Skelmersdale house extensions
Every type of house extension in Skelmersdale, from single-storey kitchen extensions to two-storey additions, side returns and orangeries. We design, handle the approvals and build.
- Postcode districtsWN8
- Price regionNorth West England (×0.95)
- Planning rulesEngland
- Site visitFree, no obligation
Approvals for an extension in Skelmersdale
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.
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).
What extensions cost in Skelmersdale
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) |
|---|---|---|
| Extensions over a garage | 12 m² | £23,500 – £31,000 |
| Conservatory replacement extensions | 14 m² | £28,500 – £37,000 |
| Kitchen extensions | 20 m² | £39,500 – £50,500 |
| Orangery extensions | 16 m² | £42,500 – £53,500 |
| Single-storey rear extensions | 20 m² | £38,500 – £49,500 |
Choosing the right extension in Skelmersdale
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.
The types we would usually look at first for a home in Skelmersdale are single-storey rear extensions, kitchen extensions and double-storey extensions, depending on the garden and how the house is laid out.
Covering Skelmersdale and nearby
Across WN8, we can visit, measure and advise. The same team covers Ormskirk (5 miles), Chorley (9 miles), Leyland (11 miles), Preston (15 miles), Lytham St Annes (16 miles), all within easy reach. Just over the Greater Manchester border, Wigan is about 6 miles away.
Choose an extension type
- Glass box extensions · from £28,500
- Single-storey rear extensions · from £19,500
- Double-storey extensions · from £36,000
- Timber frame extensions · from £19,500
- Orangery extensions · from £28,500
- Porch extensions · from £3,800
- Flat roof extensions · from £19,500
- Building regulations for extensions · from £850
- Wraparound extensions · from £34,000
- Bedroom extensions · from £24,500
- Extensions over a garage · from £22,500
- Extension plans and drawings · from £1,100
- Planning permission for extensions · from £300
- Annexe extensions · from £52,000
- Home office extensions · from £15,000
- Bungalow extensions · from £24,500
- Conservatory replacement extensions · from £19,000
- Side extensions · from £20,500
- Pitched roof extensions · from £21,000
- Kitchen extensions · from £25,500
- Side return extensions · from £17,000
- Utility and boot room extensions · from £13,000
Free site visit
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
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 Skelmersdale
How much does an extension cost in Skelmersdale?
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.
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.
Do you cover all of Skelmersdale?
Yes, including the surrounding parts of Lancashire. Site visits are free and there is no obligation.
Do I need planning permission for an extension in Skelmersdale?
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.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Skelmersdale, and the guide-price tool gives a range for your own size and finish in about a minute.
Book a free site visit in Skelmersdale
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.