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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MA+D Ltd


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.


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.

Mast Architects


MAST Architects are an award winning practice based in Glasgow delivering projects across a number of sectors but with a focus on residential, conservation and community projects. In addition to these, we are also involved in care, leisure, work and learning projects. MAST adopt an innovative and pragmatic approach to design, working closely with clients to achieve their aims and objectives, underpinned by our belief that people, place and community are placed at the heart of what we do. We believe that all projects are unique and we work to develop sustainable environments with a focus on creating a sense of place.


Matsumoto Passivhaus


Max Fordham LLP


Max Fordham LLP is an environmental building services engineering consultancy, who work as both services consultants and Passivhaus designers. For over 50 years, we have engineered air, light, sound and energy to bring buildings to life. Sustainability was a founding principle of Max Fordham and it remains one of our core values. Many of the solutions used in a Passivhaus building already form part of our general approach to environmental design. Our portfolio includes exemplars of sustainable design and a diverse mix of beautifully engineered buildings, including the Agar Grove development in London.


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.


Mead: Energy & Architectural Design Ltd


MEAD: Energy & Architectural Design Ltd was founded by Kym Mead in 2014 as an independent consultancy specialising in Passivhaus buildings, offering impartial advice and certification to industry professionals and aspiring self-builders.


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.


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.