AECB Approved Certifiers and Modellers
Please visit our certifiers page if you wish to see the qualifications and criteria that AECB Approved Certifiers and Modellers must meet.
This is a new process for 2023, if you have a current project you wish to certify on the old scheme please contact us to discuss certification services.
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Keri Barr
New Build Standard, Retrofit Standards & Modeller
Hertfordshire, Buckinghamshire, Bedfordshire, North London
AECB Approved Certifier: Keri Barr
Services as a Certifier/Modeller
At Keri Barr Architects we especially enjoy making happier and smarter spaces; with plenty of natural daylight and greenery. Our design focus is on the people, site, climate, context and materials – to produce spaces that are enjoyable to use and healthy to occupy. We are specialists in retrofit and low carbon construction.
Relevant Experience
We work on private homes, often extending and remodelling them in conjunction with staged or full thermal upgrades - always with the health of the building as well as the health of the occupants in mind.
Qualifications
Chartered Architect – ARB & RIBA
Certified Passivhaus Designer – CEPHD
AECB CarbonLite Retrofit graduate
Regions or towns/cities to carry out AECB certification services
Hertfordshire, Buckinghamshire, Bedfordshire, North London
Contact Email Address
Tom Reynolds
New Build Standard & Modeller
UK wide
AECB Approved Certifier: Tom Reynolds
Services as a Certifier/Modeller
Experienced building energy and carbon modeller with experience of PHPP, IES Apache, & SAP. Highly experienced in Psi-Value calculations, condensation risk calculations and embodied carbon/whole life cycle assessments.
Relevant Experience
Tom has been using PHPP since 2009 and have acted as modeller and consultant on a number of schemes that have progressed to full certification. These have included self-build and larger scale social-housing schemes.
Qualifications
ABBE Level 4 thermographer (PCN Level 2 equivalent)
OCDEA and Member of the Chartered Institute of Building
Regions or towns/cities to carry out AECB certification services
Nationwide
Contact Email Address
tom.reynolds@mesbuildingsolutions.co.uk
James Rixon
New Build Standard, Retrofit Standards & Modeller
London, Cambridge and the South East
AECB Approved Certifier: James Rixon
Services as a Certifier/Modeller
Rixon Architecture specialises in retrofit and low energy design working both independently or alongside other consultants to deliver low carbon construction projects.
Relevant Experience
As both Architects with passivhaus training and Retrofit Coordinators we have worked delivering retrofit for small and large schemes.
Qualifications
Chartered Architects - ARB/RIBA
Level 5 Diploma of Retrofit Coordination - STROMA / Trustmark
AECB CarbonLite Retrofit Graduate
Certified Passivhaus Designer
Regions or towns/cities to carry out AECB certification services
London, Cambridge and the South East
Contact Email Address
Patrick Osborne
New Build Standard, Retrofit Standards & Modeller
South East England
AECB Approved Certifier: Patrick Osborne
Services as a Certifier/Modeller
Patrick has worked on a number of Passivhaus and Low Energy Buildings over the last decade, and can provide PHPP and design advice as appropriate.
He can also produce thermal bridging details and optimization for new build and retrofit projects.
Relevant Experience
I have worked on Certified Passivhaus projects (4 Hiley Road London, Lucy Cavendish college) and currently Passivhaus Designer for a new apartment block in Worthing. I have also produced a number of PHPP models, and was Project Architect for 3 school staged retrofits for Lewisham Council.
Qualifications
Chartered Architect
Certified European Passivhaus Designer
AECB CarbonLite Graduate
Level 5 Diploma in Retrofit Coordination and Risk Management
AECB RIBA and ARB Member
Regions or towns/cities to carry out AECB certification services
South East England
Contact Email Address
Camilla Govan
New Build Standard, Retrofit Standards & Modeller
Huddersfield, Bradford, Leeds, Manchester
AECB Approved Certifier: Camilla Govan
Services as a Certifier/Modeller
Unfortunately, I have no capacity for new certification projects at present.
I am particularly interested in retrofit and enabling the building physics literacy to be spread across stakeholders, regardless of their formal training. I enjoy collaborating and thinking outside the box. I am interested in looking at how to use less toxic materials, while keeping a focus on thermal performance. I see modelling as a powerful design tool.
Relevant Experience
I am a recently qualified Passivhaus Consultant and AECB CarbonLite Retrofit graduate who has been involved in Passivhaus & advising on airtightness and thermal bridging for over 10 years. I helped to deliver the initial AECB CarbonLite course in 2016 & worked for Green Building Store 2009-22. I now work for People Powered Retrofit in Manchester part time as a retrofit designer (July 2023).
Qualifications
Certified Passivhaus Consultant
AECB CarbonLite Retrofit graduate
Member of the Passivhaus Trust
AECB Member
Regions or towns/cities to carry out AECB certification services
Huddersfield, Bradford, Leeds, Manchester
Contact Email Address
Dushyant Karnik
New Build Standard, Retrofit Standards & Modeller
London, Oxford, Bristol, Cambridge, Norwich and South East England
AECB Approved Certifier: Dushyant Karnik
Services as a Certifier/Modeller
I am a sustainability and environmental design professional. Experienced in new build /retrofit residential/commercial buildings, decarbonisation of historic university buildings, energy and net zero strategies, building services & fabric consultancy and building performance modelling.
