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 Finchley?
In Finchley, 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. We start from a UK-wide guide and adjust it for London, where labour and materials are typically about 30% above 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 main things that change the cost:
- Kitchens and bathrooms
- Whether you live in during the work
- Structural and damp repairs
- Extent of rewiring and replumbing
Use the guide price tool to see how size and specification change the figure, then ask for a written, itemised quote.
Do you need planning permission for a house renovation in Finchley?
Here is how the rules work for a house renovation 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.
Where work involves a shared wall, building on the boundary, or digging foundations within 3 metres of a neighbour’s building and deeper than its foundations (or within 6 metres for deeper work), the Party Wall etc. Act 1996 applies and notices must be served before work starts.
Our first visit includes a check of your planning history, so you know the route before paying for drawings.
What we handle
From survey to sign-off, the job normally involves:
- Decoration
- Structural repairs and damp treatment
- Joinery, doors and floors
- Rewiring and heating upgrades
- Plastering and boarding
- Kitchens and bathrooms
How long does it take?
The build itself usually takes 8 to 20 weeks on site depending on scope. Before that, surveys, drawings and approvals usually take 6 to 12 weeks, longer if the council asks for changes.
Building in Finchley
Victorian and Edwardian terraces dominate many London streets, which is why side return, wraparound and mansard projects are so common here.
Our Finchley coverage includes postcode districts N3, and we also work in nearby places such as Hendon, Golders Green and Muswell Hill.
How it works
- 01
Visit and measured survey
A free visit to understand the project, check access and take measurements.
- 02
Design and pricing
Design options, then a fixed quote based on the chosen drawings and specification.
- 03
Approvals
Planning or permitted development confirmation, building regulations and any party wall matters.
- 04
Build and sign-off
We run the build to a written programme and hand over the completion certificate.
Questions about house renovations in Finchley
Does a renovation need building regulations approval?
Some parts do, such as rewiring, structural changes, new windows and heating systems. We handle notifications.
Do I need planning permission to renovate?
Internal work usually does not need planning permission unless the house is listed. External changes may.
How much does a house renovation cost in Finchley?
In Finchley, 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.
How long does a house renovation take in Finchley?
Typically 8 to 20 weeks on site depending on scope. Design and approvals beforehand usually take 6 to 12 weeks.
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.