House extensions in Wigan
More space without moving: we plan and build extensions across Wigan, with one team for the drawings, the council and the build.
- Postcode districtsWN1, WN2, WN3, WN4, WN5, WN6
- Price regionNorth West England (×0.95)
- Planning rulesEngland
- Site visitFree, no obligation
Do extensions in Wigan need planning permission?
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.
If the work involves a shared wall, building on the boundary, or digging foundations within 3 m (sometimes 6 m) of a neighbour's building, the Party Wall etc. Act 1996 applies and notice must be served before work starts: two months for work to a party wall, one month for new walls on the boundary and for excavations.
Applications are decided by the local planning authority (your district, borough or unitary council).
Areas we cover around Wigan
Across WN1, WN2, WN3, WN4, WN5, WN6, we can visit, measure and advise. Nearby, we also take on projects in Hindley (2 miles), Ashton-in-Makerfield (4 miles), Westhoughton (5 miles), Horwich (5 miles), Leigh (6 miles). Golborne, in Merseyside, is roughly 5 miles from Wigan and also on our list.
Choosing the right extension in Wigan
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.
Depending on the plot, side return extensions and kitchen extensions are often the strongest options, with single-storey rear extensions worth considering where there is room.
Guide prices for Wigan
Prices on this page use our North West England factor of ×0.95, include VAT at 20% and cover the build; your written price follows a survey and agreed drawings.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Side return extensions | 11 m² | £25,000 – £31,500 |
| Wraparound extensions | 25 m² | £54,500 – £69,000 |
| Double-storey extensions | 32 m² | £54,500 – £71,500 |
| Kitchen extensions | 20 m² | £39,500 – £50,500 |
| Single-storey rear extensions | 20 m² | £38,500 – £49,500 |
| Orangery extensions | 16 m² | £42,500 – £53,500 |
| Conservatory replacement extensions | 14 m² | £28,500 – £37,000 |
Every extension type in Wigan
- Side extensions · from £20,500
- Utility and boot room extensions · from £13,000
- Flat roof extensions · from £19,500
- Bungalow extensions · from £24,500
- Kitchen extensions · from £25,500
- Annexe extensions · from £52,000
- Wraparound extensions · from £34,000
- Glass box extensions · from £28,500
- Conservatory replacement extensions · from £19,000
- Orangery extensions · from £28,500
- Pitched roof extensions · from £21,000
- Bedroom extensions · from £24,500
- Building regulations for extensions · from £850
- Side return extensions · from £17,000
- Timber frame extensions · from £19,500
- Porch extensions · from £3,800
- Home office extensions · from £15,000
- Extension plans and drawings · from £1,100
- Double-storey extensions · from £36,000
- Single-storey rear extensions · from £19,500
- Planning permission for extensions · from £300
- Extensions over a garage · from £22,500
Free site visit
A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.
Design and approvals
We produce the drawings and structural design, and manage the approvals so they are in place before work starts.
Fixed written price
With the design and specification agreed, you get a fixed written price and a start date.
Build and sign-off
Work is carried out to the agreed programme, inspected by building control and signed off at the end.
Questions about extensions in Wigan
How much does an extension cost in Wigan?
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.
How long does an extension take in Wigan?
Usually 2 to 4 months of design and approvals, then 10 to 16 weeks on site for a single-storey extension or 16 to 24 weeks for two storeys.
Do I need planning permission for an extension in Wigan?
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.
Do you cover all of Wigan?
Yes, including the surrounding parts of Greater Manchester. Site visits are free and there is no obligation.
Book a free site visit in Wigan
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.