Bungalow extensions in Northwich
From the first sketch to final sign-off, we plan and build bungalow extensions in Northwich and the surrounding Cheshire area.
- Guide price in NorthwichFrom £24,500 inc VAT
- PlanningSingle storey often permitted development
- Build time10–18 weeks on site
- Postcode districtsCW8, CW9

Is a bungalow extension right for your house?
- Families wanting more space on one floor
- Bungalows on larger plots
- Homeowners planning for later life
Local to Northwich
Postcode districts we cover around Northwich include CW8, CW9. Nearby, we also take on projects in Winsford (5 miles), Warrington (10 miles), Runcorn (10 miles), Widnes (11 miles).
Just over the Greater Manchester border, Altrincham is about 11 miles away. The North West has a high share of Victorian and Edwardian terraces with rear yards and outriggers, plus large areas of inter-war semis in the suburbs.
Planning rules that apply in Northwich
In England a single-storey extension to a bungalow follows the normal permitted development limits (3 m or 4 m, or 6 m and 8 m through prior approval). Adding a first floor always needs planning permission.
In a conservation area, national park, National Landscape, the Broads or a World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.
Building regulations approval is separate from planning. In England you can use the council's building control team or a registered building control approver; a full plans application gets the drawings checked before work starts, and the inspector signs the work off with a completion certificate.
Applications are decided by the local planning authority (your district, borough or unitary council).
What should I budget for a bungalow extension in Northwich?
For Northwich we adjust our national guide rates by ×0.95, the factor we use for North West England. Figures include VAT; your written quote after the survey replaces them.
Typical rates in Northwich: £1,660 to £3,230 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 3 m × 5 m 15 m² | £24,500 – £30,000 | £29,000 – £38,000 | £37,000 – £48,500 |
| 4 m × 6 m 24 m² | £39,500 – £48,000 | £46,500 – £60,500 | £59,000 – £78,000 |
| L-shape 35 m² | £58,000 – £70,000 | £68,000 – £88,500 | £86,000 – £113,500 |
Try the guide-price tool to see a range for your own size and finish.
How the project works
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
Free site visit
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
Design and approvals
Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.
Fixed written price
You receive a written, itemised price and programme. Nothing starts until you are happy with it.
Build and sign-off
The build is managed from start to finish, inspected at each stage and signed off on completion.
Questions people ask about bungalow extensions
Can I see a price before committing to anything?
Yes. The guide prices on this page are adjusted for Northwich, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.
Do you cover all of Northwich?
Yes. We cover Northwich and the surrounding parts of Cheshire. Site visits are free and there is no obligation.
Who do I contract with for a bungalow extension in Northwich?
Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.
Can I extend a bungalow without planning permission?
In England a single-storey rear extension to a bungalow follows the same permitted development limits as a house: 3 m or 4 m, or up to 6 m or 8 m through prior approval. Adding a storey always needs planning permission.
How much does a bungalow extension cost?
Our guide range for single-storey work is about £1,660 to £3,230 per m² including VAT. Going upwards is priced after a structural survey.
Book a free site visit in Northwich
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.