Ickenham, Greater London
Rear extension planning drawings in Ickenham
We plan and build rear extensions for homeowners in Ickenham. Measured survey, design options, planning drawings and the application, handled for you. Start with a free site visit, then a written price once the design is agreed.
Ickenham sits in Greater London, with postcode districts including HA4, UB8 and UB10. 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 Ickenham?
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. These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a rear extension in Ickenham?
Whether your rear extension in Ickenham needs a planning application depends on its size, your house and any local restrictions.
England's rules allow a rear extension of more than one storey without an application only when it is no deeper than 3 metres and at least 7 metres from the boundary opposite the rear wall, and never on designated land. Most two-storey schemes need householder planning permission.
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 Ickenham like to extend?
Much of Ickenham 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 Ickenham comes together
Survey visit
We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
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.
Build and sign-off
We build to the approved drawings with regular updates, then hand over the building control completion certificate and any guarantees from suppliers.
Rear extension planning drawings near Ickenham
Neighbouring places we cover include Ruislip (1.1 miles) and Ruislip Manor (1.5 miles).
- Rear extension planning drawings in Ruislip
- Rear extension planning drawings in Ruislip Manor
- Rear extension planning drawings in South Ruislip
- Rear extension planning drawings in Uxbridge
- Rear extension planning drawings in Hillingdon
Other work in Ickenham:
FAQ
Rear extension planning drawings questions in Ickenham
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 you handle building control in Ickenham?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Do I need an architect?
You need accurate drawings by someone who knows householder planning; we provide them.
Can you match the brick or stone on my Ickenham house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
What postcode areas do you cover around Ickenham?
Including HA4, UB8 and UB10, and the surrounding Greater London area.
How long does a rear extension take to build in Ickenham?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.