Bartley Green, West Midlands
Rear extension planning drawings in Bartley Green
Measured survey, design options, planning drawings and the application, handled for you. If you live in Bartley Green and want to know what a rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
We cover Bartley Green (B29, B31 and B32) as part of our West Midlands work. Rear extension applications in the West Midlands 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 Bartley Green?
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 Bartley Green?
Here is how the rules in England apply to a rear extension in Bartley Green.
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 Bartley Green like to extend?
Bartley Green has a lot of post-war semis and estate houses with long gardens and side access, which makes rear extensions quicker to build.
How a rear extension in Bartley Green 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 Bartley Green
Neighbouring places we cover include Halesowen (2.4 miles) and Smethwick (4.2 miles).
- Rear extension planning drawings in Halesowen
- Rear extension planning drawings in Smethwick
- Rear extension planning drawings in Oldbury
- Rear extension planning drawings in Birmingham
- Rear extension planning drawings in Hockley
Other work in Bartley Green:
FAQ
Rear extension planning drawings questions in Bartley Green
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.
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.
Are the drawings mine?
You can use them to get other quotes, subject to the terms.
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.
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.
What do rear extension planning drawings cost in Bartley Green?
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.