Non-Developer Members

Non-Developer members have signed up to the GHA Charter.


The 15-40 collective of architecture practices share a commitment to radically reduce the energy consumption of buildings through a ‘fabric first’ approach. Anne Thorne Architects, Arboeal Architecture, CTT & Passivhaus Homes, Good Architecture, Prewett Bizley Architecture and Suetake Studio, who form 15-40, include 7 Certified Passivhaus Designers, and have extensive experience in delivering well designed sustainable new build and retrofit projects. By co-operating to share ideas, knowledge and resources 15:40 is able to offer clients a greater depth of expertise.

Aurora Estates Ltd

Aurora Estates Ltd , a vibrant new Chartered Construction Consultancy convening experienced, knowledgeable, highly skilled and motivated people to deliver a unique blend of services - with an outcomes based focus on custom build, urban extensions, garden villages and cities. Nigel Ingram, its founder, is a Fellow of the Chartered Institute of Building, has worked (and learnt) in the Built Environment for over 33 years in a wide variety of private & public roles specializing in preparing and delivering large scale complex residential & care led schemes. Nigel states: It is my belief that the places we live, work and play in have a profound influence on the lives we lead, our health and well-being and the legacy we leave for others.
Aereco Ltd
ALP Architects (Arbuthnott Ladenburg Partnership)

Award winning architects, specialising in housing for private clients and housing projects; new build and conversion; urban and rural. ALP has successfully secured an Ecohomes "Excellent" rating for a village development of nine houses, and seeks developer and private clients who aspire to zero carbon homes, or to build Code 4 and above based on the Code for Sustainable Homes.


Telephone : 01285 641146

Apex Acoustics Ltd

Apex Acoustics is the leading acoustic and air tightness consultancy based in the north of England. We operate nationally, consulting on design strategies and details, and undertaking testing for all types of buildings. We are UKAS accredited for acoustic and air tightness testing, and Board level members of both the ANC (Association of Noise Consultants) and ATTMA (Air Tightness Testing & Measurement Association) Contact: Jack Harvie-Clark, or 0191 423 6272

Baily Garner LLP

Founded in 1976, Baily Garner LLP now employs over 170 staff in London and Birmingham. One of the industry's leading multi-skilled consultancies, our primary roles include architecture, building surveying, sustainability and energy assessments, employer's agent services, quantity surveying, master planning, partnering management and project management services. Our sister organisation, Baily Garner Health and Safety Ltd can also offer CDM coordinator services, site inspections and health and safety training. Baily Garner also has a BSI approved ISO14001 Environmental Management System. Should you wish to contact us please call John Milner on 020 8294 1000 or email him at

Beattie Passive

Beattie Passive Build System is a patented construction method that can be designed to any specification or style using Passivhaus methodology to deliver a complete build system certified by the Passivhaus Institute in Germany; the only company in the UK to achieve this award. A simple and replicable build system that delivers the energy efficiency values of a Passivhaus. The construction forms foundation beams, ground floor, walls and roof all built to form a continuous void. Once in place, flame retardant insulation material is injected into the floor, wall and ceiling cavities, creating one continuous seal. No joints, no leaks. We work from grand designs, housing developments, social, schools and commercial buildings. All can be delivered quickly and at a cost similar to traditional methods but offering huge energy and heat savings, delivering dramatically reduced cost of ownership.


BioRegional Development Group
ca sustainable architecture (UBT)

CA Sustainable Architecture divides its time between Architecture, Energy and Code for Sustainable Homes assessments and Research. We have experience in post occupancy evaluation and firmly believe that actual figures of energy use and comfort assessment are what matter. As assessors we have helped designers and developers attaining CfSH levels 3, 4 and 5.


Telephone : 01635 41688

Centre of Refurbishment Excellence (CoRE)

CoRE is the not for profit, national centre of excellence for green building retrofit. Its mission is to transfer practical retrofit knowledge to support excellence in retrofit products and projects across the domestic and non-domestic sectors. CoRE’s network of Fellows is the UK’s largest bank of retrofit expertise, drawing together leading practitioners from construction, design and academia. They not only shape the CoRE agenda, but also share their knowledge with the growing number of active retrofitters through events, bespoke training and information sharing. Based in Stoke-on-Trent, CoRE is itself an example of refurbishment excellence, an international standard conference and training venue.


