Northwich, Cheshire
Bungalow rear extension in Northwich
Single-storey rear extensions that keep everything on one level. We design, get the approvals for and build rear extensions for bungalows in Northwich and the surrounding area, with one contract from the first survey to building control sign-off.
Northwich is covered from our Cheshire round, including CW9. For Northwich 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 Northwich?
Guide prices for a bungalow rear extension in Northwich 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 Northwich?
Here is how the rules in England apply to a bungalow rear extension in Northwich.
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.
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 Northwich like to extend?
Stone and brick terraces are common around Northwich. 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 Northwich 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 Northwich
We also build rear extensions for bungalows in nearby Winsford (4.7 miles) and Middlewich (5.5 miles).
- Bungalow rear extension in Winsford
- Bungalow rear extension in Middlewich
- Bungalow rear extension in Knutsford
- Bungalow rear extension in Lymm
- Bungalow rear extension in Warrington
Other work in Northwich:
FAQ
Bungalow rear extension questions in Northwich
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.
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.
Can a bungalow extension be fully accessible?
Yes: level thresholds, wider doors and a wet room are straightforward to design in.
How long does a rear extension take to build in Northwich?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Can you match the brick or stone on my Northwich house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Can I get a price without a visit?
Our online guide-price tool gives a range in a couple of minutes. A written price needs a survey.