Passivhaus Affiliate

Patron Members

Accredited Passivhaus Design

Buckhurst Hill, Essex

Thinking of a new Passivhaus or EnerPHit retrofit? Accredited Passivhaus Design are enthusiastic about creating attractive buildings that are space efficient, comfortable to be in, contribute to their surroundings and use little energy. We use the Passivhaus method as it is proven in design and on site. Our Certified Passivhaus Designer has over 25 years' experience of creating housing for individuals, social landlords and care providers, from masterplanning to detail design. We can work with other architects and can provide construction stage energy calculations and working drawings for contractors. We can take you through the design, planning and construction stages of creating something seemingly impossible - Really comfortable, attractive buildings that cost very little to run. Our website can tell you more. Accredited Passivhaus Design is a trading division of the Tooley & Foster Partnership.



Hereford and London

Architype is an architectural design practice with a passion for creating uplifting, genuinely sustainable architecture using environmentally conscious materials to deliver healthy buildings for people to work, live and enjoy. Sustainability is at the heart of Architypes culture, inspiring and informing everything they do. Operating from two busy offices in Hereford and London, their work is primarily in the social sector, encompassing education, community, culture, housing and health.


Baumit Ltd


Baumit is one of the leading European brands for sustainable plaster, render and external wall insulation for the construction industry. Founded in Austria in 1988, Baumit now has a presence in over 30 countries worldwide. Baumit UK offer an extensive range of innovative, tested products, including BBA approved EWI systems, façade renders, paints and healthy living indoor plasters. Product research, development and innovation, combined with excellent customer service are an important part of the Baumit values, and we work in close cooperation with our partners to ensure every project is a success.


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.



Leamington Spa

If you’re passionate about cutting carbon or reducing your energy bills, it’s reassuring to have Encraft’s expertise on your side. Our respected consultants are leaders in their fields and have been involved in some of the most innovative projects of recent years. We specialise in building physics (including Passivhaus), distributed energy projects and related web applications, for a client base ranging from individual householders to large organisations in both the public and private sectors. Whether you need advice about the technical aspects of your project or wish to equip employees with new skills, Encraft is the industry leader.


Hastoe Housing Association

Kingston Upon Thames

Hastoe is an independent registered housing association managing over 4000 rented, shared ownership and leasehold homes across the South, East and West of England. Our roots are in innovation. This has led to specialisms in rural communities and in climate protection. Our development of the Passivhaus scheme at Wimbish is a perfect example of what we aim to achieve - sustainable homes and communities which provide affordable homes for local people. Our subsidiary, Sustainable Homes Ltd ( the UK's leading sustainability and consultancy provider for the sector and beyond. They provide exemplary training on the Passivhaus standard.




Kingspan Insulation is a market leading manufacturer of optimum, premium and high performance rigid insulation products and insulated systems for building fabric and building services applications. Kingspan Insulation is one of the founding members of the Passivhaus Trust and is at the forefront of the low energy building drive, helping architects and developers get the most energy efficient building envelope performance whilst taking up minimal space. Its products are among the most thermally efficient and technically advanced insulation materials available and have many advantages over traditional insulation materials.

Munster Joinery UK


Munster Joinery is amongst the largest manufacturers of energy efficient windows and doors in Europe. Founded in 1973, the company has grown year on year with the continuous development of new products, materials and processes. The company has a 940,000sq ft. production facility in Ireland and another 230,000sq Warwickshire in the UK. In recent years Munster Joinery has focused on developing energy efficient products through green and sustainable processes and operations. All of the products are designed for optimal thermal performance with U-values as low as 0.47 W/m²K. Several window systems, all of which are designed, developed and manufactured in house are now Passive House certified. Property owners are assured of an energy efficient product from an environmentally aware source together with an efficient service when they purchase Munster Joinery products.


PDP London

PDP London is a 120 strong London and Hong Kong based international practice, known primarily for our skilful integration of contemporary architecture within historic environments. We work across a variety of sectors, primarily existing and new residential but also extra-care, commercial, civic and mixed used developments. Our projects are developed with sound environmental principles and sustainability in mind from the very start. We focus on a Fabric First approach to building design, maximising the performance of the components and materials that form the building fabric, before considering the use of active services. This approach can reduce capital and operational costs, improving the energy efficiency and reducing carbon emissions.


Profine UK Ltd


KÖMMERLING are one of the foremost world pioneers in PVCu window and door systems, with a history of award winning innovation in Passivhaus solutions. With the latest System 76 platform, there are a number of product variants that meet the requirements of Passivhaus, including an innovative external aluminium clip on section in the form of AluClip Pro and additionally AluClip zero options which also offer impressive levels of sound reduction. KÖMMERLING have also founded the development of a unique surface colouring technology, proCoverTec that offers both water and dirt repellent properties.


Saint-Gobain Delegation UK & Ireland


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.


Warm: Low Energy Building Practice


WARM: based on theory and practice. Everything we do comes down to building physics – if it can’t be proven we won’t do it. From an airtight green-oak office to a refurbishment of a conservation property, we have continually tested our ideas on our own properties. Warm was formally set up in January 2009 by father and daughter Peter Warm & Sally Godber. Their aim – to designing buildings that demonstrated real energy savings. The Passivhaus standard hit a chord with this ambition and quickly became the mainstay of their work. Warm now specialise in Teaching, Designing, Certifying & Testing to the Passivhaus standard. Peter is endorsed by the Passivhaus Institut in Darmstadt as a certifier, so they can offer a complete package.


Willmott Dixon


Willmott Dixon Group, founded in 1852, is the UK's third largest privately-owned capital works, regeneration and support services company. The company's family values and respect for people has seen the business achieve numerous accolades as one of the best places to work in construction. Willmott Dixon for the past three years has been the highest placed major contractor in the prestigious Sunday Times Best Companies to work for list. Willmott Dixon's internal sustainability consultancy, Re-Thinking, has a number of staff trained and qualified as Certified PassivHaus Designers and is actively promoting use of the approach across its three divisions.