Covering Isleworth
Our coverage around Isleworth (TW7) also includes Hounslow (1 miles to the south-west) and Heston.
Homes in London
London projects often mean working on period terraces with neighbours on both sides, tight access through the house and conservation area controls, so careful planning and party wall work matter as much as the build.
What do you get with 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.
- Feasibility: rebuild versus extend and renovate
- Planning application for the replacement dwelling
- Demolition and site clearance
How much should I budget for a knock down and rebuild?
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 Isleworth?
In England we deal with the council’s planning team for permission or a lawful development certificate, with building control (the council or a registered building control approver) for inspections, and with neighbours under the Party Wall etc. Act 1996 where it applies.
This needs full planning permission from the council. We prepare the drawings and supporting documents, submit the application and respond to the planning officer.
What should Isleworth homeowners check first?
- You will need somewhere to live for most of a year.
- Asbestos is common in post-war houses and must be removed by licensed contractors where required.
What are the steps?
- 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.
- Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
- We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.
What people ask before starting
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.
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.
Who deals with the council for a project in Isleworth?
We do. We prepare the drawings, submit planning or permitted development paperwork if needed, and arrange building control inspections.
Knock down and rebuild in nearby towns
- Knock down and rebuild in Hounslow
- Knock down and rebuild in Heston
- Knock down and rebuild in Richmond
- Knock down and rebuild in Southall
Learn more about knock down and rebuild, or see every project we cover in Isleworth.