Passivhaus Affiliate

Standard Members

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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M Sustainability



MA+D Ltd


Established architecture practice working predominantly in the south east, focusing on reducing the profits of utility companies by lowering the running costs of homes and offices through good design practices and straightforward detailing.


Mac Eye Projects


We are a family run business based in the UK. Our aim is to provide our Clients with a bespoke service offering the same Swiss precision and excellence that we would expect for our own self-build or extension. We believe that our Clients are unique and therefore, so are our materials, service and delivery. Our services include bespoke Design, Construction, Joinery and Project Management. Our speciality is Timber structures and we are Passivhaus Tradesperson certified.


Made In Place Design Ltd



Magmatech Ltd


MagmaTech develops thermally insulating fixings designed to remove thermal bridging from insulated buildings. This includes low conductivity basalt fibre wall ties for use in masonry cavity walls; “TeploTie TM”. The ties were used in the breakthrough Denby Dale Passsivhaus project and many other low energy projects across the UK. Fixings have also been used in Passivhaus retrofit / refurb projects. Thermally broken connections between most construction materials are possible. MagmaTech welcomes the opportunity to solve your thermal bridging problems.




Specialising in unique and premium residential projects for private clients, MAKE are skilled in translating the architect’s building design and vision into a property that looks, feels and performs like a home that our clients would aspire to live in. Construction and sustainability may sound like an oxymoron, and there are times that it is. But there are instances when the two are integrated, they compliment each other to create something extraordinary. It’s well known that a Passive House can only be delivered through careful design and crucially, by thoughtful and careful construction by a properly skilled and motivated construction team. For us it is the norm.


Mantis Energy Ltd


At Mantis Energy we believe that new and existing homes can be built better. We do this by designing properties into energy efficient, low running cost future homes. Mantis Energy specialise in low carbon buildings, renewable power generation and renewable heating & hot water systems. We provide a variety of design, project management and compliance services to see projects through from early concept to final installation and commissioning.


Mark Baker

Mark Lomas


Mark Lomas MSc BSc(Hons) MCIAT is a Chartered Architectural Technologist with 25 years of experience in sustainable construction, as both builder and designer. Of his hand-built timber house, the Times commented, “...ahead of [its] time.” He has worked with leading Passivhaus architects, applying PH fabric-first principles to projects in timber, steel, concrete-frame and wide-cavity masonry. Inspired by biological processes performing engineering functions, he pioneered the use of reedbed systems in Ireland, and has trained with leading exponents of green roofs and ecosystem services. His designs have been exhibited at the Science Museum and Burning Man Festival, and he has won awards from CIAT and CIOB.

Mark Wainwright


Martin Mulligan Architect

Greater Manchester

Matsumoto Passivhaus



Newcastle upon Tyne

Max Fordham LLP

London, Cambridge, Edinburgh, Bristol and Manchester

Max Fordham is an environmental building services engineering consultancy. For over 50 years, they have engineered energy, air, light and sound to bring buildings to life. From their five UK offices they have worked with the world’s leading architects on some of the world’s greatest buildings. Max Fordham’s Passivhaus portfolio includes award-winning exemplars of sustainable design and a diverse mix of beautifully engineered buildings. Having worked on some of the largest and tallest Passivhaus projects in the UK, they are comfortable delivering at any scale. They have a team of certified Passivhaus Consultants and Designers and are experienced in providing the design/planning service.


MB Standen Ltd


Founded in 2014 providing independent consultancy and design advice specialising in Passivhaus buildings. Extensive experience in using PHPP and assisting with the certification of all types of buildings including offices, schools and houses. Happy to talk through any projects whether you are an architect, developer or self-builder.

MBC Timber Frame UK Ltd


MBC specialise in the production of Passive Homes throughout the UK for people looking to benefit from huge energy savings and reduce their heating demands by 90%. Our super insulated, precision engineered homes are at the forefront of innovation and design and are now available at an affordable cost. Once considered the construction technique of the future, our Passive House System is fast becoming the building method of choice by those wishing to live in beautiful, environmentally responsible, intelligent homes that generate significant cost savings.


McLaughlin & Harvey


McLaughlin & Harvey is a building, civil engineering, fit-out and facilities management contractor undertaking high quality work throughout the United Kingdom and Ireland for over 165 years. We operate in various sectors including healthcare, education, industrial, retail, sporting venues, transport infrastructure, environmental improvements, marine, commercial, residential and leisure. We have a strong commitment to delivering quality cost-effective solutions for clients within a safe, considerate working environment. We implement a strong CSR strategy, facilitating a sustainable business which supports the health, safety, welfare, and well-being of our workforce. This also manages our impact on the environment, local community, supply chain, customers, people, and industry. We believe in putting people first, intelligent use of natural resources and tackling climate change. We ensure high standards and ethical values are consistently applied and our staff are empowered to make positive CSR decisions at all levels.


McLean Quinlan


McLean Quinlan are housemakers, creating distinct, beautifully crafted architecture, in the town, the countryside, in the UK and overseas. They love what they do; delighting in the detail, the use of light and materials, and the making of spaces that age with grace. They are driven by working together and with you. They listen, earn trust, foster friendships. They themselves are a family, and are mindful that creating a home is a journey, a life experience. The studio are careful to understand the way you live and what you enjoy. This is the key to designing a home that is truly yours.


McTaggart Construction Limited


Established and trading since 1946 McTaggart Construction Ltd is a family of businesses delivering high quality homes across central Scotland. With offices in Dalry and Glasgow, the group employs over 300 people across its six subsidiary businesses. Our company has experience of providing developments in the residential, care and commercial sectors but our principal business activity is the provision of affordable housing developments for RSLs and Local Authorities. Our projects range from small scale developments up to large projects of over 500 units with project values ranging up to £80m.


