30 boroughs to more than 800 outstanding examples of historic and contemporary buildings, on-site projects and public spaces, it remainds the most powerful medium for engaging everyone in a better appreciation of their city.

Date: Saturday 29 to Sunday 20 September 2015

Location: across Greater London

Web: www.londonopenhouse.org

Entry cost: £0