This home on the edge of the Cotswolds, built with cross-laminated timber, now holds the distinction of being the UK’s most airtight home, with the client even doing a significant chunk of the airtightness taping himself. What’s more, it demonstrates how passive homes that generate their own renewable power may escape the worst of the energy price crisis.

Rural Ireland has a crisis of dereliction, with numerous government policies aimed at breathing new life into thousands of old, vacant buildings. The careful transformation of one 19th century schoolhouse into a small, beautiful home shows a way forward for the sensitive, climate-conscious renovation of many of these properties.

The pioneering Cannock Mill development in Colchester is just the second cohousing project in the UK to achieve passive house certification, making it a leader not just in terms of its thermal performance, but in demonstrating the vital role shared living can play in both building vibrant communities, and in mitigating the climate crisis.

Since Erne Campus opened its doors in September, students of South West College in Enniskillen can now experience one of the world’s most environmentally advanced higher education buildings, and the largest building in the world so far certified to the passive house premium standard, in recognition of both its highly efficient building fabric and the large amount of solar energy it generates.

Run-down terraces are an all-too-common sight in towns and villages across Ireland, but an ambitious deep retrofit project in Tralee provides an inspiring blueprint for regeneration, taking a cold 19th century terraced office and turning it into a beautifully designed space with tiny energy bills, fit for the 21st century.

A new housing scheme designed by Coady Architects in Wicklow has achieved the highest green home certification – while suggesting that the convictions of one practice on a single project can help to transform the industry.

The deep retrofit of this 1930s dwelling on the Hampshire coast provides a pitch-perfect example of how to transform old dwellings while preserving their original structure and minimising embodied carbon, utterly transforming the living space without the need for an extension, and creating a cosy home that uses two-thirds less energy than before.

A striking new oak-framed passive house in an area of outstanding natural beauty in the English countryside has just opened its doors to the public, and already there has been a flood of guests seeking to experience life in a passive house.

This Enerphit project in the suburbs of South Dublin has dramatically transformed and extended a dated 1970s dwelling by adding an extra storey, radically reducing its energy consumption and creating a smartly-designed, light filled family home and office.

This issue features a passive house hostel situated in the town of Zegama, on the route of the Camino de Santiago.

Most people think of cold, cramped and poor-quality buildings when they think of student accommodation, but two new passive house residences at King’s College, Cambridge are rewriting the rulebook, with their focus on occupant comfort, architectural quality, and an enlightened, long-term view of construction costs.

An intriguing new passive house in Dundee takes the traditional ‘box’ form associated with the standard and turns it on its head, using a series of pitched roofs and different claddings to make it feel more like a traditional city terrace than a single dwelling – built with a heavy emphasis on carbon sequestering materials.

Complete with butterfly roofed extension, this fabric first renovation has turned a cold and uninspiring 1970s bungalow into a cosy A-rated modern home, with some clever design touches helping to open the house up to wide-angle views and dramatic coastal light.

Sometimes it takes the constraints of a challenging site to bring out the best possible design, and that was certainly the case for this Limerick City passive house, where the project team managed to deliver a unique, curving passive house in response to a tricky urban plot.

This issue features a new nursery school in Paris, built to the Passive House Institute’s low energy building standard.

In recent years, as energy efficiency targets for new buildings have tightened, attention has turned to cutting the embodied carbon of buildings by switching from materials like concrete and steel to lower carbon alternatives like timber. But if we are serious about solving the ecological emergency as well as stabilising the climate, we must look even further than embodied carbon, and think more deeply about the core values we apply to materials and buildings, and the manner in which we use them.

By Lenny Antonelli & AECB CEO Andy Simmonds

Following its commitment to retrofit one quarter of dwellings in the country by 2030, the Irish government has now announced the establishment of four new centres of excellence for retrofit training, building on the training approach developed to help the industry meet the NZEB standard for new buildings. Workers from state-owned company Bord na Móna are among the first to undergo training as the company transitions out of peat extraction.

The extensive energy and ventilation upgrade of 12 run-down bungalows at College View sheltered housing scheme in Wexford town not only transformed the lives and comfort of residents, but an extensive period of post-occupancy study has yielded important lessons for future projects.

This issue features the University of Chicago’s Warren Woods ecological field station, which was the first passive certified building of its type in North America.

This all-wood passive-certified home in the village of Kippen was built directly by its architect owners, who not only achieved the passive house standard but did so with an ecological approach that sought to use building materials ultra-efficiently and make it easy to deconstruct and recycle the building at the end of its life.

A new passive house on Galway Bay beautifully blends vernacular design with touches of Arts & Crafts while still appearing thoroughly contemporary, but under its neat exterior is the thinking of an architectural practice striving to reduce the environmental impact of its buildings, inspired by the Architects Declare pledge.

Angle House in north London is a wonderful example of sustainable urban housing: modest in scale and built on a run-down site in the heart of north London, it boasts a passive approach to energy efficiency and some beautiful design touches.

Where basements are present in low energy buildings, they can prove a weak spot without particular care and attention, as Passive House Association of Ireland board member John Morehead of Wain Morehead Architects Ltd explains.

Proper ventilation has been recognised as an important quality for school buildings at least since the Victorian era. But, in the current pandemic, have we lost sight of the role of ventilation?