Covering Cowbridge
We work in Cowbridge (CF71) and the places around it, including Llantwit Major, Bridgend and Barry.
Homes in South Glamorgan
Welsh homes include long terraces built into hillsides, stone cottages and modern estates, and sloping sites often shape how and where an extension can go.
What goes into a knock down and rebuild?
We assess whether rebuilding is better value than extending and renovating, prepare the planning application for the replacement dwelling, manage the demolition notice and asbestos survey, then build the new home. The process runs much like a new build once the old house is cleared.
- Planning application for the replacement dwelling
- Asbestos survey, demolition notice and service disconnections
- Reconnection of services and landscaping
What is the guide price for a knock down and rebuild in Cowbridge?
Use these ranges to budget for knock down and rebuild; the survey turns them into a fixed price for the agreed specification.
| Knock down and rebuild | Guide price |
|---|---|
| Demolition and site clearance (total) | £15,000 to £35,000 |
| Rebuild, standard specification (per m²) | £2,100 to £2,600 per m² |
| Rebuild, good specification (per m²) | £2,600 to £3,100 per m² |
| Rebuild, high specification (per m²) | £3,100 to £3,700 per m² |
How is a knock down and rebuild approved in Cowbridge?
In Wales the planning rules, including what counts as permitted development, are set by the Welsh Government, and Welsh building regulations differ in places from England’s. We check both against your house before drawings are finalised, and handle party wall notices where needed.
This needs full planning permission from your council in Wales.
What should I think about before starting?
- A replacement dwelling is usually zero-rated for VAT where the old house is demolished completely to ground level.
- Planning policy on replacement dwellings varies, especially in green belt and countryside.
How does the project run?
- Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
- Site visit. We walk the plot or existing house, look at access, levels, services and boundaries, and talk through what could be built.
- Price and paperwork. The design is priced line by line, and we submit the planning and building control applications.
- Construction and completion. One site lead co-ordinates every trade through to the building control certificate.
Knock down and rebuild: common questions
Is VAT charged on a knock down and rebuild?
Usually not on the new house, if the old one is demolished completely and the new building is a qualifying dwelling.
Do I need planning permission?
Yes, for the replacement dwelling.
Who deals with the council for a project in Cowbridge?
We do. We prepare the drawings, submit planning or permitted development paperwork if needed, and arrange building control inspections.
Knock down and rebuild near Cowbridge
- Knock down and rebuild in Llantwit Major
- Knock down and rebuild in Bridgend
- Knock down and rebuild in Barry
- Knock down and rebuild in Whitchurch
Learn more about knock down and rebuild, or see every project we cover in Cowbridge.