Chalk Hill Construction


Telephone : 01483 300230


Checkmate is the first and only Carbon Neutral new home warranty provider in the UK. Our innovative approach to latent defects insurance, which combines traditional on-site inspection methods with the latest online technology, helps us deliver products and service standards well above the norm whilst benefiting the environment and being a carbon neutral link in the construction supply chain.


Coda Studios Ltd
The Concrete Centre/ Mineral Products Association

The Concrete Centre provides the latest technical guidance, project exemplars and design innovations relating to concrete and masonry solutions. Our aim is to enable house-builders and designers to provide cost-effective, robust, energy efficient, adaptable, high performance housing. The Concrete Centre is part of the Mineral Products Association (MPA). For more information visit


Telephone : +44 (0)207 963 8000

Cullinan Studio

Cullinan Studio began designing Good Homes in 1964, when Ted Cullinan built himself a passive solar house in Camden Town (recently listed Grade 2*). Their recent major housing includes a series of mixed use inner city regeneration schemes in Penarth, Bristol Harbourside and Stonebridge in west London. The Bristol and Stonebridge developments both achieved Building for Life Gold standards. Currently, they continue to build residential developments in Bristol and at Stonebridge, and other schemes in London including 12 residential apartments on the site of their previous office.

Cygnus Homes

CYGNUS homes makes a range of Low Energy Houses offering optimum energy performance with no cost premium. With a range of 2, 3 and 4 bedroom house types, configurable in semi-detached, link-detached and terraced formats we meet the challenging new space standards for accessibility (Category 2) with consistent quality in construction and execution, economically delivered through our off-site manufacturing processes. Through our Patent Pending innovations we rationalise whole house services, their management and installation delivering Economical solutions which are both Environmental and E-Controllable. The CYGNUS E-Smart Houses provide our customers with a range of high quality designs with choices available in configuration and appearance. They cost little to run and maintain, and are adaptable to lifestyle needs. Delivery and commissioning can be as fast as eight weeks from order onto a serviced plot facilitating potential site development savings when compared with traditional procurement routes.


David Howard Property Services Ltd
Ecological Building Systems UK Ltd

Ecological Building Systems has been at the forefront of supplying Intelligent airtight and windtight building product solutions and natural insulations for over a decade, gaining sole agency in Ireland and the UK for Pro clima; Gutex and Calsitherm. Our technical expertise and leading range of ecological products, provides the highest specifications for diffusion open, healthy, low energy sustainable buildings.

Ecology Building Society

Ecology Building Society provides ethical savings accounts and green mortgages for properties that benefit the environment. The prime focus of the Society is to promote an ecological approach to the built environment in the UK, and thereby foster sustainable communities. We seek to minimise energy use and waste in both our office and business practices. Our mortgage product range includes: C-Change Discounts for residential borrowers, which offer a 1% discount off our Standard Variable Rate for Passivhaus certified homes for the lifetime of the mortgage. Small Scale Development Loans and Commercial Mortgages for developers of Passivhaus standard properties.

Telephone : 01535 650 770

Eltek Limited


Encraft is an independent consulting engineering firm with three practice areas - Distributed Energy Projects, Building Physics and Web Applications. The firm is built on the expertise and skills of its people, and Encraft offers impartial services based on decades of accumulated specialist technical expertise and experience of developing projects. Our Distributed Energy Projects practice works with commercial and non-commercial clients to develop large scale microgeneration and energy efficiency projects for the UK building stock. Our experienced team of physicists, engineers and architects apply their understanding of Building Physics to provide a range of services which deliver user-friendly and sustainable, low carbon buildings. We focus on reducing energy demand and enhancing thermal protection, ensuring buildings are comfortable to live and work in, easy to maintain and have predictable performance in use. Encrafts in-house Web Applications team produces specialist applications designed for end users to identify most profitable investment opportunities, and develop cost efficient energy efficiency and microgeneration projects.

Telephone : 01926 312159


Energy Saving Trust

Environmental Economics Ltd

Energy and sustainability consultancy with particular expertise regarding large residential developments. Extremely cost-effective service.