Relevant Experience
I have worked on several Passivhaus/EnerPHit/AECB Building standard projects across the UK. I believe in designing using the fabric first approach to deliver net zero developments while maintaining a balance between energy reduction, occupant comfort and wellbeing.
Qualifications
Bachelor of Architecture, MSc. Construction Management,
Certified European Passivhaus Designer,
AECB CarbonLite Retrofit Graduate
Regions or towns/cities to carry out AECB certification services
London, Oxford, Bristol, Cambridge, Norwich and South East England
Contact Email Address
dushyant.karnik@qodaconsulting.com
Sarah Price
New Build Standard, Retrofit Standards & Modeller
UK wide
AECB Approved Certifier: Sarah Price
Services as a Certifier/Modeller
My aim is to achieve the best building for people and our environment within the constraints of each project. We can offer AECB Consultancy and Certification, Passivhaus Consultancy & Certification and a range of complimentary building physics & net zero carbon services.
Relevant Experience
I have worked on over 90 certified Passivhaus dwellings across the country including the first Passivhaus leisure centre, and the construction stage of the largest Passivhaus development in the UK. I'm also a Retrofit Coordinator and Technical Author for PAS 2035/2030.
Qualifications
Passivhaus Consultant & Certifier
AECB Retrofit Consultant & Certifier
Retrofit Coordinator
CEng IMECHE
PhD Physics
Regions or towns/cities to carry out AECB certification services
UK wide
Contact Email Address
John Stack
New Build Standard, Retrofit Standards & Modeller
London, South East
AECB Approved Certifier: John Stack
Services as a Certifier/Modeller
I am an Architect and PassivHaus Designer who has been involved in retrofit of existing dwellings since 2010. For the past few years my focus has been on whole house retrofit including the retrofit of historic / Listed buildings.
Relevant Experience
Refurbishment of traditionally built properties via IWI, EWI, retrofitting of roof and floor construction; Low energy heating system and low energy services.
Qualifications
PassivHaus Designer
AECB CarbonLite Graduate
AECB Retrofit Co-ordination Graduate
Enrolled on Level 5 Diploma Retrofit Co-ordination and Risk Management
Regions or towns/cities to carry out AECB certification services
London/South East
Contact Email Address
Jonathan Davies
New Build Standard & Modeller
South West England, Wales
AECB Approved Certifier: Jonathan Davies
Services as a Certifier/Modeller
As part of Spring Design Consultancy, I am able to offer energy modelling and certification of projects targeting the AECB CarbonLite Standard.
Relevant Experience
I was an architectural designer and energy modelling consultant on Parc y Rhodyn, the first off-grid certified Passivhaus in the UK. My focus at Spring is to reduce the heating demand and carbon intensity of social housing.
Qualifications
Certified Passive House Designer
BDesArch(Hons I + Medal), MArch
AECB Member, PHT Member, SBUK Founding Member
Regions or towns/cities to carry out AECB certification services
South West England, Wales
Contact Email Address
jonathan.davies@spring-consultancy.co.uk
Eric Fewster
New Build Standard, Retrofit Standards & Modeller
UK wide
AECB Approved Certifier: Eric Fewster
Services as a Certifier/Modeller
I have been specialising in planning deep retrofits since 2013. My work involves site surveys, PHPP modelling, thermal bridge modelling, costing, coordinating with other specialists (moisture, structural, ventilation, heat pump), and project management.
Relevant Experience
I have worked on more than 60 projects at different levels and types, from full master planning to EnerPHit level, to being part of the builder team on site daily for months, to advising architect firms on PHPP or thermal bridge details.
Qualifications
Certified European Passivhaus Designer
AECB CarbonLite Graduate
Chartered Water & Environmental Manager
Chartered Environmentalist
Regions or towns/cities to carry out AECB certification services
Nationwide
Contact Email Address
Mark Siddall
New Build Standard, Retrofit Standards & Modeller
Large projects (>£1m) UK wide, Small projects: North East England
AECB Approved Certifier: Mark Siddall
Services as a Certifier/Modeller
Whether it is a new build or a retrofit, as an AECB certifier I provide:
Design reviews and advice
Site inspections and reports
PHPP calculations
2D Thermal bridging calculations
Relevant Experience
Architect with over 30 years experience
Passivhaus Designer with over 14 years experience
Technical advisor to the AECB and Passivhaus Trust
Author of peer reviewed guidance, articles and papers on building performance
Completed over 30 Passivhaus dwellings
Certified 12 AECB Building Standard
Qualifications
Passivhaus Designer
Architect: BA (hons), BArch
HNC Building Studies
ONC Building studies
Passivhaus Trust
AECB
RIBA
Regions or towns/cities to carry out AECB certification services
Large projects (>£1m) National , Small projects: North East England
Contact Email Address
Jaime Moya
New Build Standard & Modeller
All Wales, Midlands, South West of England & M4 corridor
AECB Approved Certifier: Jaime Moya
Services as a Certifier/Modeller
In addition to AECB CarbonLite Standard certification & modelling, Jaime provides design consultancy services. These services include spatial and envelope design, specification & review alongside PHPP modelling and review for cost-effective solutions to both new and retrofit low energy housing.
