Who we are and what we do
We exist to upskill the built environment - for impact, not for profit.
- professionals trained to design and build better buildings
- 6,000+
- teaching Passivhaus and low-energy building in the UK
- Since 2009
- social enterprise, with every surplus reinvested in training
- CIC
Our vision
We want to help create better buildings by sharing the knowledge and skills that make them possible. The challenges facing our climate and communities are significant, but so is the opportunity to make a difference. We work with designers, contractors, educators and professionals across the UK construction industry to improve building performance and drive positive change.
Since 2009, we've trained more than 6000 learners. Originally CarbonLite Passivhaus Training, in 2023 we relaunched as Coaction Training CIC, embedding our commitment to social and environmental impact. As a social enterprise, every surplus we generate is reinvested into developing industry-leading training that helps future-proof our built environment.
Our approach
Buildings account for 25% of UK carbon emissions. We teach the principles, processes and practical skills that underpin high-performance buildings. Drawing on Passivhaus and other proven approaches, our training helps built environment professionals improve quality, reduce risk and deliver better outcomes on every project.
Why learn with us?
Our courses are designed and delivered by practitioners who've spent years solving these challenges on real projects. You'll leave with practical knowledge, greater confidence and tools you can apply straight away, whether you're designing, building, teaching or commissioning buildings.
Our trainers
Our trainers don't just teach building performance, they deliver it. We've worked on some of the UK's highest-performing buildings and bring that real-world experience into every course. We're passionate about sharing what we've learned to help raise standards across the industry.
What we do
Learning built on real experience
Our courses bridge the gap between theory and practice. Grounded in real projects and first-hand experience, Coaction training will give you the confidence, skills and insight to deliver better-performing buildings with less risk.
- Learn from practitioners who've faced the same challenges on their projects
- Interactive workshops to deepen your knowledge
- Material tailored to UK approaches
- A growing community for post-course support
Training for all building standards
Firmly based on the proven Passivhaus approach, our training is equally applicable to other standards including AECB, UK Net Zero Carbon Building Standard, Scottish programmes, LETI and NABERS.
- Practical-led learning that transfers across standards
- Knowledge that you can bring to all building types
- Applicable to new build and retrofit projects
Our impact & partnerships
We work closely with many industry organisations but our learners say it best.
- Official partner
“The course allowed me to start a new position as Passive House Consultant!”
Pedro Bravo NavarroPassive House Consultant, Warm: Low Energy Building Practice“I thank the trainers for sharing their practical experience with us, sometimes that helps more than theory.”
Gaia D'AbroscaArchitect, Allies and Morrison Architects
Meet our team
Collaboration, or "coaction", between our trainers and operations team sits at the heart of what we do. Together we support, adapt and grow to deliver courses with real impact.
Our trainers
Our team of trainers are all experienced practitioners at the forefront of low energy building and design. Including many of the original pioneers of Passivhaus in the UK, their wealth of experience and passion for driving change informs our carefully curated learning programme.
Eric Parks
Architect, Passivhaus Designer, Building Performance Specialist - John Gilbert Architects
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Kirsty Maguire
Director, Passivhaus Designer & Certifier - Kirsty Maguire Architect Ltd
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Nick Grant
Principal Energy Consultant - Elemental Solutions & Technical Director - PHT
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Dr Sarah Price
Building Physicist, Passivhaus Consultant & Certifier - Spruce Consulting
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Our operations team
Based in our Plymouth office, working closely with our trainers to give every learner a focused experience.
Bex KingCommunications Manager
Emma BraunHead of Training
Ingrid BravoTraining Manager
Lily UrbanskaTraining Manager
Tabitha BindingCoaction Development Manager & Education Associate for The Passivhaus Trust
Join our growing community
Learn with practitioners, then keep learning alongside them.