Register for Open House: Your Guide to London’s Biggest Architecture Event

When you register for Open House, you’re not just signing up for a tour—you’re unlocking access to over 800 buildings across London that are usually off-limits. This annual event, run by Open House London, a citywide festival that opens public and private buildings to explore for free, turns the capital into a living museum. It’s not just about grand cathedrals or famous offices. You’ll walk through secret rooftops, historic warehouses, modern tech hubs, and even private homes that tell the real story of how London lives, works, and evolves.

What makes Open House different is how it connects people to the spaces they pass every day but never see inside. London architecture events, like Open House, focus on accessibility and public engagement with the built environment—whether it’s a 19th-century pumping station turned community center or a glass-walled startup loft in Shoreditch. The event also highlights public building tours, guided walks led by architects, historians, and residents who explain design choices, challenges, and stories behind the walls. You don’t need to be an expert. You just need curiosity. And a confirmed spot—because popular buildings fill up fast.

Registering isn’t just about picking a building. It’s about choosing an experience. Some tours focus on sustainability—like a zero-carbon housing project in Hackney. Others reveal hidden engineering, like the Victorian sewers beneath the City. You might find yourself in a former bank turned art gallery, or a school designed by a Nobel-winning architect. The event includes London design festivals, collaborative exhibitions where local creatives showcase how space shapes culture, from lighting installations in underpasses to pop-up libraries in abandoned shops. These aren’t just events—they’re conversations about who gets to shape the city.

If you’ve ever walked past a building and wondered what’s inside, Open House is your chance to find out. You’ll meet neighbors, architects, and city planners who care about how places feel, not just how they look. And you’ll leave with more than photos—you’ll understand why certain streets work, why others don’t, and how small changes can make a big difference. The best part? Most events are free, but registration is required. Don’t wait until the last minute. The buildings you want to see will be gone before you know it.