Building projects we take on in West Glamorgan
House extensions
- Single-storey extensions in West Glamorgan
- Double-storey extensions in West Glamorgan
- Side extensions in West Glamorgan
- Side return extensions in West Glamorgan
- Wraparound extensions in West Glamorgan
- Kitchen extensions in West Glamorgan
- Orangeries in West Glamorgan
- Glazed and contemporary extensions in West Glamorgan
- Porches in West Glamorgan
Loft conversions
- Dormer loft conversions in West Glamorgan
- Hip-to-gable loft conversions in West Glamorgan
- Mansard loft conversions in West Glamorgan
- Rooflight loft conversions in West Glamorgan
- Bungalow loft conversions in West Glamorgan
Garage, basement and barn conversions
- Garage conversions in West Glamorgan
- Basement conversions in West Glamorgan
- Barn conversions in West Glamorgan
- Garden annexes in West Glamorgan
New build homes
Renovations and structural work
Design and approvals
Guide prices in West Glamorgan
| Project | Guide range (inc VAT) |
|---|---|
| Single-storey extensions | £1,800–£2,650 per m² of floor area |
| Double-storey extensions | £1,500–£2,300 per m² of floor area (both floors) |
| Dormer loft conversions | £44,000–£62,500 for a typical rear dormer with en-suite |
| Garage conversions | £16,500–£27,500 for a single integral garage |
| House renovations | £850–£1,650 per m² for a medium to full renovation |
| New build homes | £1,850–£2,950 per m² of floor area (build cost) |
We start from a UK-wide guide and adjust it for Wales, where labour and materials are typically about 8% below average.
Planning and building control in West Glamorgan
In Wales a single-storey rear extension is often permitted development: up to 4 metres beyond the rear wall and up to 4 metres high, with eaves no higher than 3 metres within 2 metres of a boundary and no more than half the land around the original house covered. Wales has no larger home extension prior approval route, so deeper extensions need a planning application, as do extensions to flats, listed buildings and houses whose rights have been removed.
In Wales roof enlargements such as rear dormers can be permitted development within volume limits and design conditions. Dormers facing a road, balconies and conservation-area work need permission.
Building regulations in Wales are set by the Welsh Government. Approval comes from the council’s building control service or a registered building control approver, with inspections during the work and a completion certificate at the end.
Building in West Glamorgan
Terraced houses in Welsh towns often have narrow plots, which suits rear and side return extensions and rear dormers.
Questions about building in West Glamorgan
Do you cover all of West Glamorgan?
Yes. We take on projects across West Glamorgan, including Swansea, Neath, Gorseinon and Clydach.
How much does an extension cost in West Glamorgan?
A single-storey extension in West Glamorgan typically costs £1,800–£2,650 per m² of floor area, including VAT.
Do I need planning permission in West Glamorgan?
In Wales a single-storey rear extension is often permitted development: up to 4 metres beyond the rear wall and up to 4 metres high, with eaves no higher than 3 metres within 2 metres of a boundary and no more than half the land around the original house covered. Wales has no larger home extension prior approval route, so deeper extensions need a planning application, as do extensions to flats, listed buildings and houses whose rights have been removed.
Who approves building work in West Glamorgan?
Building regulations in Wales are set by the Welsh Government. Approval comes from the council’s building control service or a registered building control approver, with inspections during the work and a completion certificate at the end.