Extending your home in Stockport
Every type of house extension in Stockport, from single-storey kitchen extensions to two-storey additions, side returns and orangeries. We design, handle the approvals and build.
- Postcode districtsM19, SK1, SK2, SK3, SK4, SK5
- Price regionNorth West England (×0.95)
- Planning rulesEngland
- Site visitFree, no obligation

Areas we cover around Stockport
We cover Stockport and the postcode districts M19, SK1, SK2, SK3, SK4, SK5. Nearby, we also take on projects in Hazel Grove (2 miles), Cheadle Hulme (3 miles), Denton (4 miles), Hyde (4 miles), Droylsden (5 miles). For homes towards Cheshire, Wilmslow is around 6 miles away.
Stockport extension prices at a glance
Use these Stockport guide prices to sense-check a budget; the guide-price tool narrows them to your own size, and the site visit turns them into a written figure.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Conservatory replacement extensions | 14 m² | £28,500 – £37,000 |
| Kitchen extensions | 20 m² | £39,500 – £50,500 |
| Single-storey rear extensions | 20 m² | £38,500 – £49,500 |
| Double-storey extensions | 32 m² | £54,500 – £71,500 |
| Wraparound extensions | 25 m² | £54,500 – £69,000 |
Approvals for an extension in Stockport
In England a single-storey rear extension can usually go up to 3 m beyond the original rear wall of a semi-detached or terraced house, or 4 m on a detached house, without a planning application, provided it is no more than 4 m high, keeps eaves to 3 m within 2 m of a boundary and, with other buildings, covers no more than half the land around the original house. The larger home extension prior approval scheme raises those depths to 6 m and 8 m, with neighbours notified and a 42-day decision.
In England a single-storey side return infill is often permitted development if it stays within the height limits and is no wider than half the width of the original house. Conservation areas, listed buildings and flats always need an application, and the boundary wall usually brings in the Party Wall Act.
In a conservation area, national park, National Landscape, the Broads or a World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.
Building regulations approval is separate from planning. In England you can use the council's building control team or a registered building control approver; a full plans application gets the drawings checked before work starts, and the inspector signs the work off with a completion certificate.
Applications are decided by the local planning authority (your district, borough or unitary council).
What works best for Stockport houses?
The North West has a high share of Victorian and Edwardian terraces with rear yards and outriggers, plus large areas of inter-war semis in the suburbs.
For many houses here, side return extensions, double-storey extensions or single-storey rear extensions gives the most useful space for the budget.
Extension types and starting prices
- Orangery extensions · from £28,500
- Side extensions · from £20,500
- Extension plans and drawings · from £1,100
- Extensions over a garage · from £22,500
- Side return extensions · from £17,000
- Bedroom extensions · from £24,500
- Wraparound extensions · from £34,000
- Annexe extensions · from £52,000
- Porch extensions · from £3,800
- Building regulations for extensions · from £850
- Double-storey extensions · from £36,000
- Single-storey rear extensions · from £19,500
- Home office extensions · from £15,000
- Timber frame extensions · from £19,500
- Utility and boot room extensions · from £13,000
- Glass box extensions · from £28,500
- Kitchen extensions · from £25,500
- Bungalow extensions · from £24,500
- Planning permission for extensions · from £300
- Flat roof extensions · from £19,500
- Conservatory replacement extensions · from £19,000
- Pitched roof extensions · from £21,000
Free site visit
We visit your Stockport home, measure up, talk through what you want and check the planning position.
Design and approvals
Once the layout is agreed, we deal with the council: planning permission or written confirmation that none is needed, plus building control.
Fixed written price
With the design and specification agreed, you get a fixed written price and a start date.
Build and sign-off
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Questions about extensions in Stockport
How much does an extension cost in Stockport?
Using our North West England factor (×0.95), a standard-spec single-storey extension of 20 m² is a guide £38,500 to £49,500 including VAT, and a 32 m² two-storey extension £54,500 to £71,500. Your written price follows the survey.
Do you handle building regulations?
Yes. We prepare the drawings and calculations, submit them and book inspections, ending with a completion certificate.
Who do I contract with?
Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.
Do I need planning permission for an extension in Stockport?
Not always. It depends on the size, position and your property's history. Many single-storey rear extensions in England are permitted development or can use prior approval.
Book a free site visit in Stockport
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.