The London council of Ealing has appointed McLaren Construction to deliver 188 new homes following the Passivhaus principles.
Passivhaus buildings must follow strict energy efficient design standards to maintain an almost constant temperature.
They are designed to have a continuous airtight outer shell. Leakage through any gaps must be less than 0.6 of the total house volume, per hour, at 50 Pascals pressure. This rate is known as Air Changes per Hour (ACH50), measured in a process known as a blower door test.
McLaren has partnered with consultant Beyond Carbon to integrate Passivhaus principles for 71 out of the 188 new homes. The construction company estimates that this will help reduce energy consumption in the 71 homes by 70%.
The homes, in the Steyne Estate, Acton, will be spread across three buildings with a mix of London Affordable Rent (LAR), shared ownership and market price flats.
The 71 LAR and 90 shared ownership homes have received over £16m of grant funding from the Greater London Authority.
London region managing director at McLaren Construction, Darren Gill, said: “We’re delighted to be able to integrate Passivhaus design for sustainable living on this scheme. Integrating affordability and multi-generational living on the same project is visionary from Ealing Council and we look forward to bringing this to life.”
