Chorley, Lancashire
Bungalow rear extension in Chorley
Single-storey rear extensions that keep everything on one level. If you live in Chorley and want to know what a bungalow rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
Chorley sits in Lancashire, with postcode districts including PR6 and PR7. For Chorley bungalows we design the roof first, because the low eaves decide the height of the new room.
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 bungalow rear extension cost in Chorley?
Guide prices for a bungalow rear extension in Chorley start from our North West England rate of £1,740–£2,820 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) | £21,000–£34,000 |
| 4 m wide × 6 m deep (24 m²) | £41,500–£67,500 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a bungalow rear extension in Chorley?
Planning for a bungalow rear extension in Chorley follows the English householder rules.
English permitted development (Class A) allows a single-storey rear extension of 3 metres on a terraced or semi-detached house and 4 metres on a detached one, measured from the original house, with a maximum height of 4 metres and eaves of no more than 3 metres within 2 metres of a boundary.
If 3 or 4 metres is not enough, England's prior approval route allows 6 metres on a terraced or semi-detached house and 8 metres on a detached house for a single-storey rear extension. Neighbours are consulted, the council decides within 42 days, and the fee is £249, rising to £310 from 8 December 2026.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.
What are homes in Chorley like to extend?
Stone and brick terraces are common around Chorley. Where houses back onto a ginnel or alley, deliveries can come in from the rear, which makes the build tidier.
How a bungalow rear extension in Chorley 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.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the building control completion certificate.
Bungalow rear extensions near Chorley
We also build rear extensions for bungalows in nearby Clayton-le-Woods (3.9 miles) and Horwich (4.3 miles).
- Bungalow rear extension in Clayton-le-Woods
- Bungalow rear extension in Horwich
- Bungalow rear extension in Leyland
- Bungalow rear extension in Darwen
- Bungalow rear extension in Wigan
Other work in Chorley:
FAQ
Bungalow rear extension questions in Chorley
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.
How much does a bungalow rear extension cost in Chorley?
As a guide, £1,740–£2,820 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £21,000–£34,000 at that rate. Your written price follows the survey.
Can I extend the loft as well?
Sometimes, but that is a different project; a rear extension keeps everything on one level.
Is the site visit in Chorley free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Who will build my extension?
Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.
Can you match the brick or stone on my Chorley house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.