It has taken nine years to build these certified passive housing units – a feat the Trust says demonstrates the demand for high-performing buildings.
The Passivhaus Trust believes the growth also proves that the UK construction industry is capable of delivering these highly efficient housing units if challenged.
The latest projects to achieve Passivhaus certification include: a 72-home affordable rent and shared ownership scheme in Plymouth; a multi-use community building in Wereham village in Norfolk, built using timber, brick, and flint; and a traditional stone cottage-style self-build home in Leeds.
"Back in 2009 Y Foel Passivhaus, a detached rural self-build in Wales, became the first UK building to be certified to the Passivhaus Standard," says Jon Bootland, ceo of the Passivhaus Trust. "Fast-forward to 2018 and we now not only see hundreds of Passivhaus dwellings in all kinds of tenures, but also Passivhaus schools and university buildings, offices – and even a Passivhaus church.
"The 1000 units include both new buildings and buildings retrofitted to the EnerPHit standard – which is based on similar design and testing criteria. These contrasting projects show how the Passivhaus standard can be applied to any kind of building, for all sorts of client, and can help satisfy a range of priorities."