Passivhaus Open Days 2025: Winter edition

Date: 7 - 9 November 2025	Time: 3 consecutive days
Location: Nationwide	Cost: Free, booking essential.

Passivhaus Open Days

Participating projects | Register your project | FAQs

Every year, Passivhaus buildings across the UK generously open their doors to visitors. Whether you are a self-builder, a built environment professional or an individual interested in learning more about Passivhaus design, this event offers an invaluable opportunity to experience the comfort and quality of a Passivhaus. Meet and talk to the owners or professionals involved to find out more first-hand.

2025 Participating projects

(During the UK Passivhaus Open Days photography, audio, and video recording may occur. By attending this event, you consent to your image and/or voice being recorded and used in all media, including but not limited to news coverage, promotional materials, advertising, social media, and inclusion on websites. If you have any questions or concerns about this, please contact info@passivhaustrust.org.uk)

Register your project

Live in or worked on a Passivhaus project? Host an Open Day to share your experience! You decide when, how often, and how many visitors to welcome.

Once you’ve set up a booking form to collect visitor details, register with the Passivhaus Trust so we can list your event on our website and support your promotion of the tours via our platforms!

Check our FAQ’s for tips on making your tour a success.

How to take part:

1. Check your eligibility.

2. Create a project web page, or an event booking form*

3. Complete the online PHT Open Days registration form & upload 1-5 images

*Use any platform you like (e.g, Eventbrite, Ticket Tailor, Ticket Source). Include key details such as project info, location, tour times, and visitor contact details. See our booking form template for guidance or watch this helpful YouTube video for Eventbrite set up.

**Alternatively, provide a link to your Open Day on the International Passive House database

Thinking of building your own Passivhaus?

Passivhaus self builds have become more and more popular in recent years, with excellent examples emerging all over the UK. The best place to start is by checking out our Passivhaus goes Personal campaign, aimed at anyone contemplating building their own Passivhaus home.

Passivhaus goes Personal: Video credits

Frequently Asked Questions

General

Who can participate in the Passivhaus Open Days?

All building owners/building users/project teams with permission of Passivhaus buildings or those renovated to the EnerPHit standard, which have been calculated with the Passivhaus Planning Package (PHPP) can participate. Projects can be at various stages - from fully occupied & certified to under construction and aiming for certification.

Do visitors have to register?

We encourage all visitors to register for tours. Booking details will be specific to each tour & run by tour organisers, NOT the Passivhaus Trust. The properties that are opened are often private homes. Registration provides us and the owner with a level of assurance that the process is being managed with care. Some tours may operate a walk-in tour - please check all tour details.

Host

Am I eligible to host a Passivhaus Open Day?

Projects must be Passivhaus projects
Projects can be at various stages - from fully occupied to under construction
New or established, participating projects from any sector are welcome

Is there a participation fee?

No, registration and participation in the Passivhaus Open Days is free. (There are fees on Eventbrite to run free events, however alternative free platforms are available.)

Is there a limitation on attendee numbers?

No, however, we recommend a maximum of 10-15 attendees per host to safely guide large groups through a property. Participants must stay within the site of the host.

Which rooms in my building will visitors look at?

Those running the tours decide which rooms are shown to visitors and at what times. This will be dependent on several factors such as whether residents are in-situ etc.

How do I market my tours?

The Trust will promote & support the event but further help its appreciated to attract new people & maximise exposure. You could share your viewing via:

Social media
Through your website / Newsletter
Your local council newsletter
Your local area's environmental network/action groups

Can I run a site visit separate to the Open Days?

If you simply cannot make your tour dates align with the open days, yes, you can run a solo site visit. But, it will miss the branding of the Passivhaus Open Days, and inclusion in an international cohesive event run by a global joint community.

Attendee

Do I need to show a ticket to enter?

No, the host will have a list of names to confirm your registration.

When will the event address be sent to me?

To protect the privacy of some homeowners addresses are sent just before the event takes place at the discretion of tour hosts.

Is there any insurance coverage for visitors?

No, there is no special insurance coverage. If something in the building/apartment is damaged, the visitor or, if applicable, their liability insurance is liable.