Our trainers are time-served designers and engineers who have put Passivhaus principles at the heart of their practice. They continue to expand their knowledge on current projects and to pass on their experience to our delegates.

Our team consists of:

Bill Butcher

Director of Green Building Store and Green Building Company, Bill Butcher was project leader of the Denby Dale Passivhaus project. Originally trained as a quantity surveyor, he has over 35 years building experience, including construction of the Longwood low-energy house in the early 1990s.

Through his regular fortnightly Passivhaus diary blog, written for Building.co.uk, Bill sought to make Passivhaus construction methods accessible and easily understandable for the wider construction industry. Bill is also actively campaigning to introduce the Passivhaus approach in the UK and improve the regulatory framework to facilitate the uptake of Passivhaus design.

Alan Clarke

Alan Clarke

Alan Clarke is an energy and building services engineer specialising in Passivhaus design, building on long experience of low energy and ecological construction. His Passivhaus projects include individual and group housing, schools, community centres and offices.

In addition to design work he is involved in detailed monitoring of several of these projects which are now completed and occupied, learning invaluable lessons about the real life performance of low energy buildings.

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Sally Godber

Sally’s early career as a building services engineer focussed on renewable and low energy systems for a diverse range of sectors including historic, industrial and educational buildings. Life as a services engineer was too easy-going so she set up WARM with her father Peter in 2009. WARM is an energy consultancy providing Passivhaus design advice and certification but also dabbles in building services, training, monitoring and anything else that improves the built environment and looks interesting.

Sally particularly enjoys creating buildings with good internal comfort, preferably without extra cost.

Nick Grant

Nick Grant

Nick Grant, the Principal of Elemental Solutions, is a sustainable building consultant with a lifelong passion for doing more with less. Nick has worked on several Passivhaus schools including some of the first in the UK. With Alan Clarke he is pioneering a new approach to Passivhaus archive and museum storage buildings. He has provided Passivhaus consultancy for numerous housing projects from low budget self-build to city flats and co-housing developments. He is a keen theoretician but also a practical engineer and self builder. He is the Technical Director of the Passivhaus Trust.

Eric Parks

Eric Parks

Eric Parks is an Architect and Certified Passivhaus Designer who has specialised solely in the field of ecological design and sustainable construction in both the US and UK. He has experience in research, development and prototyping of sustainable building systems with CMPBS in Austin, Texas.

In the UK, Eric’s architectural training and experience has taken place with two of the UK’s leading sustainable design specialists, Simmonds Mills: Architects, Builders and Eco Arc. Currently, Eric runs his own architecture practice and sustainable building consultancy.

Mike Roe

Mike worked for Hoare Lea as a building services engineer for many years involved in the design of schools, offices and healthcare buildings in the South West. Having discovered Passivhaus and become a Certified Passivhaus Designer, Mike decided a change was need and wanted to find a way to focus his energy on this. In 2013 Mike decided the best way to do this was to join Pete and Sally at WARM.

Mike is interested in making low energy buildings more mainstream and an affordable option to more people. On the rare occasions when not using PHPP, Mike can be found paddling and sailing around Plymouth Sound.

Marine Sanchez

As principal building physics engineer, Marine has led on the design of Enhabit’s Passivhaus projects since 2011. She has a particular focus on the site delivery of high performance buildings (new-build and retrofit), which started with the completion of the first EnerPHit retrofit in London. She specialises in fabric efficiency and moisture risk management. Marine also works with the AECB as a trainer on the Passivhaus designer course, and acts as an adviser on the CIBSE Board Building Performance Strategy group and UK Centre for Moisture in Buildings. Marine holds a Master’s in Sustainable Building, Performance and Design from the Oxford Brookes School of Architecture and a Master’s in Engineering from Ecole Centrale de Nantes in France.

Mark Siddall

Mark Siddall

Mark Siddall, of LEAP: Low Energy Architectural Practice, is a practicing architect with a keen interest building performance. Issues of usability and practicality inform his approach and have increasingly led to an appreciation of the need for an integrated, consensus based, design process.

He was project architect, and Passivhaus Designer, for 25 award winning, Passivhaus Certified dwellings at the Racecourse Estate, Houghton-le-Spring. He was also project architect on a number of award winning Retrofit for the Future projects that targeted an 80% reduction in carbon emissions. Mark is a technical advisor to the PassivHaus Trust and a part time lecturer at Northumbria University.

In addition to offering architectural services LEAP provides consultancy, energy analysis, project enabling and training for clients, design teams and constructors. To find out more visit www.leap4.it.

Will South

Will South

Will is an Engineer, Passivhaus Designer and Passivhaus Certifier. He is a founding member of Cocreate Consulting and works for Etude as a consultant Engineer.

Will is interested in making buildings better through careful design, and practical application. His experience ranges from design detail drawing to installing MVHR ventilation systems to Passivhaus Certification assessment.

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Peter Warm

Peter has over 30 years’ experience in low energy buildings and is one of three practicing UK Passivhaus certifiers. He has built five of his own low energy buildings and is a Passivhaus enthusiast!

“I am fascinated by the challenge of making the theory of low energy, airtight, insulated construction work in practice. I have spent my life seeking to understand energy use in buildings so that we can live very comfortably using fewer resources.”