As previously revealed in Passive House Plus, the evidence appears to indicate that natural ventilation systems don’t adequately ventilate our homes. But does mechanical ventilation perform any better?

Grosvenor’s upgrade of two historic properties in Belgravia brings high-end passive housing to Westminster.

This 1960s Galway home was turned into a passive house - and is costing just €55 per year to heat.

Twelve units in Great Yarmouth deliver low energy bills and comfort for new tenants using patented timber frame system.

The team behind this Surrey home intended to use it as a test-bed for passive house design and construction, without necessarily expecting to achieve certification. But as the house neared completion, they realised that they were within touching distance of the coveted low energy standard.

This new home in Cumbria not only meets the passive house standard, it embraces natural and recycled materials and produces its own electricity — and achieved it all on a ‘shoestring’ budget.

This new Dungannon home shuns conventional passive house design and embraces the late 19th century Arts and Crafts movement.

A new research centre in Northern Ireland could stake a claim as being one of the greenest buildings on these islands. Not only is it passive, it boasts a whole suite of ecological features, and aims to be at the cutting edge in the research and development of new sustainable and renewable technologies.

With this passive house in Co Kildare, father-and-son building team Pat and Paul Doran of Pat Doran Construction Ltd prove that meeting the strict low energy standard can be done for even less than a ‘normal’ build – to the tune of a €20,000 reduction in build costs compared to the Department of the Environment’s suggested compliance approach.

This issue’s international selection features a developer-built passive house in Philadelphia, a big new research centre in Frankfurt, a sleek family home in Vienna, and a new low-energy factory in Canada where passive timber buildings will be prefabricated.