Skelmersdale, Lancashire
Single-storey rear extension in Skelmersdale
For homes in Skelmersdale, a single-storey rear extension is often the simplest way to gain space without moving. Ground-floor space across the back of the house, usually for a kitchen, dining or family room. We take it from survey to completion certificate.
Skelmersdale and its postcode districts WN8 are part of our Lancashire coverage. A depth of 3 to 4 metres keeps many single-storey rear extensions in Skelmersdale within permitted development, subject to the house's planning history.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
How much does a single-storey rear extension cost in Skelmersdale?
Guide prices for a single-storey rear extension in Skelmersdale 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 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a single-storey rear extension in Skelmersdale?
The planning route for a single-storey rear extension in Skelmersdale is set by England's householder rules and your council.
Under England's householder permitted development rules you can usually add 3 metres at the back of an attached house, or 4 metres on a detached house, without a planning application, as long as the extension stays under 4 metres high and its eaves stay under 3 metres where it is within 2 metres of a boundary.
England also has the larger home extension route: a single-storey rear extension of up to 6 metres on an attached house or 8 metres on a detached house, after prior approval from the council. The council notifies your neighbours and has 42 days to decide; the fee is £249 (£310 for applications made from 8 December 2026). The route is not available on designated land such as conservation areas.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. At the first visit we measure what is there now and tell you which route fits: permitted development, prior approval or a planning application.
What are homes in Skelmersdale like to extend?
Skelmersdale has long runs of terraced houses with back yards and alleys, plus 1930s semis further out. Yard extensions on terraces are often single-storey and close to both boundaries.
How a single-storey rear extension in Skelmersdale comes together
Free site visit
We measure the house and garden, look at the back wall, drainage and boundaries, and talk through what you want from the space.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Single-storey rear extensions near Skelmersdale
We also build single-storey rear extensions in nearby Ormskirk (4.6 miles) and Wigan (5.6 miles).
- Single-storey rear extension in Ormskirk
- Single-storey rear extension in Wigan
- Single-storey rear extension in Ince-in-Makerfield
- Single-storey rear extension in Kirkby
- Single-storey rear extension in Ashton in Makerfield
Other work in Skelmersdale:
FAQ
Single-storey rear extension questions in Skelmersdale
Will I need a structural engineer?
Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.
Can you match the brick or stone on my Skelmersdale house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Is a flat roof or a pitched roof better?
A warm flat roof keeps the extension low under first-floor windows and suits a roof lantern; a pitched or lean-to roof gives a vaulted ceiling. Both last for decades when built properly.
How much does a single-storey rear extension cost in Skelmersdale?
As a guide, £1,790–£2,910 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £21,500–£35,000 at that rate. Your written price follows the survey.
Is the site visit in Skelmersdale free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Do you handle building control in Skelmersdale?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.