Heritage Open Days 2026 (11 to 20 September) is a nationwide programme of free events that opens up places and stories you do not normally get to see. It sits alongside the National Trust’s wider heritage work, but it is broader than any single organisation, with local groups, councils, churches and community historians all taking part. Think of it as the UK’s answer to open house festivals, but with more emphasis on hidden histories, archives and local character.
What can you actually do during Heritage Open Days?
Expect a mix of open buildings, guided walks, talks and small exhibitions, often run by people who know the area inside out. Some events are drop in, others need booking, and popular slots can go quickly.
- Behind the scenes access, such as towers, crypts, workshops or private rooms that are usually closed
- Local walks and tours that focus on neighbourhood stories rather than headline attractions
- Talks and displays using photos, maps and records to explain how places changed over time