Environomic is an independent home energy consultancy. We offer energy proficiency surveys, SAP assessments on new build, whole house energy strategies for existing properties. Also solar PV surveys for Stroma network.

Eric Parks


Telephone : 01759 360909

Eurban Ltd

Eurbans unique position as a leading specialist timber contractor, as well as engineer, means that during the collaborative process of design development, structural design decisions are made with full consideration for buildabilty, cost and programme. Involvement from a specialist timber engineer ensures construction phase risks are identified and mitigated early in the design stage. Our team of specialist timber engineers provide structural engineering services to deliver innovative timber structures using a wide range of engineered timber components and systems. We design structures to EuroCode 5 and utilize the latest 3D modeling and engineering software as well as the latest CAD/CAM planning and production software. We offer the complete structural design and engineering service required to design, fabricate and install engineered timber building structures.


Feilden Clegg Bradley Architects LLP

Feilden Clegg Bradley Studios are an award-winning practice with an international reputation for design quality, for pioneering environmental expertise and a radical architectural approach.

Four Walls

Four Walls are a specialist company offering building performance advisory and evaluation services to building owners and the construction industry. The company undertakes building fabric and services inspections, both during- and post-construction to advise how a building can be optimised in terms of its energy and resource use and occupant satisfaction.


Telephone : 08456 804802

Helionix Designs and The Bay Trust

An award winning professional Facilities/Security Manager and Sustainable Operations Director. Strong technical and business credentials with an impressive track record of more than twenty years hands-on experience in building and project management. Accomplished/ experienced in strategic planning, project management, and business unit development strategies. Proven ability to successfully analyse the critical business requirements of an organisation, identify deficiencies and potential opportunities, and develop innovative and cost-effective solutions for enhancing corporate social responsibility, competitiveness, increasing revenues, and improving customer service offerings. Marc is currently the Founder and Managing Director of Carey Ambrose; a Consultancy Practice specialising in Sustainable Business Development. Carey Ambrose is one of the founding companies of Ecotomy LLP. In addition, Marc is an Executive Director working for the team at Helionix Designs - an independent research team primarily responsible for designing and building the award winning Pines Calyx. Marc has spent much of his working life in the Public Sector. He has focused predominantly on the education sector for local authorities within London Boroughs, Surrey and West Sussex County Council. He has also spent a significant period of time working directly for commercial clients such as South Bank Arts Centre, International Music Corporation, High Street Supermarket, high end retail establishments, large multi-national brands, National Care Home organisation, independent country estates, and domestic/commercial property owners. Marc has been awarded a Natural Pioneer Award and a Fellowship to Millennium Commission for his work in the voluntary sector; primarily based on his work to progress environmental community projects.
Hoare LEA

Hoare Lea is a highly successful, award-winning firm of consulting engineers, specialising in mechanical, electrical and public health (MEP) engineering, and is the largest of its kind in the UK. Founded in 1862, Hoare Lea remains an independent partnership, with 11 offices throughout the UK and a growing international presence. Hoare Lea works on some of the highest profile projects in the industry and with leading architects, designers and contractors. Currently working on projects across all main market sectors, ranging from small studies and reports to projects valued at more than £4 billion.

Homes and Communities Agency (HCA)

Homes and Communities Agency (HCA) is the national housing and regeneration delivery agency for England, with an annual investment budget of more than £5bn. The HCA was formed on 1 December 2008, is a non-departmental public body and our sponsor government department is Communities and Local Government (CLG). Our role is to create thriving communities and affordable homes. We work nationally but support the ambitions of our local partners to provide better places that offer great homes and good jobs.


Telephone : 01925 644839


Institute of Energy & Sustainable Development

John Thompson and Partners

John Thompson & Partners is an international placemaking practice, with extensive experience of delivering successful projects for both public and private sectors throughout the UK, Europe, China, Russia and the Middle East. We use participatory techniques pioneered and honed over two decades to build collaborative visions for our projects with the very people who will go on to use them. From our studios in London, Edinburgh and Shanghai we undertake placemaking projects at every scale, from cities and towns, to neighbourhoods, streets, and the design of individual buildings.

