Covering Llantwit Major
Llantwit Major is about 14 miles west of Cardiff. We also cover Cowbridge (4 miles to the north-east), Bridgend and Barry.
Homes in South Glamorgan
Across Wales you find valley terraces, coastal towns, rural stone houses and newer estates, so access, slopes and local materials all feature in the design.
What is included in a wraparound extension in Llantwit Major?
A wraparound extension combines a side return and a rear extension into one L-shaped build, giving the biggest possible ground-floor space on terraced and semi-detached houses. It usually creates a large open-plan kitchen, dining and living area across the back of the house.
- Steel frame or goalpost for the corner opening
- Glazing, insulation, plastering and electrics
- Optional kitchen supply and installation
What will a wraparound extension cost?
What wraparound extensions typically cost. These are guide ranges; the written quote for your house replaces them.
| Wraparound extensions | Guide price incl. VAT |
|---|---|
| Standard specification | £3,400 to £3,800 per m² |
| Good specification | £3,800 to £4,250 per m² |
| High specification | £4,250 to £4,700 per m² |
What approvals does a wraparound extension need in Wales?
Planning decisions in Wales are made by the local council, using permitted development rules set by the Welsh Government rather than England’s. Building regulations in Wales have their own approved documents, and the Party Wall etc. Act 1996 applies to work on shared walls and boundaries.
Wales has its own permitted development rules, set by the Welsh Government. Small single-storey rear extensions can often go ahead without an application, but the limits differ from England's and there is no larger-extension prior approval route, so we check the current Welsh rules for your house before drawings are finalised.
What should Llantwit Major homeowners check first?
- Roof water from an L-shape needs careful falls and outlets.
- An open-plan space this size needs a heating plan, often underfloor heating.
How does the project run?
- Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
- Free site visit. We measure up, look at access, drains and the structure, and talk through options and budget.
- Price and paperwork. The design is priced line by line, and we submit the planning and building control applications.
- We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.
Wraparound extensions: common questions
How long does a wraparound take?
Around 12 to 18 weeks on site after approvals.
Glazed roof or solid roof?
A mix usually works best: solid roof with rooflights over the kitchen and a glazed section over the dining area.
Do you work in Llantwit Major?
Yes. Llantwit Major is within our coverage for wraparound extensions, along with nearby Cowbridge and Bridgend.
Other towns nearby
- Wraparound extensions in Cowbridge
- Wraparound extensions in Bridgend
- Wraparound extensions in Barry
- Wraparound extensions in Porthcawl
Learn more about wraparound extensions, or see every project we cover in Llantwit Major.

