Barkingside, Greater London
Rear extension planning drawings in Barkingside
Measured survey, design options, planning drawings and the application, handled for you. We design, get the approvals for and build rear extensions in Barkingside and the surrounding area, with one contract from the first survey to building control sign-off.
Barkingside is covered from our Greater London round, including IG2, IG4 and IG5. Rear extension applications in Greater London are householder applications, which councils aim to decide within about eight weeks.
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 Barkingside?
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. We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
Do you need planning permission for a rear extension in Barkingside?
The planning route for a rear extension in Barkingside is set by England's householder rules and your council.
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. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Barkingside like to extend?
Much of Barkingside 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 Barkingside 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.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
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 Barkingside
Close by, we work in Ilford, about 1.6 miles away, and Wanstead, about 1.9 miles away.
- Rear extension planning drawings in Ilford
- Rear extension planning drawings in Wanstead
- Rear extension planning drawings in Snaresbrook
- Rear extension planning drawings in Goodmayes
- Rear extension planning drawings in Manor Park
Other work in Barkingside:
FAQ
Rear extension planning drawings questions in Barkingside
Do you handle building control in Barkingside?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Can you match the brick or stone on my Barkingside house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Can I see the design in 3D?
Yes; we produce simple 3D views so you can judge the size and light.
How long does a rear extension take to build in Barkingside?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Will I need a structural engineer?
Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.
What do rear extension planning drawings cost in Barkingside?
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.