Heritage Open Days – Free Entry to Historic Sites Across England (11–20 Sept)

Overview

Heritage Open Days is England's largest festival of history and culture. For ten days, 11–20 September 2026, thousands of places open their doors completely free — historic buildings, hidden spaces normally closed or ticketed, guided walks, talks and family-friendly events. The National Trust runs it, but most participating sites are independent places not usually open to the public — which is the real draw.

Don't leave it until September. Many popular sites release their limited free places over the summer and they book up fast — people report big-name venues already fully booked months ahead.

How to Claim

1. Click the link on this page to open the official festival site.
2. Search for events near you (filter by location and date).
3. On each listing, tap the booking button in the blue box — it tells you whether you need to pre-book or can just turn up, or shows the date booking opens.
4. Reserve the popular sites as early as you can.

Requirements

• No sign-up, payment or membership needed
• Many events have limited free places that must be booked in advance

Important Terms

• Entry is free; this is a not-for-profit festival run by volunteers.
• Events run only during the 11–20 September 2026 window.
• Covers England only — listings vary by location and year.

Tips

• Book early — free places for sought-after sites (e.g. Bletchley Park, HMS Alliance in Portsmouth, Tyntesfield and Dyrham near Bristol) go quickly.
• If something's fully booked, check back: some sites release more places, and others only open booking nearer the time.
• Filter by date as well as distance — many sites only open on specific days within the window.