Parc Eirin sits within beautiful surroundings where residents step straight from their doors into the breathtaking hills and valleys of South Wales. Despite being in the region’s historic industrial heartland, the development offers surprising seclusion and tranquillity. Covering 15 acres at the head of the Ely Valley—2.5 km south of Gilfach Goch and 3 km west of Tonyrefail—Parc Eirin benefits from easy access to local amenities. Tonyrefail provides primary and secondary schools, a library, churches, shops, pubs and a rugby club. Excellent transport links connect via the A4093 to the A4119 (Llantrisant, M4) and A4061 (Bridgend), while additional services are available at Llantrisant.

Net-Zero Innovation at Its Core

Parc Eirin is more than a picturesque development, it’s a pioneering net-zero community. The low-carbon homes feature:

• Shared ground-source heat pumps.

• Rooftop solar PV with intelligent battery storage.

• Smart thermal water tanks.

• Advanced energy management systems.

• Electric vehicle charging points.

 

These homes achieve approximately 45 % greater energy efficiency than typical new UK homes, with solar PV covering around 67 % of annual demand—and some households even reaching net-zero energy use.

By combining highly insulated thermal envelopes with renewable technologies, Parc Eirin reduces residents’ energy bills and carbon footprint. Smart systems optimise power usage, storing solar energy for evening use and exporting surplus back to the grid—helping stabilise the energy network.

Completed Phases & Future Building

Phases 1–3 (totaling 111 homes) have been fully completed, delivering the first wave of innovative, comfortable, low-energy living. Tirion has stated work on phases 4–6, with construction set from 2025 to 2027, expanding the community further.

Designed for Tomorrow

Parc Eirin isn’t just ready for today, it’s fit for the future:

• Homes built to net-zero-ready standards, with no future retrofit needs.

• Award-winning sustainable placemaking within a vibrant, nature-facing neighbourhood.

• A collaborative, data-driven approach that optimises design, performance and resident comfort.

 

Community Focus & Connectivity
 

The National Cycle Route 4 runs adjacent to Parc Eirin, offering scenic, off-road cycling and walking routes connecting to the wider Celtic Trail network. Residents benefit not only from eco-friendly living, but from a community connected to both nature and each other.