Relevant Experience
A Chartered Architect for over 20 years, Jaime has over 25 years of experience in estate regeneration & housing. Jaime is an expert in the technical & regulatory framework for social housing & has advised Welsh Govt on a heating demand based compliance approach to energy efficiency for new homes.
Qualifications
Registered Architect (ARB)
Chartered Architect (RIBA)
Certified Passive House Designer
AECB CarbonLite Graduate
AECB Member
Regions or towns/cities to carry out AECB certification services
All Wales, Midlands, South West of England & M4 corridor
Contact Email Address
jaime@spring-consultancy.co.uk
John Butler
New Build Standard, Retrofit Standards & Modeller
Where site visits are required: South/South West of England. UK wide where site visits not required.
AECB Approved Certifier: John Butler
Services as a Certifier/Modeller
Enabling low-carbon high-comfort building and retrofit.
AECB modelling and certification.
Passivhaus/EnerPHit modelling and consultancy.
Guidance, advice, consultancy, energy and whole-life carbon calculations for architects, self-builders and commissioners.
Relevant Experience
Hands-on experience of retrofit and new-build, combined with technical knowledge of materials, thermal comfort, building physics, and environmental impact of construction. Evidence led decisions, testing assumptions, and ensuring the best solution for clients, their buildings and the environment.
Qualifications
Certified Passivhaus Consultant
AECB CarbonLite Retrofit Foundation course
MSc Sustainability Adaptation and the Built Environment
Member of: Passivhaus Trust, iPHA, AECB
Regions or towns/cities to carry out AECB certification services
Where site visits are required: South/South-west of England. Nationally where site visits not required.
Contact Email Address
john@sustainablebuildconsultancy.com
Gervase Mangwana
New Build Standard, Retrofit Standards & Modeller
Within 150 miles of Hereford
AECB Approved Certifier: Gervase Mangwana
Services as a Certifier/Modeller
Gervase uses PHPP and SAP based tools for creating as found baseline energy models of retrofit projects.
Then create several scenarios of possible options to help them choose their retrofit path. Including the longer term potential of the property as apart of a whole house plan.
Relevant Experience
Gervase has been doing building energy models since 2011 using SAP based tools. He has helped Carbon Co op develop the SAP based tool now used by People Powered Retrofit and others. Since CEPH qualification in 2019 he has used PHPP for many clients where greater degree of specificity and/or overheating is needed.
Qualifications
Passivhaus designer qualified 2019
Elmhurst Airtightness tester
Passivhaus Trust Member
AECB member
CarbonlLte Retrofit Course qualified 2017
MSc Renewable Energy and Built Environment
Regions or towns/cities to carry out AECB certification services
Within 150 miles of Hereford
Contact Email Address
info@waxwingenergy.co.uk
Mitchell Finn
New Build Standard, Retrofit Standards & Modeller
UK wide
AECB Approved Certifier: Mitchell Finn
Services as a Certifier/Modeller
Certification to AECB Standard and AECB Retrofit Standards.
At Greengauge we can provide additional services including:
Passivhaus consultancy/certification
Thermal bridging calculations
SAP modelling
M&E consultancy
Overheating assessments
Relevant Experience
I have worked on many Passivhaus and AECB Building Standard projects across the UK, including complementary services such as overheating assessments, thermal bridging calculations and SAP calculations.
Qualifications
Certified Passivhaus Consultant
Retrofit Coordinator
On Construction Domestic Energy Assessor
Non Domestic Energy Assessor
Regions or towns/cities to carry out AECB certification services
UK wide
Contact Email Address
mitch@ggbec.co.uk
Grant McCowan
New Build Standard, Retrofit Standards & Modeller
Dundee and Angus; Perthshire; Fife
AECB Approved Certifier: Grant Mccowan
Services as a Certifer & Modeller
Site surveys, PHPP modelling, costing, coordination with other specialists (moisture, structural, ventilation, heat pump), project management, design and coordination based on PAS2035.
Relevant Experience
Architectural Technologist, experienced in design and project management, qualified as a Passivhaus Designer in 2021, on the AECB CarbonLite Retrofit Coordinator Course and providing retrofit advice collaboratively.
Qualifications
Architectural Technology Bsc (hons)
Passivhaus Designer
Regions or towns/cities to carry out AECB certification services
Dundee and Angus; Perthshire; Fife
Contact Email Address
grant@rtrfit.com
Konstantinos Megagiannis
New Build Standard, Retrofit Standards & Modeller
UK wide
AECB Approved Certifier & Modeller: Konstantinos Megagiannis
Services as a Certifier & Modeller
As a professional in the field of sustainable design, I am experienced in new build /retrofit residential/commercial buildings, energy strategies, building services, and embodied carbon. I specialise in fabric consultancy and have extensive experience in moisture risk assessments.
Relevant Experience
I have worked on numerous Passivhaus and EnerPHit projects across the UK. I have provided specialised consultancy related to assessing moisture risks in projects varying from residential to historic university buildings and product development and have co-authored peer reviewed guidance.
