Covering Coulsdon
Alongside Coulsdon, we also cover Purley, Banstead (3 miles to the west) and Sutton.
Homes in London
Much of London’s housing is Victorian and Edwardian terraces, which is why side return extensions, rear dormers and mansards are so common. Many streets are in conservation areas, and several boroughs use Article 4 directions that remove some permitted development rights.
What does a knock down and rebuild involve?
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.
- Feasibility: rebuild versus extend and renovate
- Planning application for the replacement dwelling
- New foundations, structure and full fit-out
How much does a knock down and rebuild cost in Coulsdon?
What knock down and rebuild typically cost. These are guide ranges; the written quote for your house replaces them.
| 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 |
What approvals does a knock down and rebuild need in England?
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 can change the price or programme?
- 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?
- Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
- 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.
- Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.
Your questions answered
Is it cheaper to knock down and rebuild or renovate?
It depends on the existing house. Where a house needs major structural work and a large extension, rebuilding can be similar cost and gives a better result. We compare both at feasibility.
What happens about asbestos?
An asbestos survey is done before demolition and any asbestos is removed safely first.
Do you work in Coulsdon?
Yes. Coulsdon is within our coverage for knock down and rebuild, along with nearby Purley and Banstead.
Other towns nearby
- Knock down and rebuild in Purley
- Knock down and rebuild in Banstead
- Knock down and rebuild in Sutton
- Knock down and rebuild in Carshalton
Learn more about knock down and rebuild, or see every project we cover in Coulsdon.

