Open House Festival London
What is Open House London?
Open House London is an annual festival celebrating London’s buildings, architecture and neighbourhoods. In 2026, the festival will take place from12-20 September with a wide range of drop in and bookable events and tours taking place across all 33 London boroughs, including the London Borough of Hounslow. All the festival events are free and will be listed on the InHounslow calendar, providing the perfect opportunity to get to know London and the local Hounslow area better.
With 365,000 visits in a single weekend, the Open House Festival is the largest celebration of urban landscape in the world. It is staged by the charity Open City with the aim of making London a more accessible, equitable and open city for all. For the full details, visit the Open House website.
We encourage our residents and visitors to explore the distinctive neighbourhoods that make up the borough of Hounslow on foot, by bicycle or using public transport.