Covering Sunbury-on-Thames
We work in Sunbury-on-Thames (TW16, TW17) and the places around it, including Walton-on-Thames, Hanworth and Ashford.
Homes in the South East
Many South East homes are inter-war or post-war semis and detached houses with room for rear and side extensions, while historic town centres and villages bring conservation area and listed building controls.
What goes into a knock down and rebuild?
Knock down and rebuild means demolishing an existing house and building a new one in its place, often a bungalow or poorly built post-war house replaced by a larger, more efficient home. Because the new house counts as a new dwelling, the build is usually zero-rated for VAT.
- Asbestos survey, demolition notice and service disconnections
- Demolition and site clearance
- New foundations, structure and full fit-out
How much does a knock down and rebuild cost in Sunbury-on-Thames?
Indicative costs for knock down and rebuild. London and the South East usually sit towards the top of each range.
| 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 |
Do you need permission for a knock down and rebuild in Sunbury-on-Thames?
English projects need planning clearance from the local council, building regulations sign-off from building control, and party wall notices where the work is on or near a shared boundary. We prepare and manage all three.
This needs full planning permission from the council.
What should Sunbury-on-Thames homeowners check first?
- Planning policy on replacement dwellings varies, especially in green belt and countryside.
- Asbestos is common in post-war houses and must be removed by licensed contractors where required.
What are the steps?
- Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
- Site visit. We walk the plot or existing house, look at access, levels, services and boundaries, and talk through what could be built.
- Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
- Construction and completion. One site lead co-ordinates every trade through to the building control certificate.
Knock down and rebuild: common questions
How long does it take?
Around 36 to 60 weeks including demolition.
What happens about asbestos?
An asbestos survey is done before demolition and any asbestos is removed safely first.
Who deals with the council for a project in Sunbury-on-Thames?
We do. We prepare the drawings, submit planning or permitted development paperwork if needed, and arrange building control inspections.
Knock down and rebuild near Sunbury-on-Thames
- Knock down and rebuild in Walton-on-Thames
- Knock down and rebuild in Hanworth
- Knock down and rebuild in Ashford
- Knock down and rebuild in Feltham
Learn more about knock down and rebuild, or see every project we cover in Sunbury-on-Thames.

