

We help create healthy, comfortable, radically energy-efficient buildings—public and commercial buildings as well as homes. Our clients include architects, designers, developers, building component suppliers and manufacturers, regulators, government and homeowners.
We are experts in the Passive House (Passivhaus) standard as designers, certifiers and consultants.



Passive House education
We provide live and on-demand education for architects/designers, engineers, builders and allied trades, instilling theoretical and practical skills in high-performance building.

Passive House information library
We offer a huge library of reference material and news. Learn about the services we offer using software like PHPP, WUFI and DesignPH.
Case Studies
Browse our showcase of certified Passive House projects in New Zealand.
Featured articles
Estimating energy-efficient HVAC system costs for New Zealand homes
Managing moisture in mass timber: Please don’t leave it in the rain
Live online Passive House tradesperson training starts mid-April
Selling solar and Passive House: Framing matters more than the math
Test drive your home’s energy performance with a Performance Snapshot

Key resources
We have a range of books and other resources available to assist people wanting to develop their sustainable building practices including:
- Passive House Primer (for designers)
- Passive House for New Zealand (digital book)
- High-Performance Construction Details Handbook (for designers and builders)



