Leatherhead, Surrey
Bungalow rear extension in Leatherhead
Thinking about a bungalow rear extension in Leatherhead? Single-storey rear extensions that keep everything on one level. Our team handles the drawings, the planning route and the build, and your contract is with one company throughout.
We cover Leatherhead (KT21 and KT22) as part of our Surrey work. For bungalows in Surrey, a rear extension is the usual way to add space without adding stairs.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
How much does a bungalow rear extension cost in Leatherhead?
Guide prices for a bungalow rear extension in Leatherhead start from our South East England rate of £2,070–£3,360 per square metre, including VAT. South East prices run above our West Midlands baseline, mainly on labour rates and clay-soil foundations.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £25,000–£40,500 |
| 4 m wide × 6 m deep (24 m²) | £49,500–£80,500 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a bungalow rear extension in Leatherhead?
Planning for a bungalow rear extension in Leatherhead follows the English householder rules.
In England a single-storey rear extension can often be built under permitted development: up to 3 metres beyond the original rear wall of an attached house, or 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres if any part is within 2 metres of a boundary.
If 3 or 4 metres is not enough, England's prior approval route allows 6 metres on a terraced or semi-detached house and 8 metres on a detached house for a single-storey rear extension. Neighbours are consulted, the council decides within 42 days, and the fee is £249, rising to £310 from 8 December 2026.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.
What are homes in Leatherhead like to extend?
Commuter semis and detached houses make up much of Leatherhead, and longer gardens make England's prior approval route for deeper rear extensions worth considering.
How a bungalow rear extension in Leatherhead comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
Approvals
Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the building control completion certificate.
Bungalow rear extensions near Leatherhead
We also build rear extensions for bungalows in nearby Ashtead (1.7 miles) and Great Bookham (2.1 miles).
- Bungalow rear extension in Ashtead
- Bungalow rear extension in Great Bookham
- Bungalow rear extension in Epsom
- Bungalow rear extension in Cobham
- Bungalow rear extension in Dorking
Other work in Leatherhead:
FAQ
Bungalow rear extension questions in Leatherhead
How long does a rear extension take to build in Leatherhead?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
What postcode areas do you cover around Leatherhead?
Including KT21 and KT22, and the surrounding Surrey area.
Is a bungalow extension cheaper?
The rates are similar per square metre; roof work can add a little.
Can I get a price without a visit?
Our online guide-price tool gives a range in a couple of minutes. A written price needs a survey.
Do I need planning permission for a rear extension in Leatherhead?
Often not for a single-storey rear extension of up to 3 metres (4 metres on a detached house) under permitted development, or up to 6 or 8 metres with prior approval, unless the house is in a conservation area or its rights have been removed.
Can I live at home while the extension is built?
Usually yes. Most of the work is outside until the back wall is opened near the end, and that stage is screened off.