WHAT’S ON
Open House London: Dates & Visitor Guide
Choose a building because you want to see it, then check whether its visit needs a free reservation. An archive listing is not permission to turn up at a private building.

Make a plan around the right edition
Choose a building because you want to see it, then check whether its visit needs a free reservation.
An archive listing is not permission to turn up at a private building. Start with the announcement below, then decide whether you need admission, a reservation or a place along a public route.
A date in a search result can belong to a completed edition. Check the year on the organiser’s page before sharing it with your group or paying for travel.
Next edition: Dates to be confirmed — this source check needs review.
Edition announcement source checked . All times Europe/London. Separately dated archive notes retain their own checks.
Source review needed. This planning check is older than seven London days or unavailable. Older event checks are excluded below; verify current details with the linked organisers.
What is actually confirmed?
Open City says the 2026 festival ran 12–20 September and the 2027 dates will be announced. It says the next programme will appear in early summer and ticketed-activity bookings in mid-August. Until then the programme website displays 2026, not bookable 2027 visits.
The festival celebrates free public visits; a particular opening can require advance booking. No next-edition slot is claimed available.
Choose the right kind of day
Choose a building because you want to see it, then check whether its visit needs a free reservation. An archive listing is not permission to turn up at a private building.
Read the official announcement ↗
All annual events · Dated event calendar · Plan your journey · Read the completed 2026 edition
On this page
Keep your next step practical
Save the official page and the instructions that apply to your booking.
A festival window does not mean every activity happens every day, and a tournament date does not identify a particular match. If the timetable is not published, leave the exact start out of your plan rather than filling the gap with last year’s time.
Build a day that still works
Pick one nearby place for a break and agree how your group will get home.
For access needs, check the event entrance and the transport journey separately; a familiar station does not guarantee a step-free route to the viewing area. The transport guide explains the options, but the operator’s current notices and the organiser’s arrival instructions control the actual journey.
Questions, answered
Is the next edition confirmed?
Dates to be confirmed. Open City says the 2026 festival ran 12–20 September and the 2027 dates will be announced. It says the next programme will appear in early summer and ticketed-activity bookings in mid-August. Until then the programme website displays 2026, not bookable 2027 visits.
Does this page guarantee a ticket?
No. An official edition announcement is different from an available ticket, reserved slot or invitation. Use the organiser’s current booking instructions.
Can I use an old programme to plan the visit?
Use it for background only. Routes, buildings, sessions, access and admission can change between editions; wait for the current instructions before relying on those details.
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