Passivhaus Affiliate

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Membership of the Passivhaus Trust is open to anyone and does not necessarily imply achievement of the Passivhaus standard for buildings or components, or attainment of Passivhaus-related qualifications. Members of the Passivhaus Trust listed include architects, consultants, contractors, manufacturers and other industry professionals, as well as individuals, who support the work of the Trust in promoting the Standard in the UK.

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Hala Alramadhi O'Reilly


A highly accomplished architect, interior design and development professional with more than 20 years’ experience on the consultant, owner and brand sides of hotel design, construction and development, Hala has played a key role in an impressive roster of high-end, mixed use, commercial and hospitality projects in the Middle East. A graduate of De Montfort University, Leicester and University College Dublin, with formative stints as architectural assistant at top firms Gensler and WATG, Hala has experience in driving multi-cultural teams to deliver consistently high-quality, environmentally-efficient and commercially-viable projects on time and within budget. Hala is also a Certified Passivhaus Designer/ Consultant as well as a Certified Passivhaus Tradesperson, and is an advocate of Green Building Design and NZEB principals.

Halliday Fraser Munro


Halliday Fraser Munro is an award winning architecture and planning practice with six offices across the UK, including Aberdeen, Glasgow, Edinburgh, Dundee, Leeds and London. It delivers projects proactively and effectively across the commercial, educational, residential, leisure and retail sectors, working for some of the UKs largest and most established companies. Halliday Fraser Munro offers a full range of services through its experienced consultancy team, from urban design to masterplanning and landscape architecture to project management. And, as a firm, it has recently been recognised as carbon neutral with sustainability lying at the heart of everything it does.


Hamson Barron Smith Ltd


NPS is a national property consultancy with 28 offices across the UK. Working in both the public and private sector, we have extensive experience of designing, adapting and procuring an extensive range of properties. We aim to deliver innovative and sustainable solutions to our clients and offer a complete turnkey solution: design - development - construction. Our projects are about future-proofing each new community and environment by reducing the overall energy demand and carbon footprint. Our benchmark is to raise the bar in providing sustainable homes by deploying Passivhaus principles and standards.


Hannah Dixon Architecture



Hanse Haus Bespoke Limited


With more than 90 years experience in quality pre-manufactured SIP building construction and more than 33,000 houses built throughout Europe, including the first certified Passive Houses, HANSE HAUS offer a Start2Finish service


Harley Haddow



Hawkes Edwards and Cave


Founded in 1955 by Tony Cave-Browne-Cave the practice developed with his partners Ken Collins and Will Hawkes. Since then we have undertaken almost every sort of building project, but we specialise in one-off commissions, with a strong emphasis on traditional bespoke projects, creative and original design, with the occasional contemporary building to spice things up. Much of the practice's work is on listed buildings, with these specialist projects as far apart as Edinburgh and London. We value careful and conservative repair, and we also believe that the alteration and reuse of these buildings is best informed and inspired within a strong design environment. The Practice Principal is Trevor Edwards The design staff are lead by Associate Andrew Warner, assisted by senior staff Greg Bicknell and Martin Kennard.





Haydn Bennett Chartered Architect


A small practice with recent and extensive experience in Domestic construction with a background in Education and Commercial Projects. Now increasingly involved with New Houses including Passivhaus, Sustainable Design, Low Energy and "Eco" constructions. Recently completed certified Passivhaus and a pair of houses certified to the Passivhaus Institute Low Energy Building standard.


Haydon Finch Studio


I am a Chartered architectural technologist, a member of the Green Register, the AECB and a Certified Passive House Designer. I deliver residential and commercial projects in the UK. I believe in responsible design, and my passion for the built environment is driven by the challenge to provide spaces that make use of sustainable resources while enhancing the lives of their inhabitants. I like nothing more than to use - or creatively reuse - found objects in my projects. My aim is to deliver stunning architecture and design by providing clients with creative, sustainable solutions to realise their vision within their budget.


Heba Abdel-Halim Mahmoud

Cairo, Egypt

Heba is a PhD Researcher in Architectural Studies & Environmental Design at the Faculty of Engineering, Cairo University, and a Lecturer at Misr University for Science & Technology. She has studied and applied project management methodologies including Agile methodology and is a Certified Scrum Master and Trainer. Through her 15 years’ experience she has led and participated in designing & managing many projects of different types and sizes. Heba founded her Engineering Office “H.A.D Heba Architectural Designs” in 2005, as a cutting-edge office in both architectural environmental design and project management. H.A.D. has a unique working concept that stems from integrating the design team’s imagination with the latest Passivhaus techniques, along with an Agile project management mindset. That guarantees the success of H.A.D.’s project deliverables and maximizes their business value.

Highland Passive

Fort William

Highland Passive help self-builders, architects and design teams to meet the rigorous international Passivhaus standard on both new-build and retrofit projects, helping you to live in a cosy, healthy, cheap-to-run home. Highland Passive is run by Es Tresidder. Es is a certified Passivhaus and AECB Carbonlite Retrofit designer. Es has over ten years of experience in low-energy buildings in both consultancy and academic roles.


HLM Architects



HM Architecture


HM Architecture is a client focused chartered architectural practice based in Kendal, Cumbria on the edge of the Lake District. Partner and Chartered Architect, Mark Deverill, is a Certified Passive House Designer and Chartered Architectural Technologist. The logical fabric first approach of Passive House sits comfortably with our design approach and company ethos, where simplicity, practicality and aesthetics combine.

Humber Architecture



Husker Limited