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.

View Patron members

View members by category

Search map

Faithful+Gould Ltd



FBM Architects


FBM are a Passivhaus practice with over 25 years’ experience in the design and construction of low-energy, sustainable buildings. We have expert knowledge in the retrofit of post-war residential and education buildings and designed one of the top four Retrofit for the Future houses, achieving an 80% energy reduction. We transform large university buildings using innovative sustainable measures that radically improve the learning environment and have also designed Code Level 5 & 6 houses and BREEAM Excellent offices. We always look to adopt fabric-first measures that will deliver excellent results without the need for complex controls or high maintenance.


FBN Passivhaus Ltd



FCD Architecture


Tony Godwin founded FCD Architecture in North London in 2004. The practice is now based in the Rutland village of Whitwell and works, in the main, within a 30 miles radius of the office. The first letters of the practice name are taken from the three essentials of architecture established by Sir Henry Wotton in his 1624 treatise on the architecture of the English country house – F irmness, C ommodity and D elight.


FORM Design Group

Walton On Thames


Forward Studio


Four Walls


A multi-disciplinary practice that specialises in building performance evaluation, spanning from single project technical support through to industry-wide research. Four Walls aims to effect positive change in building practices and standards; to help close the performance gap between the predicted and actual energy use; and to help ensure the built environment is a healthy place for people.