West Drayton, Greater London
Rear extension planning drawings in West Drayton
Measured survey, design options, planning drawings and the application, handled for you. We design, get the approvals for and build rear extensions in West Drayton and the surrounding area, with one contract from the first survey to building control sign-off.
West Drayton is covered from our Greater London round, including UB3, UB7 and UB11. Planning applications in West Drayton go to the local planning authority covering West Drayton, and we check its local design guidance for rear extensions before drawing.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
What do rear extension planning drawings cost in West Drayton?
As a guide, £1,000–£2,500 including VAT for a single-storey rear extension, or £2,000–£3,500 for a two-storey scheme. A householder planning application in England costs £548 (£575 for applications made from 8 December 2026), and a lawful development certificate for proposed work costs half the householder fee. Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission for a rear extension in West Drayton?
Here is how the rules in England apply to a rear extension in West Drayton.
A two-storey rear extension can be permitted development in England only if it projects no more than 3 metres, stays at least 7 metres from the rear boundary, matches the existing roof pitch and has obscure-glazed upper side windows. In practice most double-storey rear extensions go through a householder planning application.
Councils aim to decide householder applications within 8 weeks of validation, and prior approval within 42 days.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. At the first visit we measure what is there now and tell you which route fits: permitted development, prior approval or a planning application.
What are homes in West Drayton like to extend?
Much of West Drayton is 1920s and 1930s semis and short terraces with longer gardens than inner London, which suit full-width single-storey rear extensions. Parking suspensions, skip licences and controlled hours on residential streets shape the programme more than the build itself.
How a rear extension in West Drayton comes together
Free site visit
We measure the house and garden, look at the back wall, drainage and boundaries, and talk through what you want from the space.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
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.
Rear extension planning drawings near West Drayton
From West Drayton, the nearest places we also cover are Hayes (2.2 miles) and Hillingdon (2.3 miles).
- Rear extension planning drawings in Hayes
- Rear extension planning drawings in Hillingdon
- Rear extension planning drawings in Cranford
- Rear extension planning drawings in Stanwell
- Rear extension planning drawings in Uxbridge
Other work in West Drayton:
FAQ
Rear extension planning drawings questions in West Drayton
Can you match the brick or stone on my West Drayton house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
What do rear extension planning drawings cost in West Drayton?
As a guide, £1,000–£2,500 including VAT for a single-storey rear extension and £2,000–£3,500 for a two-storey scheme, covering the measured survey, design options and the application. The council fee is extra.
Do I need an architect?
You need accurate drawings by someone who knows householder planning; we provide them.
Do I need planning permission for a rear extension in West Drayton?
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.
Do I need a party wall agreement?
In England, usually yes if the extension is on or near a shared boundary or the foundations are close to a neighbour's building. We serve the notices.
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.