Haydock, Merseyside
Kitchen-diner rear extension in Haydock
Kitchen-diner rear extension in Haydock: an open-plan kitchen, dining and family room that opens straight onto the garden. We measure the house, show you what the rules allow, price it in writing and build it.
Haydock is covered from our Merseyside round, including WA9, WA11 and WA12. We usually keep the working kitchen where the old one was and put the dining table in the new space by the doors, which suits most Haydock homes.
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 kitchen-diner rear extension cost in Haydock?
Guide prices for a kitchen-diner rear extension in Haydock 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 |
Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission for a kitchen-diner rear extension in Haydock?
The planning route for a kitchen-diner rear extension in Haydock 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.
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. 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 Haydock like to extend?
Stone and brick terraces are common around Haydock. Where houses back onto a ginnel or alley, deliveries can come in from the rear, which makes the build tidier.
How a kitchen-diner rear extension in Haydock comes together
Survey visit
We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
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.
Kitchen-diner rear extensions near Haydock
We also build kitchen-diner rear extensions in nearby Ashton in Makerfield (1.7 miles) and St Helens (2.4 miles).
- Kitchen-diner rear extension in Ashton in Makerfield
- Kitchen-diner rear extension in St Helens
- Kitchen-diner rear extension in Newton-le-Willows
- Kitchen-diner rear extension in Golborne
- Kitchen-diner rear extension in Abram
Other work in Haydock:
FAQ
Kitchen-diner rear extension questions in Haydock
Do you handle building control in Haydock?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
What postcode areas do you cover around Haydock?
Including WA9, WA11 and WA12, and the surrounding Merseyside area.
Do you fit the kitchen?
Yes, whether you buy it yourself or we supply it. We take the measurements from the built shell, not the drawings.
Can you match the brick or stone on my Haydock house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
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 I live at home while the extension is built?
Usually yes. Most of the work is outside until the back wall is opened near the end, and that stage is screened off.