Farnworth, Greater Manchester
Kitchen-diner rear extension in Farnworth
We plan and build kitchen-diner rear extensions for homeowners in Farnworth. An open-plan kitchen, dining and family room that opens straight onto the garden. Start with a free site visit, then a written price once the design is agreed.
We cover Farnworth (BL2, BL3 and BL4) as part of our Greater Manchester work. A kitchen-diner is often the reason people in Farnworth extend: the back kitchen in stone and brick terraces is rarely big enough for a table.
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 Farnworth?
A kitchen-diner rear extension in Farnworth is priced at £1,790–£2,910 per square metre including VAT as a guide, before kitchen fit-out and fees. 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 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a kitchen-diner rear extension in Farnworth?
The planning route for a kitchen-diner rear extension in Farnworth is set by England's householder rules and your council.
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 Farnworth like to extend?
Stone and brick terraces are common around Farnworth. 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 Farnworth 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.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
Build and sign-off
We build to the approved drawings with regular updates, then hand over the building control completion certificate and any guarantees from suppliers.
Kitchen-diner rear extensions near Farnworth
We also build kitchen-diner rear extensions in nearby Little Lever (1.3 miles) and Kearsley (1.3 miles).
- Kitchen-diner rear extension in Little Lever
- Kitchen-diner rear extension in Kearsley
- Kitchen-diner rear extension in Little Hulton
- Kitchen-diner rear extension in Walkden
- Kitchen-diner rear extension in Bolton
Other work in Farnworth:
FAQ
Kitchen-diner rear extension questions in Farnworth
What postcode areas do you cover around Farnworth?
Including BL2, BL3 and BL4, and the surrounding Greater Manchester area.
How much does a kitchen-diner rear extension cost in Farnworth?
As a guide, £1,790–£2,910 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £21,500–£35,000 at that rate. Your written price follows the survey.
Should the sink face the garden?
If the plan allows, an island sink or hob facing the glass is a common choice. It needs a floor-level drain run, which is easy to lay in a new slab.
How long does a rear extension take to build in Farnworth?
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 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.
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.