Covering Finchley
Our coverage around Finchley (N3) also includes Muswell Hill (2 miles to the east) and Cricklewood.
Homes in London
Terraced houses dominate many London neighbourhoods, so most projects involve shared walls, narrow access and a party wall process. Conservation areas are widespread, and some boroughs have their own mansard and basement guidance.
Which projects do we build in Finchley?
Extensions
- Single-storey extensions in Finchley
- Double-storey extensions in Finchley
- Side return extensions in Finchley
- Wraparound extensions in Finchley
- Kitchen extensions in Finchley
- Orangeries in Finchley
- Porches in Finchley
- Garden annexes in Finchley
Lofts and upward extensions
- Loft conversions in Finchley
- Dormer loft conversions in Finchley
- Hip-to-gable loft conversions in Finchley
- Mansard loft conversions in Finchley
- Bungalow and upward extensions in Finchley
Conversions
- Garage conversions in Finchley
- Basement and cellar conversions in Finchley
- House-to-flat conversions in Finchley
New builds and renovation
- New-build homes in Finchley
- Knock down and rebuild in Finchley
- House renovations in Finchley
- Structural alterations in Finchley
- Re-roofing in Finchley
Design, kitchens and bathrooms
- Architectural design and planning in Finchley
- Kitchen installation in Finchley
- Bathrooms and en-suites in Finchley
How is building work approved in Finchley?
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.
What does a project cost in Finchley?
These are UK-wide guide ranges, including VAT where it applies. The price for a project in Finchley is fixed in writing once the design and specification are agreed.
| Project | Typical guide price |
|---|---|
| Single-storey extensions | £2,600 to £4,000 per m² |
| Double-storey extensions | £2,400 to £3,850 per m² |
| Kitchen extensions | £2,600 to £4,000 per m², plus the kitchen |
| Loft conversions | £30,000 to £110,000 |
| Dormer loft conversions | £50,000 to £90,000 |
| Garage conversions | £12,000 to £54,000 |
| House renovations | £600 to £2,800 per m² |
| New-build homes | £2,000 to £3,600 per m² |
Questions from Finchley homeowners
Do you cover Finchley?
Yes. We design and build extensions, loft conversions, conversions and new homes in Finchley and across London.
How do I get a quote in Finchley?
Use the guide price tool or the form, or call 0800 088 6341. We then arrange a free site visit, and fix the price in writing once the design and specification are agreed.
Can I live at home during a project in Finchley?
For most extensions and loft conversions, yes. For whole-house renovations and rebuilds, most people move out for part of the work.