Jon Broome Architects

Designing sustainable homes Developing sustainable policies and briefs Advising on sustainable construction, specifications and suppliers Bringing together theory and practice to create environmentally sustainable and affordable housing. Building on 20 years of experience of ‘green’ building to incorporate the most cost effective and trouble free measures into the mainstream.

Kiwa UK

With many years of experience in the solid fuel, gas and oil industry, GASTEC at CRE Ltd provides energy consultancy, product testing and training to the public and private sector throughout the UK and abroad. Established in the 1930s, the business is located in Gloucestershire. With state of the art testing facilities and a range of very experienced and highly qualified staff, GASTEC at CRE Ltd (GaC) is able to offer a product testing, training and assessment and energy consultancy to a range of clients, from multinationals and businesses to schools and theatres. GaC provides professional and friendly service, with proper scientific advice given in plain English. Biomass, solar thermal or solid fuel, CE marking or gas training... If energy is involved, then GaC can help.

Tarmac Services Ltd

Lafarge Tarmac is the leading sustainable building materials group in the UK. Innovative products, solutions and services are designed to contribute to the development of infrastructure across the UK and to enable a more sustainable built environment for the long term future of the country. A nationwide network of sites provides our customers with aggregates & asphalt, cement & lime, readymix concrete, road contracting, building products and recycling services. A unique combination of people, technology and assets enables us to offer customers unrivalled choice and flexibility, ensuring optimal sustainable performance of their projects whilst maximising value and whole-life cost. Lafarge Tarmac has contributed to some of the biggest construction projects in the UK, including Wembley Stadium, Heathrow Terminal 5, The Shard and London 2012.


The Mackintosh Environmental Architecture Research Unit (MEARU) has been in operation for over 20 years and has an established track record of high quality research in environmental architecture. MEARU has a long history of working with user groups in relation to housing, but its remit now includes all aspects of construction, low energy design, sustainability and and building performance evaluation. The unit has undertaken over £3m funded research in the past 6 years, including funding grants from research councils (EPSRC £522k, AHRC £52k), Industry bodies (TSB, £470k, KTP £450k, EU/ERDF £140k, and HA’s and local councils £150k).

Mole Architects


Established in 1936 as a non-profit distributing company, NHBC's role is to raise standards in the new house-building industry and provide consumer protection for new home buyers. NHBC's 10-year Buildmark warranty covers around 80% of new homes in the UK each year. NHBC is the UK's leading warranty and insurance provider for new homes, providing many additional services for housebuilding and non-residential construction, including Sustainability consultancy, assessments and energy ratings, engineering advice for contaminated land, and a comprehensive training programme. The NHBC Foundation is NHBC's independent research institution, focused on research and development, technology and knowledge sharing, and the capture of industry best practice within the new homes industry.

Email: /

Telephone : 0844 633 1000

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One Brighton Management Company

One Brighton (New England Quarter) Management Company manages the One Brighton estate of 172 flats and 20,000 sq ft of commercial and community space. The company undertakes full maintenance and management of the estate as well as providing the services of a full time green facilities manager.

One Brighton (New England Quarter) Management Ltd
Oxford Brookes University

PF&D Ltd

PF&D Ltd are one of the most respected brokers of finance for the Property Developer in the UK and, with over fifty active lenders to call on, we have developed an enviable reputation for delivering results where others fail. We regularly source funding for Multi Unit Schemes and Single Plot developments, even including unique one off projects that have appeared on TV programs such as Grand Designs, to name but one. We know what constitutes a bankable deal with funding lines up to 90% of costs and beyond and usually secure in principle terms from our lending contacts within 24 hours.

Phase Energy Ltd.

We are a consultancy specialising in phase change materials. We assist clients with the development of PCMs, methods of entrapment, use in construction materials, advice on testing etc.

Website: http://
Photon Energy Ltd

Prince's Foundation

The Prince’s Foundation is an educational charity which exists to improve the quality of people’s lives by teaching and practising timeless and ecological ways of planning, designing and building. The Foundation believes that green construction needs to be a combination of robust thermal efficiency in individual buildings, with broader agenda promoting mixed-use neighbourhoods, reducing households’ dependency on car travel.