Mead: Energy & Architectural Design Ltd


MEAD was founded by Kym Mead in 2014 as an independent consultancy specialising in ‘low-energy’ buildings, offering impartial advice to industry professionals and aspiring self-builders. Our aim is to reduce the energy demand of domestic and non-domestic buildings, whilst also providing excellent indoor air quality and comfort levels. Our approach is to cost effectively improve the building fabric and services whilst using the local environment to enhance the comfort levels throughout the year.


Method Consulting LLP


Method Consulting is a specialist engineering and sustainability consultancy focusing on building services and sustainability in the built environment – our common goal is to reduce the environmental impact of buildings through better design, analysis and assessment. Our approach to building design is open and collaborative – we analyse problems, evaluate options and provide our clients with unbiased and incisive advice to allow them to make informed decisions and get the best possible outcomes. Intelligent thinking means considering the fine details as well as the broad concepts and our collaborative approach means we work closely with clients, architects and designers to solve problems. We are flexible but focused and we believe that our working environment should be open, transparent and conducive to development for talented professionals. Since our establishment in 2011, we have grown organically, opened new offices and expanded our expertise to cover a whole range of specialist services with engineering and sustainability at the core. Common to all our team is a detailed understanding of the fundamentals of building engineering, energy and sustainability, as well as experience and a pragmatic approach to ensure we provide the best possible service for our clients.


Metropolitan Workshop


Metropolitan Workshop are a team of 50 architects and urban designers based across 3 studios in London and Dublin, with extensive housing-led masterplanning experience in both the UK, Ireland and mainland Europe over the last 25 years. We have established a reputation for creating high quality, award-winning masterplans and housing based on a rigorous and sensitive design methodology. We have a talent for collaborative working, having established a strong track record in successful community consultation. Recent awards include BD’s Architect of the Year Award for Masterplanning and Public Realm (2017), a Housing Design Award (2018), and RIBA Regional and National Awards (2019).


mh Architects


MH Architects was formed as Miller Hughes Associates in 1986, rebranding as mh Architects in 2008. We are based in Chichester and work across the south of England. We strive to make architecture that can inspire both inside and out, marrying attractive appearance with straightforward functionality to give our clients buildings that will be enjoyed for years to come. We believe that good design is about achieving the objectives of our clients in the most elegant way possible, using the optimum resources available, in the most economical way. In our view sustainability should be truly integrated in all buildings from conception and the challenge for us is to fuse this with design that genuinely responds to its context and occupants.


Michela Ravaglia


Michela is an Associate Architect with Stride Treglown and the residential lead for London, specialising in working on complex and large-scale, mixed-use projects. Michela is passionate about residential architecture; with more than seventeen years working in the construction industry she has attained a wealth of experience delivering residential-led, mixed-use schemes throughout London. During this time Michela spent two years working as a Senior Design and Technical Manager for a developer equipping her with a valuable insight into value management, procurement and tendering processes as well as attributing to her keen negotiating skills dealing with a broad array of stakeholders across the built environment industry.

Mike Whitfield Construction Ltd


Mike Whitfield Construction Ltd is based in South Herefordshire. Mike first worked on a carefully designed energy efficient building in 1996, and since then has been on a steadily improving journey. In 2005 we were main contractors on the conversion of 2 barns into offices for the sustainable architects Architype, a project which won the 2007 RIBA Sustainability Award. By the time PH became known in the UK, we were already using many of the principles, and in 2010 when we started our first project that had been designed using PHPP, it was a natural progression for us. Since then we have worked almost exclusively on retrofits, extensions and new builds to PH principles. Mike has spoken on construction methods and detailing at AECB and UK Passivhaus conferences.


Mikhail Riches Ltd



Milligan Knight Architects

St Albans

Milligan Knight Architects are an RIBA chartered architectural practice who are passionate about architecture and design. We work on a wide range of projects for a variety of clients, from home extensions through to commercial new builds, and we offer Passivhaus consultancy to clients seeking low energy building solutions. Our projects demonstrate our belief in high quality contemporary architecture that is contextual and timeless. We have over 10 years of experience in delivering the full spectrum of architectural services, and have established ourselves in Hertfordshire as a reliable and diligent architectural practice with outstanding local knowledge, that produces excellent documentation at all stages of a project. Based in Central St Albans in a beautiful listed building, we are perfectly placed to cover the whole of Hertfordshire, North London and surrounding home counties. Our historic offices also underpin our interest in cultural buildings and architectural design.


Miltiadou Cook Mitzman Architects


MJL Consultancy


MJL Consultancy is a forward thinking heating and ventilation design consultancy providing expert independent advice and design services to manufacturers, new build developers, installers and consultants. MJL specialises in System 3, Mechanical Ventilation and System 4, Whole House Mechanical Ventilation with Heat Recovery (MVHR), including Passivhaus, Overheating Projects, Shower Heat Recovery, Gas Savers, Hot Water ASHP and Traditional Systems including Gas/Electric Boilers for Domestic New Build Developments. Most recently we have been involved in Passivhaus MVHR design in projects in Scotland and Wales, where we liaised with the Passivhaus consultants to ensure both the Passivhaus requirements and building regulations were met.


Morrison Construction Scotland


Morrison Construction are one of the leading contractors in Scotland, with an award-winning portfolio covering a range of activities and sectors, where we have a strong and proud track record in delivery. Morrison create exemplary schemes through partnership working, building long-term relationships with our clients and supply chain. Whatever the size or scale, we pride ourselves on delivering high-quality results for our clients every time. At the forefront of the construction industry, we deploy the latest innovative technologies, techniques and approaches, and have designed and built some of Scotland’s most pioneering, efficient and sustainable facilities.


Morton Wykes Kramer Ltd