Qualifications
Passivhaus Consultant/Designer
AECB CarbonLite Retrofit Graduate
TU Dublin Hygrothermal Risk Assessment Graduate
MEng Civil Engineering
MSc Sustainable Architecture
Regions or towns/cities to carry out AECB certification services
UK wide
Contact Email Address
konstantinos.megagiannis@qodaconsulting.com
Paul Cayford
New Build Standard & Retrofit Standards
UK wide
AECB Approved Certifier: Paul Cayford
Services as a Certifier
We are able to offer strategic advice and design for comfort and energy efficiency, with PHPP modelling and certification of the AECB CarbonLite Standard, as well as design to Passivhaus & Enerphit standard.
Relevant Experience
Architect with a track record of successful large and small scale projects - residential commercial & education.
Co-author of RIBA Client Advisers’ Sustainability Briefing Requirements guidance.
Experienced with AECB and Passivhaus certification.
Qualifications
Chartered Architect - ARB/RIBA
RIBA Client Adviser
Certified Passive House Consultant
Level 5 Diploma of Retrofit Coordination
AECB Member
Regions or towns/cities to carry out AECB certification services
UK wide
Contact Email Address
info@cayford.com
Emma Mathias-Jones
New Build Standard & Retrofit Standard & Modeller
Based in Bristol but working UK wide with company offices in London, Oxford, Bristol, Norwich and Peterborough
AECB Approved Certifier & Modeller: Emma Mathias-Jones
Services as a Certifier and Modeller
Emma works within the Sustainability team specialising in net zero carbon strategies, building physics, fabric advice, and building performance modelling. . Emma has experience in both new build and retrofit buildings, from single dwellings to large multiple occupier buildings.
Relevant Experience
Emma utilises her architectural training to bring a holistic view of building design and low energy optimisation to each project using design tools such as PHPP and IES VE to optimise with a fabric first approach whilst optimising thermal comfort, embodied carbon and wellbeing.
Qualifications
Masters in Architecture and Environmental Design (MEng and RIBA Part 1)
Certified European Passivhaus Designer,
AECB CarbonLite Retrofit Graduate,
WUFI® Pro ‘hygrothermal’ introduction course
Regions or towns/cities to carry out AECB certification services
Based in Bristol but working UK wide with company offices in London, Oxford, Bristol, Norwich and Peterborough.
Contact Email Address
emma.mathias.jones@qodaconsulting.com
Rory Kennon
New Build Standard
Dumfries & Galloway, Scotland
AECB Approved Certifier: Rory Kennon
Services as a Certifier
For new-build projects I can provide the following:
Design advice to help minimise heat loss and energy usage to ensure compliance with the AECB Carbonlite Building Standard can be achieved.
Document site visits to ensure construction is in accordance with details / specification.
Relevant Experience
Over 25 years experience on a wide range of buildings; domestic and commercial with main focus on social housing. I have an interest in low-energy building design / technologies.
Passivhaus Consultant since July 2021 with involvement in 3no. PH housing developments to date - June 2023
Qualifications
Qualifications:
Chartered Technologist MCIAT
Certified Passivhaus Consultant
On-Construction Domestic Energy Assessor - Elmhurst Energy.
Memberships:
CIAT, Passivhaus Trust, iPHA and AECB
Regions or towns/cities to carry out AECB certification services
Dumfries & Galloway, Scotland
Contact Email Address
rkennon@rppmail.com
Nuria Fernandez Lopez
New Build Standard & Modeller
UK wide with company offices in London, Oxford, Bristol, Norwich and Peterborough
AECB Approved Certifier & Modeller: Nuria Fernandez Lopez
Services as a Certifier & Modeller
I work on a wide variety of projects developing the most appropriate energy strategy for each building through thermal modelling and analysis. Then I follow the developed strategy to achieve very low energy buildings and meet sustainability standards
Relevant Experience
I have over 9 years’ experience within the construction industry and specialise in Low Energy Buildings and Passivhaus Standard. I have worked on low energy new build and retrofit projects within different sectors including Residential, Education, Commercial, Community.
Qualifications
Certified Passivhaus Designer
MA Sustainable Design
BSc Building Engineering
Regions or towns/cities to carry out AECB certification services
UK wide with company offices in London, Oxford, Bristol, Norwich and Peterborough
Contact Email Address
nuria.lopez@qodaconsulting.com
Paul Mallion
New Build Standard & Modeller
Kent, West Sussex, South London
AECB Approved Certifier & Modeller: Paul Mallion
Services as a Certifier & Modeller
Individual houses or small developments, where sustainability is high on the agenda.
Relevant Experience
Chartered building surveyor specialising in designing sustainable buildings. Working to AECB standards since 2008, and the Passivhaus standard since 2004. Conker has completed 66 detailed energy assessments, 46 low energy new builds, 12 Passivhaus, 36 whole house retrofits, 4 AECB certifications
Qualifications
Fellow of the Royal Institute of Chartered Surveyors; BSc(Hons) Surveying; MSc(Arch) Environmental Design and Engineering; AECB CarbonLite training 2008; Certified European Passivhaus Designer 2011
Regions or towns/cities to carry out AECB certification services
Kent, West Sussex, South London
Contact Email Address
paul@conker.cc
Laura Meehan
New Build Standard, Retrofit Standards & Modeller
Bristol and surrounding areas and UK wide for remote work
AECB Approved Certifier & Modeller: Laura Meehan
Services as a Certifier & Modeller
We work with clients at early stages to help optimise the design for internal comfort using the Passivhaus Planning Package modelling system a physics-based approach to balancing the internal environment. With a special interest in retrofit and low-carbon materials.