Telephone : 020 7613 8500

Pollard Thomas Edwards LLP

Pollard Thomas Edwards architects (PTEa) offers a unique combination of commercial acumen, design talent and social commitment. Our rigorous, questioning approach produces design solutions that are intelligent, imaginative and which add value and joy. We work closely and collaboratively with our clients, forging long term relationships. We place great importance not only on the way that buildings look, but also on the way that they are made, the way they are used and their graceful ageing. We combine high quality design with explicit social purpose, marrying an understanding of whole community needs with an acute commercial instinct. Our building performance appraisal is integral to our approach to sustainability and utilises valuable feedback from clients and end-users. Our Head of Sustainable Design helps our project teams to give our clients practical advice on creating sustainable developments in a cost effective way.



Q-Bot combines robotics with one of the most pressing needs; upgrading our existing buildings to make them more comfortable, reduce cold draughts and improve energy efficiency. In doing so Q-Bot turns difficult, dirty and disruptive jobs into cost effective and efficient processes, to create a real, scalable and cost effective solution to meeting targets for CO2 reduction and affordable warmth.

Radclyffe Associates Ltd

Fuelled by a desire to emulate the efficiency of the termite mounds in the Northern Territory of Australia, Simon uses natural materials and construction methods to create contemporary family homes, concentrating on the wellbeing of the inhabitants.


Telephone : 01494 434163

Rationel Windows (UK) Ltd

Good, solid quality workmanship has characterised Rationel’s windows and doors since the first products were shipped from our factory in Sdr. Felding in 1954. On that basis, Rationel has created a sound foundation, and is today an international company with sales activities in Denmark, Great Britain and Ireland. Rationel manufactures energy saving and contributing windows and doors of premium quality in terms of comfort and security. We develop our windows and doors continuously, ensuring that they will always meet current statutory requirements as well as market requirements for design and functionality. Rationel is part of the DOVISTA Group which consists of nine leading door and window companies in Europe. DOVISTA A/S is owned by VKR Holding and employs approx. 15,000 people in more than 40 countries.

Renson Fabrications Ltd

RENSON® is a ventilation and solar shading specialist. RENSON® products have been designed to improve the indoor air quality and comfort for those in residential and commercial buildings as well as reduce the energy costs. RENSON® has a range of louvres, trickle ventilators, brise soleil and external blind solutions.

Rickaby Thompson Associates Ltd
Robust Details Ltd

Robust Details Limited is a UKAS accredited product certification body operating the robustdetails® certification scheme which helps new homes developers to demonstrate Part E compliance without pre-completion testing. Since 2004 it has registered 750,000 new homes and through monitoring and testing demonstrated over 98% compliance since starting and 99.4% over the last year. There are sixty different party walls and floors in all materials with standardised processes, comprehensive testing, monitoring and knowledge transfer including free training animations and on-line handbook. The company continues to develop new Robust Details and is looking to bring the pattern book philosophy to other areas to improve quality, reduce risks and improve compliance.

SC2 Sustainability Consultancy

Steve Charter of SC2 has worked with the GHA to develop and deliver its training on Closing the Performance Gap, and on proposals for further training on Sustainable Building Skills Plans, VIAQ, Overheating and Climate Change Adaptation and other issues. Steve was co-author of the first Level 3 Cert/Diploma on Sustainable Construction and has particular expertise on training and skills issues, as well as wider sustainable building issues. Steve also works part-time for Helionix Designs and the Bay Trust (other GHA members) where he is involved in work to develop new ultra-low impact building systems.


Telephone : 07990 778581


Saint-Gobain is a world leader in the design, manufacture and distribution of construction products for the creation of a more sustainable built environment. Its global strategy is focused around meeting some of the fundamental challenges faced by the world today: reducing energy consumption, limiting our impact on the environment, and creating a new generation of buildings which are safe, comfortable and energy efficient. In the UK and Ireland, some of the best known and respected companies in the construction sector are part of the Saint-Gobain Group.

Six Cylinder Limited

Six Cylinder is a specialist consultancy offering post-occupancy and building performance evaluation services, technical risk management, retrofit coordination and Soft Landings support, based in Southwest London. We provide robust feedback on the in-use performance of buildings. This includes analysis of the performance of the building fabric, in-use energy and water consumption, indoor air quality, thermal comfort and relative humidity, and post-occupancy feedback from residents and building users. We support designers, developers, construction management teams in holistically addressing their projects to ensure that buildings work efficiently and effectively. We feedback on what works and what doesn’t, and what needs improving in the design, construction, handover and operation of buildings.



