What is a house renovation?
A house renovation brings an older or tired home up to date. It can include rewiring, a new heating system, replastering, new floors, windows, kitchens and bathrooms, and changes to the layout. A full renovation is often combined with an extension or loft conversion.
How much does a house renovation cost in Clapham?
In Clapham, a house renovation typically costs £1,150–£2,350 per m² for a medium to full renovation, including VAT at 20% (5% may apply to homes empty for two years or more). For a typical 90 m² project that is roughly £103,500–£211,500. That range is adjusted for London, where domestic building work typically costs around 30% above the national average. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| Smaller project (63 m²) | £72,500–£148,000 |
| Typical project (90 m²) | £103,500–£211,500 |
| Larger project (126 m²) | £145,000–£296,000 |
| Rate per m² | £1,150–£2,350 |
The biggest cost drivers are:
- Extent of rewiring and replumbing
- Finishes
- Whether you live in during the work
- Windows and doors
Your exact price depends on the survey and drawings. The guide price tool gives a quick range in the meantime.
Do you need planning permission for a house renovation in Clapham?
The approval route for Clapham is set by planning law in England. In England internal renovation usually does not need planning permission unless the house is listed, when listed building consent covers internal work too. Notifiable work such as rewiring, structural changes, new windows and heating must meet building regulations.
Building regulations approval comes from the council’s building control service or a registered building control approver. The work is inspected at key stages, such as foundations, drainage and insulation, and a completion certificate is issued at the end.
At the survey we check your house’s planning history and any restrictions, and tell you which route applies.
What we handle
What we take care of:
- Condition survey and scope of works
- Decoration
- Structural repairs and damp treatment
- Building control for notifiable work
- Joinery, doors and floors
- Rewiring and heating upgrades
How long does it take?
The build itself usually takes 8 to 20 weeks on site depending on scope. Allow time beforehand for drawings and approvals, usually 6 to 12 weeks.
Building in Clapham
Space is at a premium in London, so homeowners often build out into the side return or up into the roof rather than move.
From SW4 outwards, we take on projects throughout Clapham and the surrounding parts of Greater London.
How it works
- 01
Survey and brief
We visit, discuss your ideas and budget, and survey the property or site at no cost.
- 02
Design and fixed quote
Drawings, structural calculations and an itemised, fixed price for the agreed specification.
- 03
Approvals in place
We handle planning, building control and neighbour notices before work starts.
- 04
Build and sign-off
We run the build to a written programme and hand over the completion certificate.
Questions about house renovations in Clapham
How long does a full renovation take?
Typically 8 to 20 weeks on site depending on the size of the house and scope.
How much does a house renovation cost in Clapham?
In Clapham, a house renovation typically costs £1,150–£2,350 per m² for a medium to full renovation, including VAT at 20% (5% may apply to homes empty for two years or more). A typical 90 m² project comes to roughly £103,500–£211,500. Your fixed price depends on the survey and drawings.
Do you build house renovations in Clapham?
Yes. We build house renovations across Clapham, including postcodes SW4. Every project starts with a free home visit.
Does a renovation need building regulations approval?
Some parts do, such as rewiring, structural changes, new windows and heating systems. We handle notifications.
Is VAT reduced on renovations?
Usually not; the standard 20% rate applies. A reduced 5% rate can apply when renovating a home that has been empty for at least two years.