Relevant Experience
Over 15 years experience working with architects within the sustainability sector, a balanced approach to measuring the impact of building designs and an enthusiastic approach to finding solutions that can reduce energy use of buildings that work.
Qualifications
AECB CarbonLite Graduate
Level 5 Diploma Retrofit Co-ordination and Risk Management Graduate
Postgraduate Diploma in Advanced Environmental and Energy Studies
OCDEA
Regions or towns/cities to carry out AECB certification services
Bristol and surrounding areas and nationally for remote work
Contact Email Address
laura@msustainability.co.uk
Ben Riddle
New Build Standard, Retrofit Standards & Modeller
UK wide
AECB Approved Certifier & Modeller: Ben Riddle
Services as a Certifier & Modeller
Ecospheric is an award winning consultancy that supports planners, architects and developers in designing and delivering pioneering developments that save carbon and drive technological change. We offer AECB Consultancy & Certification, Passivhaus Consultancy & a range of other supporting services.
Relevant Experience
I have worked on numerous (both Certified and in progress) Passivhaus, EnerPHit including the UK's first EnerPHit Plus. I have a lot of experience in modelling using software such as PHPP, Design PH, Design Builder & THERM. Projects range in scale from single house retrofit to hospitals.
Qualifications
Chartered Engineer (CEng)
Certified Passivhaus Consultant
Certified Passivhaus PHPP Expert
Certified Passivhaus Tradesperson
Regions or towns/cities to carry out AECB certification services
Uk wide
Contact Email Address
ben.riddle@ecospheric.co.uk
Alun Watkins
New Build Standard & Modeller
Wales, South West England, West Midlands
AECB Approved Certifier & Modeller: Alun Watkins
Services as a Certifier & Modeller
As part of Kalm Consultancy Services, I offer energy modelling using PHPP and certification of projects to the AECB Carbonlite Standard.
Relevant Experience
With experience in environmentally conscious building from 2002, and previous involvement with Passivhaus Certified projects as Contractor, Clerk of Works and Project Manager, I have been a Passivhaus Consultant and PHPP Modeller since 2021.
Qualifications
Certified Passivhaus Consultant.
RICS Certified Construction Project Manager.
Certified Value Manager
Regions or towns/cities to carry out AECB certification services
Wales, South West England, West Midlands
Contact Email Address
alun.watkins@kalmcs.co.uk
Junko Suetake
New Build Standard, Retrofit Standards & Modeller
Essex and Suffolk
AECB Approved Certifier & Modeller: Junko Suetake
Services as a Certifier & Modeller
I offer design and advice for Passivhaus and EnerPHit standards as well as AECB Standards on all stages of building projects for private, community and professional clients.
Relevant Experience
Architectural designer and Passivhaus Designer specialising in designing sustainable and comfortable buildings and their environments. 4 Certified Passivhaus on residential projects. AECB Standard on a community building project. Deep retrofit on residential conversion and extension projects.
Qualifications
Certified Passivhaus Designer 2012
AECB CarbonLite Retrofit Training 2016
AECB Member
UK Passivhaus Trust Member
RIBA Chartered Member
AIJ (Architectural Institute of Japan) Member
Regions or towns/cities to carry out AECB certification services
Essex and Suffolk
Contact Email Address
junko@suetake.co.uk
Joshua Wardle
New Build Standard & Modeller
UK Wide
AECB Approved Certifier & Modeller: Joshua Wardle
Services as a Certifier & Modeller
GT3 Architects is a practice that specialise in designing and delivering Large scale projects in a variety of sectors.
AECB modelling and Certification
2d Thermal Bridge analysis to BRE and PHI standards
Relevant Experience
Josh's aim is to provide a clear and achievable target for clients to achieve their low carbon and low energy goals. He has experience on a range of large scale commercial passivhaus projects, can offer consultancy & AECB certification, as well as social and economic sustainability for any project
Qualifications
Certified Passivhaus Consultant
Architectural Technologist
IBN building Biology Consultant
AECB Member
Regions or towns/cities to carry out AECB certification services
UK Wide
Contact Email Address
Jwardle@gt3architects.com
Simon Vickers
New Build Standard & Modeller
London and surrounding areas
AECB Approved Certifier & Modeller: Simon Vickers
Services as a Certifier & Modeller
As an Architect and Passivhaus Designer, my work is frequently focussed on improving our existing housing stock. I can provide full architectural services across all works stages, including, PHPP modelling, cost benefit analysis and thermal bridging calculations on new build and retrofit projects.
Relevant Experience
With over 20 years of architectural experience, I have worked on a range of new build and retrofit projects within the residential, educational and commercial sectors. My focus is on delivering cost affective, low energy projects which create comfortable and exciting spaces for the end user.
