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new apartments


new houses

Spring 2022


Trethomas and Trecenydd Passivhaus residential scheme

The build of 12 new one-bedroom apartments and six houses designed to Passivhaus standards in Trethomas and Trecenydd, Caerphilly.

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Our team of Passivhaus experts in Wales have delivered an exciting development that includes 12 new one-bedroom apartments to Trethomas, Caerphilly, as well as six new homes in Trecenydd. Homes on both sites will be owned and managed by Caerphilly County Borough Council.

The homes at both sites are constructed to ultra-energy efficient Passivhaus standard, consisting of very high levels of insulation, extremely high-performance windows with insulated frames, airtight building fabric and a mechanical heat ventilation system. As well as helping to lower carbon emissions, these buildings will result in low energy costs for tenants and contribute towards housing need in the county borough.

After visiting the site in August 2021, Council Leader, Cllr Philippa Marsden, said:

“It was fantastic to visit the Trecenydd site recently to see the first steps on our exciting journey to build new council owned homes for the first time in 18 years. To now see work begin on the Trethomas site too really demonstrates that progress is being made.”

Cllr Lisa Phipps, the Council’s Cabinet Member for Housing, added

“With over 4,500 people registered for social housing in the county borough and a particular need for one bedroom homes, these sites are vital in helping us meet demand for local people.
Exploring innovative ways to help tenants further, by reducing their energy bills is also incredibly important to us, as is lowering carbon emissions and using local supply chains to boost our economy during such difficult times.”

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  • Project to deliver large energy savings through being designed to the ultra energy efficient Passivhaus standard.
  • Scheme builds on our record of partnering with local authorities to deliver much needed housing in their boroughs.




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