5 Bedroom Detached House, New Coastal Passivhaus Development, Trefin, Pembrokeshire

PassivHaus New Homes Development of Just Three Five-Bedroom Residences

Fine and Country West Wales are delighted to present the Greengull, Llwyn Onn development—an exclusive collection of just three superior detached properties, each exemplifying the pinnacle of design and sustainable living. Constructed to PassivHaus standards, these homes are engineered to be as energy-efficient and economical as possible, offering an exceptional living environment with consistently controlled temperatures and continuously filtered air.

Attractively designed and partially clad in Siberian Larch, these residences are thoughtfully crafted to harmonise with their surroundings in the sought-after Trefin Conservation Area. The architectural brilliance of these properties is evident in their ultra-quiet living spaces, underscored by triple-glazed windows that ensure tranquillity within. Each home is uniquely designed, with subtle variations in style and perspective, and has been favourably reviewed by the Design Commission for Wales. This endorsement highlights the flexible, stylish modern accommodations that set these properties apart.

A “PassivHaus” might look like a normal house, but it’s much more than that:

Comfortable – constant internal temperature.

Healthy – internal air is continuously circulated and filtered.

Quiet – triple-glazed windows minimise external noise.

Economic – approximately 90% lower energy costs than a conventional build.

At the heart of each home, an attractive open-plan living area seamlessly connects to a south-facing terrace, boasting expansive countryside views. The integration of living spaces continues with a light-bathed dining area featuring full-height windows and a chic, modern kitchen with dual-aspect views. The large windows in the southern elevation flood the interior with light and contribute significantly to the overall energy efficiency of the homes.

The upper levels are equally impressive, featuring a luxurious master bedroom with an ensuite and spectacular views, alongside two additional bedrooms and a modern family bathroom.

The lower ground floor offers versatile living options, with potential for annexe opportunities. This space could accommodate two additional bedrooms or be utilised as a gym, studio, or office. It also houses the essential utility and plant rooms, adding functional space to the elegant design.

Externally, the properties feature beautifully landscaped gardens and ample parking for up to three vehicles. With stunning countryside vistas and just a stone’s throw from the idyllic beaches of Trefin, these homes offer a rare opportunity to own a new property within the Pembrokeshire National Park. Additionally, the development boasts easy access to larger nearby towns, enhancing connectivity and convenience.

Each residence at Llwyn Onn (Ash Grove) captures the essence of sophisticated, eco-conscious living in one of North Pembrokeshire’s most coveted locales. This exclusive opportunity is available only through Fine and Country West Wales.