Qualifications
Passivhaus Designer
Architecture BA(Hons) and BArch
CPD Cert. Building Energy Modelling using PHPP
Fine Art and Mathematics BA(Hons)
Regions or towns/cities to carry out AECB certification services
London and surrounding areas
Contact Email Address
simon@vickersarchitects.com
Richard Bendy
New Build Standard, Retrofit Standards & Modeller
For new build - countrywide ; For retrofit - about 125 miles from Havant in Hampshire
AECB Approved Certifier & Modeller: Richard Bendy
Services as a Certifier & Modeller
For both new build and retrofit I provide:
Planning/design advice
Retrofit surveys/reports blower door/thermal camera leak diagnosis
PHPP calculations incl Part O compliance
Strategic services design
PHRibbon embodied carbon calcs
Part L SAP calcs
2D Thermal bridging calcs
WUFI calc
Relevant Experience
Low energy buildings consultant - 18 years experience
Passivhaus Consultant since 2013 - 1 certified Passivhaus LEB + 3 imminent + 2 Enerphit level retrofits
as an electrical/PV p & MVHR installer for 10 years
Designed and built own soon to be certified Passivhaus
Qualifications
Passivhaus Consultant
Carbonlite Retrofit
SAP Assessor
WUFI
Design Builder DSM
Previously:
NAPIT Electrical/PV panel installer
BPEC MVHR Installer
AECB Member
Passivhaus Trust Member
Regions or towns/cities to carry out AECB certification services
For new build - countrywide ; For retrofit - about 125 miles from Havant in Hampshire
Contact Email Address
richard@thehealthyhome.uk
James Traynor
New Build Standard, Retrofit Standards & Modeller
UK wide
AECB Approved Certifier & Modeller: James Traynor
Services as a Certifier & Modeller
I am a Passivhuas Designer and Retrofit Coordinator. As managing director of ECD Architects (www.ecda.co.uk) I am involved in numerous low energy projects across the UK. We offer a full range of Architectural and complementary services.
Relevant Experience
I aim to ensure that our buildings meet the needs of their occupants without compromising the needs of our planet. In my role I have led several large low-energy new build and retrofit projects and am author of "EnerPHit: A Step by Step Guide to Low Energy Retrofit" (RIBA) 2019.
Qualifications
Passivhaus Designer (CEPHD)
Retrofit Coordinator
Architect (RIBA: 7004758)
MSc Adavanced Energy & Environmental Studies (CAT)
BArch (Dist) University of Liverpool
BA(Hons) De Montfort University
Regions or towns/cities to carry out AECB certification services
UK wide
Contact Email Address
james.traynor@ecda.co.uk
Alex Clifford
New Build Standard, Retrofit Standards & Modeller
South East England
AECB Approved Certifier & Modeller: Alex Clifford
Services as a Certifier & Modeller
I aim to help clients achieve their goal of building or retrofitting a low energy home using Passive House methodology, mainly working on individual homes in Surrey and the South East. I undertake home surveys including thermal imaging, retrofit assessments, risk analysis, and PHPP modelling
Relevant Experience
I have worked as a designer for over 25 years in the domestic and commercial sectors on both client and builder/developer side. I have extensive experience in the complexities of retrofit with a particular interest in the use of natural materials.
Qualifications
Certified Passivhaus Consultant
AECB CarbonLite Retrofit Graduate
Level 5 Diploma in Retrofit Coordination & risk Management
Regions or towns/cities to carry out AECB certification services
South East England
Contact Email Address
Alex@alexclifford.co.uk
Robert Irving
New Build Standard & Modeller
Isle of Man and UK wide (size dependent)
AECB Approved Certifier & Modeller: Robert Irving
Services as a Certifier & Modeller
As a part of and principle in EnviroArchitecture, the Isle of Man’s first and leading sustainable and low energy building design firm. We provide AECB Consultancy & Certification, Passivhaus Consultancy, along with full architectural and specialist energy modelling services.
Relevant Experience
A Chartered Architect and Certified Passivhaus Designer, with over 15 years of professional experience. A proven track record of successfully managing a variety of projects for both private and public clients that adhere to the AECB, EnerPhIT, and Passivhaus standards.
Qualifications
Certified Passivhaus Designer
Bachelor of Science, Architectural Technology
Diploma in Architecture
Master of Architecture
ARB
RIBA
AECB
Regions or towns/cities to carry out AECB certification services
Isle of Man and UK wide (size dependent)
Contact Email Address
studio@enviroarchitecture.com
Catherine Hunt
Retrofit Standards
North Yorkshire, West Yorkshire, Cumbria, East Yorkshire
AECB Approved Certifier: Catherine Hunt
Services as a Certifier
I am a Chartered Architect with over 25 years experience. My design expertise is focused on the residential sector in both new build and retrofit projects.
Relevant Experience
As a practice we are involved in a lot or retrofit projects. Over the past few years, we have strived to champion the use of sustainable breathable materials and aiming to achieve the highest thermal standards as possible using the fabric first approach.
Qualifications
AECB CarbonLite Retrofit graduate
AECB Carbonlite Retrofit Coordinators Course
Member of the Passivhaus Trust
AECB member
M(Arch) Nottm
BA (Hons)) Nottm
ARB ID: 064841
RIBA ID: 10312555
Regions or towns/cities to carry out AECB certification services
North Yorkshire, West Yorkshire, Cumbria, East Yorkshire
Contact Email Address
catherinehunt@nichedesignarchitects.com
Hannah Dixon
New Build Standard, Retrofit Standards & Modeller
North West
AECB Approved Certifier: Hannah Dixon
Services as a Certifier
We are RIBA chartered architects and Passivhaus designers. We provide integrated design, PHPP modelling and advice on AECB projects, whether they are retrofits or new builds.
