Open House Festival 2026

Published: 21st August 2026

Oh key

The Open House Festival returns to Hounslow this September for 8 days of free visits and activities!

Do you want to celebrate our neighbourhoods, heritage and architecture in September this year? Hounslow has 22 Open Houses - venues big and small, modern and historic, industrial, religious and domestic to explore as part of the Festival which runs from 12-20 September 2026. Visit interesting and hidden places in Hounslow, and share our unique and diverse stories! 

All visits and acitivies are FREE and all you need to do to be involved is to create a free account on the Open City website. Some venues have limited space so you may need to reserve your spot, whilst others are drop in.

Use the map to choose your borough, then explore using the Neighbourhoods. This year we're proud to have four neighbourhoods represented: Chiswick, Isleworth, Brentford and Feltham/Hanworth/Kempton.

Our neighbouring boroughs also have interesting Open Houses to visit. Check out Richmond.