Haverfordwest · SA62
Trefin, Haverfordwest
Offers Over
3 Llwyn Onn is a contemporary new-build detached home arranged over three floors, offering versatile family accommodation with energy efficiency at its core.
Built to Passivhaus standards and designed to achieve an EPC A rating. the property incorporates triple glazing, underfloor heating, solar panels and a heat recovery system. These features combine with contemporary design to create a home focused on energy performance and comfortable modern living.
The accommodation features oak flooring, vaulted ceilings to selected bedrooms and large windows allowing an abundance of natural light throughout.
At the heart of the home is an impressive open-plan living space, incorporating a contemporary fitted kitchen with integrated appliances, flowing into the family and dining areas. Full-width rear windows frame views across the surrounding countryside, while French doors open onto a balcony overlooking the garden, providing an additional seating area from which to enjoy …
The home, in the agent’s words
- Contemporary New-Build Home
- Built to Passivhaus Standards
- Triple Glazing, Under Floor Heating
- Heat Recovery System
- Open-Plan Kitchen, Dining & Living Area
- Up to 5 Double Bedrooms, 2 En-suites
- Rear Garden & Parking for Three Vehicles
- Near Pembrokeshire Coast
- Balcony with Country Views
- Designed to Achieve an EPC A rating
Read the full agent description
3 Llwyn Onn is a contemporary new-build detached home arranged over three floors, offering versatile family accommodation with energy efficiency at its core.
Built to Passivhaus standards and designed to achieve an EPC A rating. the property incorporates triple glazing, underfloor heating, solar panels and a heat recovery system. These features combine with contemporary design to create a home focused on energy performance and comfortable modern living.
The accommodation features oak flooring, vaulted ceilings to selected bedrooms and large windows allowing an abundance of natural light throughout.
At the heart of the home is an impressive open-plan living space, incorporating a contemporary fitted kitchen with integrated appliances, flowing into the family and dining areas. Full-width rear windows frame views across the surrounding countryside, while French doors open onto a balcony overlooking the garden, providing an additional seating area from which to enjoy the outlook.
Arranged across three floors, the property offers up to five double bedrooms, including two with en-suite shower rooms. A contemporary family bathroom with a freestanding bath and separate shower is complemented by an additional shower room. A utility room and built-in storage complete the accommodation.
Externally, a private shared driveway provides parking for three vehicles. The rear garden features a lawned area, patio seating space and a useful workshop/storage room, with countryside views beyond.
Situated in the coastal village of Trefin, within the Pembrokeshire Coast National Park, the property provides access to the Pembrokeshire Coast Path, nearby coves and beaches.
Completed to a high standard and benefiting from a new-build guarantee, 3 Llwyn Onn combines energy-efficient design, flexible accommodation and a coastal village setting. Viewing is highly recommended!
VIEWING: By appointment only via the Agents.
TENURE: Freehold
SERVICES: We have not checked or tested any of the services or appliances at the property.
Property has Mains Electric, Mains Water
HEATING: Electric
TAX: Band To Be Assigned
We would respectfully ask you to call our office before you view this property internally or externally
JETH/ESL/05/26/DRAFT
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Connected for everyday life
0%of homes in the postcode can access 100+ Mbps broadband.
Available speed bands
- 30+ Mbps
- 100%
- 100+ Mbps
- 0%
- 300+ Mbps
- 0%
- 1,000+ Mbps
- 0%
Getting about
7.3 milesto Fishguard & Goodwick Rail Station
Approximate straight-line distance · DfT NaPTAN · 13 Sept 2026Background air quality
- Fine particles · PM₂.₅
- 3.9 µg/m³ · Meets the WHO guideline
- Nitrogen dioxide · NO₂
- 1.5 µg/m³ · Meets the WHO guideline
Annual background levels. For scale: the WHO 2021 guideline is 5 µg/m³ for PM₂.₅ and 10 for NO₂; the UK legal limit is 20 and 40. Lower is better; this is a 1 km model, not a reading at the door.
Defra · 2024 annual model · 1 km areaLocal information is approximate. Distances are straight-line estimates from the available location. Broadband describes postcode coverage, not the speed or service available at this home; check the address with a provider. Air quality is a modelled annual background estimate.
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The information provided in this listing is for general information purposes only and does not constitute property particulars. We make no warranties or guarantees, express or implied, regarding the accuracy, completeness, or availability of the information.
Property details are provided by the listing agent, developer, or other third parties, and we have no control over the content provided. Prospective buyers or tenants should make their own enquiries and verify all information directly with the agent or relevant party.
Information relating to Energy Performance Certificates, Home Reports, or other statutory documents should be obtained directly from the selling agent or developer where applicable.