Relevant Experience
Projects we have worked on include:
- AECB Retrofit Level 2
- EnerPHit retrofits
- New build AECB homes
- New build Passivhaus Plus homes
- Passivhaus Schools
Qualifications
RIBA, ARB, ADPP, M.Arch, BA,
Regions or towns/cities to carry out AECB certification services
North West
Contact Email Address
info@progressinpractice.co.uk
Jon James
New Build Standard & Modeller
UK wide
AECB Approved Certifier: Jon James
Services as a Certifier
Director of our own Architectural Studio based in South Wales we have a focus on low energy buildings and provide PHPP modelling either alongside Architectural services or as an consultant support other design teams.
Relevant Experience
We are passivhaus consultants on 2 Primary schools in the south West of England and are currently working on a number of residential schemes that are prioritising low energy. This includes 50 mixed used unit schemes for local authorities and one off houses.
Qualifications
Architect BA (hons) PgDip RIBA
Passivhaus Designer
AECB & Passivhaus Trust Member
RIBA Conservation Architect Registrant
Regions or towns/cities to carry out AECB certification services
UK wide
Contact Email Address
jon@jjstudioarchitecture.co.uk
Oliver Henshall
New Build Standard & Modeller
UK & Ireland
AECB Approved Certifier: Oliver Henshall
Services as a Certifier
Passivhaus & EnerPHit consultancy
AECB modelling and certification
PHPP calculations
Full building design, inclusive of 'lead designer' coordination and project delivery.
Project / Design reviews and general advice
Relevant Experience
Successfully delivered 3 new build certified Passivhaus housing schemes within the south west.
Currently working through stage 3 design on a deep retrofit 'EnerPHit office refurbishment project.
Developed and lead on large scale zero carbon housing schemes
Qualifications
Sustainability & Innovation Director for Powell Dobson Architects
Certified Passivhaus Consultant
Passivhaus Trust Member
AECB member
Chartered Architectural Technologist (FCIAT)
Regions or towns/cities to carry out AECB certification services
UK & Ireland
Contact Email Address
oliver.henshall@powelldobson.com
Joshua Wood
New Build Standard & Modeller
South West England and Wales
AECB Approved Certifier: Joshua Wood
Services as a Certifier
Architect and Certified Passive House Designer. Founder and managing director of Green Trace Architect specialising in Eco-homes. PHPP modelling at the outset of the design process and throughput to ensure comfort and efficiency.
Relevant Experience
Became a Certified Passive House Designer in October 2023, having successfully completed the design and submission process for Hazel Tree Passive House. Studied and now lectures in Architecture and Environmental Engineering at UWE.
Qualifications
Chartered Architect
Certified Passive House Designer
Member of Architects Declare
Member of the AECB
Member of the Green Register
Lecturer at UWE
Regions or towns/cities to carry out AECB certification services
South West England and Wales
Contact Email Address
josh@greentracearchitect.co.uk
Magdalena Arent
New Build Standard & Modeller
Scotland
AECB Approved Certifier: Magdalena Arent
Services as a Certifier
Passivhaus/EnerPHit modelling and consultancy.
AECB modelling and certification.
Fabric Efficiency, Condensation Risk and Embodied Carbon consultancy.
Thermal Bridging modelling - THERM, TRISCO/SOLIDO software.
Relevant Experience
Building Performance Consultant experienced in PHPP/DesignPH modelling, Thermal modelling, Embodied Carbon assessments, Dynamic Simulations, Energy Assessments (SAP), Post Occupancy Evaluation, Internal Environment Monitoring and Site Surveys. Knowledgeable in environmental assessments.
Qualifications
Certified Passivhaus Consultant
On-Construction Domestic Energy Assessor - Elmhurst Energy
MSc Architectural Technology and Building Performance
Member of: Passivhaus Trust, iPHA, AECB
Regions or towns/cities to carry out AECB certification services
Scotland, nationwide if site visit not required.
Contact Email Address
magdalena.arent@holmesmiller.com
Piers Sadler
New Build Standard & Modeller
UK Wide
AECB Approved Certifier & Modeller: Piers Sadler
Services as a Certifier & Modeller
We provide design reviews, PHPP modelling and reviews, 2D and 3D thermal bridge modelling, construction guidance and bespoke consultations. As a certifier our experience is that discussion and Q&A is often the best way to resolve design queries.
