Building projects we take on in Dyfed
House extensions
- Single-storey extensions in Dyfed
- Double-storey extensions in Dyfed
- Side extensions in Dyfed
- Side return extensions in Dyfed
- Wraparound extensions in Dyfed
- Kitchen extensions in Dyfed
- Orangeries in Dyfed
- Glazed and contemporary extensions in Dyfed
- Porches in Dyfed
Loft conversions
- Dormer loft conversions in Dyfed
- Hip-to-gable loft conversions in Dyfed
- Mansard loft conversions in Dyfed
- Rooflight loft conversions in Dyfed
- Bungalow loft conversions in Dyfed
Garage, basement and barn conversions
- Garage conversions in Dyfed
- Basement conversions in Dyfed
- Barn conversions in Dyfed
- Garden annexes in Dyfed
New build homes
Renovations and structural work
Design and approvals
Guide prices in Dyfed
| 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) |
Building costs in Wales run about 8% below the UK average, and the figures for Dyfed are adjusted to reflect that.
Planning and building control in Dyfed
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 Dyfed
Wales has many terraced valley streets, stone cottages and post-war estates, so extension designs are shaped by slopes, materials and local character.
Questions about building in Dyfed
Do you cover all of Dyfed?
Yes. We take on projects across Dyfed, including Llanelli, Ammanford, Aberystwyth, Carmarthen and Haverfordwest.
How much does an extension cost in Dyfed?
A single-storey extension in Dyfed typically costs £1,800–£2,650 per m² of floor area, including VAT.
Do I need planning permission in Dyfed?
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 Dyfed?
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.