Swinton house extensions
From a small utility to a two-storey addition, we take on house extensions throughout Swinton, starting with a free visit and a planning check.
- Postcode districtsM27, M30
- Price regionNorth West England (×0.95)
- Planning rulesEngland
- Site visitFree, no obligation
Choosing the right extension in Swinton
Across the North West, terraced houses with small rear yards suit compact rear and side return extensions, while suburban semis have room for more.
The types we would usually look at first for a home in Swinton are side return extensions, kitchen extensions and double-storey extensions, depending on the garden and how the house is laid out.
Approvals for an extension in Swinton
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 two-storey rear extension is permitted development only if it projects no more than 3 m from the original rear wall, sits at least 7 m from the rear boundary, matches the roof pitch and uses obscure, non-opening side windows upstairs. Most two-storey extensions therefore go through a householder planning application, which costs £548 from 1 April 2026 and normally takes about 8 weeks.
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).
Covering Swinton and nearby
Postcode districts we cover around Swinton include M27, M30. We also work in nearby Eccles (1 mile), Walkden (2 miles), Salford (3 miles), Urmston (4 miles), Prestwich (4 miles). Just over the Merseyside border, Golborne is about 10 miles away.
Swinton extension prices at a glance
We publish guide prices so you can budget before anyone visits. For Swinton they are adjusted by ×0.95, the factor we use across North West England.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Double-storey extensions | 32 m² | £54,500 – £71,500 |
| Side return extensions | 11 m² | £25,000 – £31,500 |
| Kitchen extensions | 20 m² | £39,500 – £50,500 |
| Extensions over a garage | 12 m² | £23,500 – £31,000 |
| Wraparound extensions | 25 m² | £54,500 – £69,000 |
| Conservatory replacement extensions | 14 m² | £28,500 – £37,000 |
| Orangery extensions | 16 m² | £42,500 – £53,500 |
Extension types and starting prices
- Kitchen extensions · from £25,500
- Single-storey rear extensions · from £19,500
- Annexe extensions · from £52,000
- Extension plans and drawings · from £1,100
- Utility and boot room extensions · from £13,000
- Orangery extensions · from £28,500
- Flat roof extensions · from £19,500
- Building regulations for extensions · from £850
- Double-storey extensions · from £36,000
- Pitched roof extensions · from £21,000
- Conservatory replacement extensions · from £19,000
- Extensions over a garage · from £22,500
- Planning permission for extensions · from £300
- Glass box extensions · from £28,500
- Porch extensions · from £3,800
- Bedroom extensions · from £24,500
- Home office extensions · from £15,000
- Bungalow extensions · from £24,500
- Wraparound extensions · from £34,000
- Timber frame extensions · from £19,500
- Side return extensions · from £17,000
- Side extensions · from £20,500
Free site visit
We visit your Swinton home, measure up, talk through what you want and check the planning position.
Design and approvals
We draw the design, agree it with you and handle planning or permitted development checks and building regulations.
Fixed written price
The price is fixed in writing once the design is settled, with a clear programme and payment stages.
Build and sign-off
The build is managed from start to finish, inspected at each stage and signed off on completion.
Questions about extensions in Swinton
How much does an extension cost in Swinton?
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 cover all of Swinton?
Yes, including the surrounding parts of Greater Manchester. Site visits are free and there is no obligation.
Do I need planning permission for an extension in Swinton?
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.
Will my neighbours need to be told?
If you apply for planning or prior approval the council notifies them, and in England party wall notices may be needed for work near a shared boundary.
Book a free site visit in Swinton
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.