Haydock, Merseyside
Bungalow rear extension in Haydock
Single-storey rear extensions that keep everything on one level. If you live in Haydock 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.
Haydock is covered from our Merseyside round, including WA9, WA11 and WA12. For bungalows in Merseyside, a rear extension is the usual way to add space without adding stairs.
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 Haydock?
Guide prices for a bungalow rear extension in Haydock 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 Haydock?
Planning for a bungalow rear extension in Haydock 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. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Haydock like to extend?
Haydock 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 bungalow 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.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
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.
Bungalow rear extensions near Haydock
From Haydock, the nearest places we also cover are Ashton in Makerfield (1.7 miles) and St Helens (2.4 miles).
- Bungalow rear extension in Ashton in Makerfield
- Bungalow rear extension in St Helens
- Bungalow rear extension in Newton-le-Willows
- Bungalow rear extension in Golborne
- Bungalow rear extension in Abram
Other work in Haydock:
FAQ
Bungalow rear extension questions in Haydock
How long does a rear extension take to build in Haydock?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
How much does a bungalow rear extension cost in Haydock?
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.
How deep can I extend?
The same limits as a house: 3 or 4 metres in England, more with prior approval.
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.
Do I need a party wall agreement?
In England, usually yes if the extension is on or near a shared boundary or the foundations are close to a neighbour's building. We serve the notices.
Is the site visit in Haydock free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.