Greater Manchester
Larger home extension prior approval (England) in Greater Manchester
Up to 6 m (attached) or 8 m (detached) deep, after neighbour consultation. Across Greater Manchester we handle the whole rear extension: survey, drawings, the planning route, building control and the build. Towns we cover here include Manchester, Oldham and Wigan.
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.
How much does a prior approval rear extension cost in Greater Manchester?
Guide prices for a prior approval rear extension in Greater Manchester start from our North West England rate of £1,790–£2,910 per square metre, including VAT. North West prices sit below our West Midlands baseline; access on terraced streets is the main variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £21,500–£35,000 |
| 4 m wide × 5 m deep (20 m²) | £35,500–£58,500 |
| 4 m wide × 6 m deep (24 m²) | £43,000–£70,000 |
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 in Greater Manchester?
If 3 or 4 metres is not enough, England's prior approval route allows 6 metres on a terraced or semi-detached house and 8 metres on a detached house for a single-storey rear extension. Neighbours are consulted, the council decides within 42 days, and the fee is £249, rising to £310 from 8 December 2026.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent.
Where in Greater Manchester do we work?
- Manchester
- Oldham
- Wigan
- Bolton
- Stockport
- Salford
- Rochdale
- Sale
- Bury
- Altrincham
- Middleton
- Ashton-under-Lyne
- Leigh
- Stretford
- Urmston
- Chadderton
- Eccles
- Tyldesley
- Hyde
- Walkden
- Prestwich
- Radcliffe
- Cheadle Hulme
- Heywood
- Denton
- Stalybridge
- Ashton in Makerfield
- Westhoughton
- Farnworth
- Saddleworth
- Hindley
- Golborne
- Droylsden
- Whitefield
- Swinton
- Royton
- Atherton
- Old Trafford
- Dukinfield
- Failsworth
- Hazel Grove
- Irlam
- Horwich
- Manchester City Centre
- Bramhall
- Ramsbottom
- Bredbury
- Hale
- Longsight
- Didsbury
- Fallowfield
- Littleborough
- Burnage
- Little Hulton
- Marple
- Cheetham Hill
- Lees
- Hollinwood
- Crumpsall
- Timperley
- Uppermill
- Ince-in-Makerfield
- Blackley
- Kearsley
- Little Lever
- Abram
FAQ
Questions people ask
How deep can I go with prior approval?
6 metres on attached houses and 8 metres on detached houses, single-storey only, up to 4 metres high.
Can my neighbours stop it?
They can object; the council then judges the effect on their amenity. Many schemes are approved after objections.
What happens after 42 days?
If the council has not decided, you can proceed. We still recommend waiting for written confirmation where possible.
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.