Extensions in Woking: design, planning and build
From a small utility to a two-storey addition, we take on house extensions throughout Woking, starting with a free visit and a planning check.
- Postcode districtsGU21, GU22, GU23, GU24, KT14, KT15
- Price regionSouth East England (×1.12)
- Planning rulesEngland
- Site visitFree, no obligation
Covering Woking and nearby
Across GU21, GU22, GU23, GU24, KT14, KT15, we can visit, measure and advise. Nearby, we also take on projects in Weybridge (6 miles), Guildford (6 miles), Egham (8 miles), Walton-on-Thames (8 miles), Camberley (8 miles). For homes towards Hampshire, Farnborough is around 9 miles away.
Which extension suits a Woking home?
Homes across the South East range from Victorian terraces in the older town centres to large detached houses on the edges, so the right extension type varies street by street.
The types we would usually look at first for a home in Woking are double-storey extensions, wraparound extensions and orangery extensions, depending on the garden and how the house is laid out.
Woking extension prices at a glance
We publish guide prices so you can budget before anyone visits. For Woking they are adjusted by ×1.12, the factor we use across South East England.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Conservatory replacement extensions | 14 m² | £33,500 – £43,500 |
| Single-storey rear extensions | 20 m² | £45,500 – £58,500 |
| Orangery extensions | 16 m² | £50,000 – £63,000 |
| Side return extensions | 11 m² | £29,500 – £37,000 |
| Double-storey extensions | 32 m² | £64,500 – £84,500 |
Planning rules in Woking
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 two-storey rear extension is permitted development only if it projects no more than 3 m from the original rear wall, sits at least 7 m from the rear boundary, matches the roof pitch and uses obscure, non-opening side windows upstairs. Most two-storey extensions therefore go through a householder planning application, which costs £548 from 1 April 2026 and normally takes about 8 weeks.
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.
If the work involves a shared wall, building on the boundary, or digging foundations within 3 m (sometimes 6 m) of a neighbour's building, the Party Wall etc. Act 1996 applies and notice must be served before work starts: two months for work to a party wall, one month for new walls on the boundary and for excavations.
Applications are decided by the local planning authority (your district, borough or unitary council).
Extension types and starting prices
- Wraparound extensions · from £40,000
- Planning permission for extensions · from £350
- Porch extensions · from £4,450
- Bungalow extensions · from £29,000
- Conservatory replacement extensions · from £22,000
- Double-storey extensions · from £42,500
- Side return extensions · from £20,000
- Building regulations for extensions · from £1,000
- Glass box extensions · from £33,500
- Kitchen extensions · from £30,000
- Flat roof extensions · from £23,500
- Single-storey rear extensions · from £23,500
- Orangery extensions · from £33,500
- Utility and boot room extensions · from £15,500
- Side extensions · from £24,500
- Extensions over a garage · from £26,500
- Pitched roof extensions · from £24,500
- Home office extensions · from £17,500
- Timber frame extensions · from £23,500
- Extension plans and drawings · from £1,300
- Annexe extensions · from £61,500
- Bedroom extensions · from £29,000
Free site visit
We visit your Woking home, measure up, talk through what you want and check the planning position.
Design and approvals
We draw the design, agree it with you and handle planning or permitted development checks and building regulations.
Fixed written price
We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.
Build and sign-off
Work is carried out to the agreed programme, inspected by building control and signed off at the end.
Questions about extensions in Woking
How much does an extension cost in Woking?
Using our South East England factor (×1.12), a standard-spec single-storey extension of 20 m² is a guide £45,500 to £58,500 including VAT, and a 32 m² two-storey extension £64,500 to £84,500. Your written price follows the survey.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Woking, 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.
Do you cover all of Woking?
Yes, including the surrounding parts of Surrey. Site visits are free and there is no obligation.
Do you handle building regulations?
Yes. We prepare the drawings and calculations, submit them and book inspections, ending with a completion certificate.
Book a free site visit in Woking
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.