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Streetly, West Midlands

Rear extension planning drawings in Streetly

Measured survey, design options, planning drawings and the application, handled for you. If you live in Streetly 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.

Streetly and its postcode districts B44, B73 and B74 are part of our West Midlands coverage. 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 Streetly?

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. Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.

Do you need planning permission for a rear extension in Streetly?

Whether your rear extension in Streetly 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 Streetly like to extend?

Red-brick terraces and 1930s semis make up much of Streetly. Many already have a small kitchen lean-to at the back, which a new rear extension usually replaces rather than adds to.

How a rear extension in Streetly comes together

  1. 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.

  2. Drawings and budget

    Floor plans and elevations for the options, each with a guide price.

  3. Paperwork handled

    Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.

  4. Written price, then build

    Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.

Rear extension planning drawings near Streetly

We also build rear extensions in nearby Aldridge (2.1 miles) and Sutton Coldfield (3.0 miles).

Other work in Streetly:

All rear extensions in Streetly

FAQ

Rear extension planning drawings questions in Streetly

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.

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.

Can I see the design in 3D?

Yes; we produce simple 3D views so you can judge the size and light.

Do you handle building control in Streetly?

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 Streetly 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 Streetly?

Including B44, B73 and B74, and the surrounding West Midlands area.

Next step

See what your rear extension would cost

Get a guide price online in a couple of minutes, or book a free site visit and we'll measure up and talk you through the planning route.

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