SLR Consulting Ltd

Studio Partington

We are committed to minimising the environmental impact of our buildings. We advocate a commonsense approach based on passive design; an efficient building envelope and closing the gap between predicted and actual energy consumption.


sustainablebydesign LLP is an Architecture and Design practice which delivers sustainable built environments. We have experience in housing, workplace and education newbuild and refurbishment projects to very low energy and PassivHaus standards.

The Timber Frame Company Ltd


Tisdall Associates

Town and Country Planning Association
University College London (UCL)


Telephone : 020 7679 5981


University of Hertfordshire
University of Sheffield

Fionn Stevenson holds a Chair in Sustainable Design and is Head of The University of Sheffield School of Architecture. She is also Co-Director of the Royal Academy of Engineering Centre of Excellence for Sustainable Design at Sheffield. Pedagogically, she is dedicated to producing the next generation of architects capable of tackling climate change and promoting carbon positive regeneration of built environments within a broader understanding of sustainability. Her research and consultancy work focuses on creating innovative methods of building performance evaluation in relation to occupancy feedback and social learning in order to improve building design. She is particularly interested in the control interfaces between buildings and people from a holistic perspective which includes resource use in its widest dimension. She currently advises Innovate UK, Good Homes Alliance, Zero Carbon Hub among other government bodies and NGOs. She is also an active member of SCHOSA Council as well as the RIBA.

University of Westminster

URBED (Urban & Economic Development Group)

Waugh Thistleton Architects


Willmott Dixon Energy Services Ltd
Woods Hardwick Limited

Woods Hardwick are a multi-disciplinary company comprising Architects, Civil Engineers and Town Planners providing service to the industry across a wide spectrum of development. As well as being affiliated to the Good Homes Alliance we are members of the UK Green Building Council. Our award winning dedicated residential department includes a BREEAM Sustainable Communities qualified Assessor, an accredited Code for Sustainable Homes Assessor and staff trained in CfSH matters. We aspire to designing zero carbon and zero impact homes and welcome the opportunity to work with like minded professionals.


Telephone : 01234 268862

XCO2 Energy Ltd

XCO2 Energy specialises in low-carbon and passive strategies for the built environment and beyond. We are a multidisciplinary group with backgrounds in engineering, architecture and environmental science, working as consultants for single homes, multi-residential sites and masterplans, as well as carbon management and energy audits for companies and businesses. We advise clients during all stages of the construction process. Early stage energy and sustainability strategies for planning, M&E design throughout and Post Occupancy Evaluation in operation. We pride ourselves in using a technical approach that measures and quantifies the benefits of our proposals, and communicating our strategies to project teams in a clear and accessible manner.


Upcoming events RSS feed

  1. DEC 01

    GHA EVENT - The Jonathan Kingerlee Good Homes Awards & Christmas party

    Saint-Gobain Innovation Centre, 95 Great Portland Street, London

  2. DEC 03

    eco & fm showcase

    The Highbury Suite, EMIRATES STADIUM, Hornsey Road, London N7 7AJ

  3. JAN 12

    GHA EVENT - Site Visit to Dalston Lane. World's largest CLT residential structure

    67-71 Dalston Lane, London, E8

  4. JAN 14

    GHA EVENT - Leaders' Club Dinner

    The Jam Factory, Oxford

  5. JAN 20

    Healthy Buildings: The role of products

    UCL, London

  6. JAN 27

    GHA EVENT - Closing the Performance Gap Masterclass

    University of Brighton, Sussex

Members Area RSS feed

  1. 28-10-15

    New sustainable neighbourhood gets go ahead in South London

    RUSS, an innovative community self-build group that aims to provide homes for those priced out of the housing market, has j... Read more >

Latest news RSS feed

  1. 26-10-15

    CPD Event – Why are new homes failing to achieve basic levels of indoor air quality?

    Progress towards achieving the government’s 2016 zero carbon homes target has primarily been led through incremental ... Read more >