Relevant Experience
Completed projects:
~ 60 AECB certified dwellings, 16 PH certified dwellings (1 EnerPHit) and 1 certified PH school
>50,000 m2 TFA Certified PH projects at all stages including low, mid- and high rise housing, primary & secondary schools and a school refurbishment (EnerPHit)
Qualifications
MSc Sustainable Building 2010
PH Designer 2013
PH Designer & Trades trainer (Coaction) since 2017, specialising in PHPP
AECB member since 2010
Passivhaus Trust Member since 2010
Regions or towns/cities to carry out AECB certification services
UK Wide
Contact Email Address
piers@delta-q.co.uk
Steven Coulsting
New Build Standard, Retrofit Standards & Modeller
UK Wide
AECB Approved Certifier & Modeller: Steven Coulsting
Services as a Certifier & Modeller
We provide:
- New build and retrofit consultancy
- Certification services
- PHPP calculations
- Thermal bridge calculations
- Design reviews and advice
- Site inspections and reports
- A range of sustainability and engineering services within the wider team including hygrothermal modelling
Relevant Experience
- Twenty-one years as a conservation architect
- Since then, worked on a range of retrofit and new build low carbon projects
- Various Passivhaus and EnerPHit projects either as architect or consultant
- Two large Passivhaus care homes
- A sixteen-storey tower block AECB retrofit project
Qualifications
Passivhaus Designer
ARB registered architect
BSc in Physics and Environmental Sciences
AECB member
Passivhaus Trust member
Regions or towns/cities to carry out AECB certification services
UK Wide
Contact Email Address
steven.coulsting@qodaconsulting.com
Kym Mead
New Build Standard & Modeller
UK Wide
AECB Approved Certifier & Modeller: Kym Mead
Services as a Certifier & Modeller
I am an independent consult specialising in low-energy buildings, offering impartial advice to industry professionals and self-builders. My aim is to reduce the energy demand for domestic and non-domestic buildings, whilst also providing excellent indoor air quality and comfort levels.
Relevant Experience
I have been a Passivhaus Certifier since 2009 certifying over a 150 developments which include small scale domestic and large scale non-domestic and retrofit projects. I have delivered Passivhaus Consultant training and authored guidance on the Passivhaus standard.
Qualifications
Passivhaus Certifier
Passivhaus Consultant
Passivhaus Trainer
Constructionline registered
Regions or towns/cities to carry out AECB certification services
UK Wide
Contact Email Address
enquiries@meadconsulting.co.uk
Gareth Davies
New Build Standard & Modeller
UK & Ireland
AECB Approved Certifier & Modeller: Gareth Davies
Services as a Certifier & Modeller
From outline concept design, services include energy performance analysis and strategy, embodied and operation carbon analyis, thermal and overheating simulation modelling, all relating to achieving the overal Client energy and carbon targets.
Relevant Experience
With over fifteen years post qualification sustainability experience of major capital projects, a certified European Passivhaus Consultant, and qualified CIBSE Low Carbon Consultant (LCC) for Building Design & Simulation (Levels 4 & 5).
Qualifications
MSc Sustainability, Planning & Environmental Policy
BSc Environmental Management
Certified PassivHaus Consultant
OCDEA
CIBSE Low Carbon Consultant (Design & Simulation)
NDEA
Regions or towns/cities to carry out AECB certification services
UK & Ireland
Contact Email Address
gareth@red-six.co.uk
Alan Budden
New Build Standard, Retrofit Standards & Modeller
UK Wide
AECB Approved Certifier & Modeller: Alan Budden
Services as a Certifier & Modeller
Alan and his team, offer full support to model & certify your project helping optimise each component, then what is required to meet a range of standards, and the upgrade required. Also phased approaches & whole house retrofit plans. Supporting your Architect or providing full architectural services.
Relevant Experience
Alan is a certified Architect & has been a certified PasivHaus designer since 2011, and worked on a number of Passivhaus and EnerPHit projects including to the Passivhaus Plus level & retrofit to full Passivhaus Classic Certification. He also certified one of the largest AECB schemes in the country.
Qualifications
Chartered Architect
Certified European Passivhaus Designer
Passivhaus Trust
AECB RIBA and ARB Member
Regions or towns/cities to carry out AECB certification services
UK Wide
Contact Email Address
alan@edc.eco
Ross Evans
New Build Standard, Retrofit Standards & Modeller
South East England. Primarily Kent & Canterbury.
AECB Approved Certifier & Modeller: Ross Evans
Services as a Certifier & Modeller
Comprehensive service combining my practical experience as a Passivhaus Tradesperson with theoretical understanding as Passivhaus Consultant and Retrofit Graduate. My specific focus is retrofit in traditional construction where my enthusiasm for natural materials and traditional skills can be used.
Relevant Experience
Began in straw bale construction developing understanding of natural materials in low energy buildings. Moved into historic conservation where skills and understanding were transferrable. Have continued to develop expertise in retrofit, PHPP & natural insulation options.
Qualifications
Certified Passive House Consultant.
Certified Passive House Tradesperson.
AECB CarbonLite Retrofit Graduate.
Regions or towns/cities to carry out AECB certification services
South East England. Primarlily Kent & Canterbury
Contact Email Address
ross@humanhabitat.uk
Peter Edwards
New Build Standard, Retrofit Standards
UK
AECB Approved Certifier: Peter Edwards
Services as a Certifier & Modeller
- Architect / Architectural Services - Passivhaus Designer - Retrofit Co-ordinator - Retrofit Designer |
Relevant Experience
- Qualified Architect since 2019 working on multiple public sector, sport and hospitality projects.
- Project architect on multiple Passivhaus CLT schools.
- Technical review and detailing of additional Passivhaus and Retrofit projects
- UK and International experience
Qualifications
- ARB Certified Architect
- Certified Passivhaus Designer
- Certified Retrofit Co-ordinator
- Company PHT Member
- AECB Member
- ACAN Member
Regions or towns/cities to carry out AECB certification services
UK
Contact Email Address
peter.edwards@holmesmiller.com