London Open House 2026 preview goes live

It’s an early Christmas present for London architecture fans as the annual Open House London preview has gone live this morning.
Euston Tower – from the top of the BT Tower
The annual event sees hundreds of buildings open to the public for free, allowing visitors to wander in and take a look around. The vast majority are free to wander in and have a look around, but some are reserved for prebooked tours, and the very best will be in such high demand that they are allocated by ballot.