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Greater Manchester

Rear extension plans and planning applications in Greater Manchester

Measured survey, design options, planning drawings and the application, handled for you. We design and build rear extensions across Greater Manchester, from Manchester and Oldham to Wigan, covering single-storey kitchen extensions, two-storey additions, side returns and wraparounds.

Printed floor plan and elevation drawings of a rear extension with a scale rule, tape measure and pencil

For Manchester homes we start with a measured survey, then draw options before anything is submitted. Stone and brick terraces are common around Greater Manchester. Where houses back onto a ginnel or alley, deliveries can come in from the rear, which makes the build tidier.

What does it cost in Greater Manchester?

As a guide, £1,000–£2,500 including VAT. These are guide ranges; the written quote after the survey is the figure that counts.

Do you need planning permission in Greater Manchester?

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.

Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent.

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.

Councils aim to decide householder applications within 8 weeks of validation, and prior approval within 42 days.

Where in Greater Manchester do we work?

FAQ

Questions people ask

Do I need an architect?

You need accurate drawings by someone who knows householder planning; we provide them.

Can I see the design in 3D?

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

What if planning is refused?

We review the reasons with you, amend and resubmit (often free of a second fee within 12 months in England) or appeal.

Do you cover all of Greater Manchester?

We cover 66 towns and districts in Greater Manchester, including Manchester, Oldham and Wigan.

Who builds the extension?

Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.

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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