Coaction Training CIC | Passivhaus Training Provider UK

Practitioner-led Passivhaus training

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Learn from the UK's Passivhaus experts

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Proud to be official partners of the Passivhaus Trust.

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Training construction professionals to meet the climate emergency.

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Popular Passivhaus courses

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Certified Passivhaus Designer

Certified Passivhaus Tradesperson

Bitesize Low Energy Design

Latest Blog Posts...

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In-person course: Building to Perform - Introduction

Join low-energy experts Coaction and SIGA on-site in High Wycombe for a dynamic, hands-on day exploring how construction professionals can deliver real building performance on site.

Published on 19/02/2026

Written by Tabitha Binding

New - Modular Certified Designer course!

Do you need a Passivhaus top up? We now offer our Certified Passivhaus Designer course as modules and there are PHI renewal points available too.

Published on 17/02/2026

Written by Tabitha Binding

Is Passivhaus Still Relevant?

With heat pumps and a decarbonising grid, is Passivhaus worth the extra effort?

Published on 08/01/2026

Written by Nick Grant

What our learners think

"The Bitesize course is very helpful to reassess basic design approach to any project, small or large."

Alan McKay
Architect
Alan McKay Architect

"The course has given me the confidence to ask the right questions if I feel the design isn't the most efficient and cost-effective way for the client."

Steve Hall
Manager
W T Hall Builders

"Building physics occur in our projects whether you understand them or not. This course gives you Jedi levels of understanding."

Seb Laan Lomas
Associate & Passivhaus Designer
Architype Architects

"Dive in with a curious mindset! It's going to be a challenging but rewarding few weeks! Guarantee you'll love the course, and the trainers will be there to keep things fun and engaging."