Open Days registration summer 2026 is now open!

Join the 2026 Summer Passivhaus Open Days and be part of a nationwide celebration of comfort, efficiency, and low-energy living during the 2026 Summer Passivhaus Open Days, taking place from 22–28 June 2026.

Host a tour & share your Passivhaus story!

Do you live in, design, or build Passivhaus projects? We’re inviting hosts across the UK to open their doors and inspire others to experience the benefits of ultra-low-energy design firsthand.

Whether you’re showcasing a home, construction site, retrofit, or commercial building, the Open Days offer a unique opportunity to connect with people interested in better buildings and sustainable living.

As a host, you stay in full control, choose your own tour times, visitor numbers, and booking method. By registering your project with the Trust, you’ll also benefit from:

Promotion through our national communication channels
New client connections and networking opportunities
A platform to showcase your work and raise your profile
The chance to help grow awareness of Passivhaus across the UK

Coinciding with London Climate Action Week, this year’s Open Days will run for a full week, giving even more visitors the chance to discover high-performance buildings in person.

Join us from 22–28 June 2026 and help demonstrate what comfortable, low-energy living really feels like.