House extensions in Wood Green
Looking to extend your home in Wood Green? Start here: extension types, guide prices for Wood Green, the planning rules that apply and how a project runs.
- Postcode districtsN8, N10, N11, N13, N15, N22
- Price regionLondon (×1.3)
- Planning rulesEngland
- Site visitFree, no obligation
Covering Wood Green and nearby
Our survey diary covers Wood Green, including N8, N10, N11, N13, N15, N22. Nearby, we also take on projects in Palmers Green (1 mile), Muswell Hill (1 mile), Harringay (1 mile), Friern Barnet (2 miles), Tottenham (2 miles). Just over the Hertfordshire border, Potters Bar is about 7 miles away.
What works best for Wood Green houses?
London's housing is dominated by Victorian and Edwardian terraces, many with a rear outrigger and a side return, and 1930s semis in the outer boroughs. Conservation areas are common, so the planning check comes first.
The types we would usually look at first for a home in Wood Green are side return extensions, kitchen extensions and wraparound extensions, depending on the garden and how the house is laid out.
Guide prices for Wood Green
Every figure below is a guide for Wood Green, adjusted for London build costs (×1.3) and including VAT. Design and council fees are shown separately on each page.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Single-storey rear extensions | 20 m² | £53,000 – £68,000 |
| Extensions over a garage | 12 m² | £32,500 – £42,500 |
| Conservatory replacement extensions | 14 m² | £39,000 – £50,500 |
| Wraparound extensions | 25 m² | £74,500 – £94,500 |
| Kitchen extensions | 20 m² | £54,500 – £69,000 |
Do extensions in Wood Green need planning permission?
In England a single-storey rear extension can usually go up to 3 m beyond the original rear wall of a semi-detached or terraced house, or 4 m on a detached house, without a planning application, provided it is no more than 4 m high, keeps eaves to 3 m within 2 m of a boundary and, with other buildings, covers no more than half the land around the original house. The larger home extension prior approval scheme raises those depths to 6 m and 8 m, with neighbours notified and a 42-day decision.
In England a single-storey side return infill is often permitted development if it stays within the height limits and is no wider than half the width of the original house. Conservation areas, listed buildings and flats always need an application, and the boundary wall usually brings in the Party Wall Act.
In a conservation area, national park, National Landscape, the Broads or a World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.
Building regulations approval is separate from planning. In England you can use the council's building control team or a registered building control approver; a full plans application gets the drawings checked before work starts, and the inspector signs the work off with a completion certificate.
Applications are decided by the local planning authority (your district, borough or unitary council).
All extension types we build in Wood Green
- Orangery extensions · from £39,000
- Single-storey rear extensions · from £27,000
- Flat roof extensions · from £27,000
- Wraparound extensions · from £46,500
- Side extensions · from £28,500
- Timber frame extensions · from £27,000
- Glass box extensions · from £39,000
- Pitched roof extensions · from £28,500
- Utility and boot room extensions · from £18,000
- Kitchen extensions · from £35,000
- Bedroom extensions · from £33,500
- Side return extensions · from £23,000
- Planning permission for extensions · from £450
- Bungalow extensions · from £34,000
- Conservatory replacement extensions · from £26,000
- Double-storey extensions · from £49,000
- Porch extensions · from £5,200
- Extensions over a garage · from £31,000
- Home office extensions · from £20,500
- Annexe extensions · from £71,500
- Building regulations for extensions · from £1,150
- Extension plans and drawings · from £1,550
Free site visit
It starts with a visit to your house to measure, check access and talk through ideas and budget.
Design and approvals
Once the layout is agreed, we deal with the council: planning permission or written confirmation that none is needed, plus building control.
Fixed written price
You receive a written, itemised price and programme. Nothing starts until you are happy with it.
Build and sign-off
We build it with one project manager, book the building control inspections and hand over the completion certificate.
Questions about extensions in Wood Green
How much does an extension cost in Wood Green?
Using our London factor (×1.3), a standard-spec single-storey extension of 20 m² is a guide £53,000 to £68,000 including VAT, and a 32 m² two-storey extension £74,500 to £98,000. Your written price follows the survey.
Do you handle building regulations?
Yes. We prepare the drawings and calculations, submit them and book inspections, ending with a completion certificate.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Wood Green, and the guide-price tool gives a range for your own size and finish in about a minute.
Will my neighbours need to be told?
If you apply for planning or prior approval the council notifies them, and in England party wall notices may be needed for work near a shared boundary.
Book a free site visit in Wood Green
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.