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.

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.

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.

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

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?

Lark Rise is an elegant new passive house in rural Buckinghamshire designed by bere:architects, but it is more than ‘just’ a passive house. Because it produces and stores so much of its own energy through on-site solar power, it is a certified passive house ‘plus’, and in this article, its architect Justin Bere explains how dwellings like this can play a key role in decarbonising our economies and societies in the coming decades.

With a decade of experience designing primary schools to the passive house standard under their belt, Architype have now designed the UK’s first passive secondary school — and all of the evidence suggests there is no better way to ensure a healthy, comfortable environment that is supremely conducive to learning.

Built mostly with clay blocks and sited above the sandy shores of Seaton, on the Devon coast, this new development of eight high-end apartments not only meets the passive house ‘plus’ standard — meaning it pairs the requisite ultra-low energy fabric with a substantial amount of renewable energy generation — but it also boasts serious attention to the use of ecological and healthy material.

A rundown 1970s scheme of one-bedroom, single storey social housing units in Ballyshannon, Co Donegal, has been transformed into a pioneering development of cosy, A-rated, NZEB-busting homes. The pioneering project – the first completed under Ireland’s deep retrofit pilot scheme – also breathed new life into an unloved green area and is expected to help fuel a regeneration project in the town.

There is no shortage of anecdotal evidence that home energy retrofits, done well, can improve the health of those who receive them — and equally there are horror stories about shoddy upgrades causing damp, mould and illness. But what does the evidence say about how energy upgrades effect occupant health, and what lessons can be learned for the future of how we renovate our homes? Kate de Selincourt reports.

Over the last decade, Cosgrave Developments have set about building a new neighbourhood near the south Dublin seaside town of Dún Laoghaire. Honey Park and Cualanor are two adjacent schemes comprising nearly 2,000 low energy homes, one of which houses this magazine’s editor, who has found a scheme with green credentials that go far beyond a good energy rating.

In 2016, three British sustainable building experts were asked to design a new school, housing and other facilities for an eco village in Tanzania that caters to the country’s orphans. They aimed to take the principles of passive house design and apply them in a low-cost, lowtech manner to demonstrate that sustainable, comfortable and affordable buildings could be accessible to the people of rural Tanzania.

This is the story of the project so far.

In the midst of a national housing crisis, this new development in Dún Laoghaire sets a hopeful and inspiring example: high quality, high density, rapid build social housing that needs almost no energy to heat and is within walking distance of shops, services and the seafront. No wonder it was one of the first projects to be certified to a rigorous new sustainability standard.

An award-winning social housing development in South Dublin points to a sustainable way out of Ireland’s housing crisis.

Taking its cues from the original historic almshouse on site, St John’s Lichfield chose to build their new sheltered housing development for older persons to the passive house standard as part of high-quality design that emphasised community, calm and comfort.

One of Ireland’s pioneering and most consequential green organisations, Tipperary Energy Agency, turned 20 at the end of February, evolving from one man buried in sawdust to a 24 strong team whose efforts are influencing national policy and earning European plaudits. But why has the agency endured and grown, and what lessons can be learned to help others play their part in delivering the transition we so urgently need to low energy buildings and clean energy generation? Two of the central figures in the agency’s development spill the beans, along with some of the many partners the agency has worked with over the years.

Architect Donal Ryan’s new low energy home in Thurles, Co. Tipperary attempts to marry design and passive house principles, a fact that’s manifest in its minimally-glazed yet striking north-facing façade.

Built on a particularly exposed site near Chichester where winter temperatures plummet all too frequently – down as low as minus sixteen – the award-winning Curly House had to overcome several challenges.

Featured in a case study in Passive House Plus not long after it was completed in 2015, quantity surveyor John Carney’s passive house on the windswept but sunny Waterford coast has now been occupied for almost three years.

As of 16 April, owners of pre 2011 Irish homes are now eligible for generous grants to retrofit heat pumps, and in so doing help to create comfortable, economical, low carbon homes. But what’s the thinking behind the scheme, and what results can participating homeowners expect?

The first social housing scheme of any kind to top Ireland’s BER scale, this project is a timely reminder that in the midst of a national housing emergency, it is possible to tackle climate change and blitz the forthcoming nearly zero energy building targets, while housing the most vulnerable in society in healthy, fuel poverty-proof homes predicted to incur zero heating cost.

An oversized passive house may be no more sustainable than a correctly sized house built to a more modest spec. In the latest instalment of her journey to build a passive family home, Nessa Duggan finds that visiting some real passive houses may force a change in approach regarding size and complexity, with potentially significant cost benefits.