Warrington, Cheshire
Kitchen-diner rear extension in Warrington
For homes in Warrington, a kitchen-diner rear extension is often the simplest way to gain space without moving. An open-plan kitchen, dining and family room that opens straight onto the garden. We take it from survey to completion certificate.
Warrington and its postcode districts WA1, WA2, WA4 and WA5 are part of our Cheshire coverage. For Warrington kitchens we plan the extraction route and the island drainage before the slab is poured, so nothing has to be chased in later.
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 Warrington?
Guide prices for a kitchen-diner rear extension in Warrington 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 Warrington?
Whether your kitchen-diner rear extension in Warrington needs a planning application depends on its size, your house and any local restrictions.
In England a single-storey rear extension can often be built under permitted development: up to 3 metres beyond the original rear wall of an attached house, or 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres if any part is 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. 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 Warrington like to extend?
Stone and brick terraces are common around Warrington. 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 Warrington 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.
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 Warrington
We also build kitchen-diner rear extensions in nearby Great Sankey (2.5 miles) and Newton-le-Willows (4.1 miles).
- Kitchen-diner rear extension in Great Sankey
- Kitchen-diner rear extension in Newton-le-Willows
- Kitchen-diner rear extension in Lymm
- Kitchen-diner rear extension in Golborne
- Kitchen-diner rear extension in Haydock
Other work in Warrington:
FAQ
Kitchen-diner rear extension questions in Warrington
What postcode areas do you cover around Warrington?
Including WA1, WA2, WA4 and WA5, and the surrounding Cheshire area.
Is the site visit in Warrington free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
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 much does a kitchen-diner rear extension cost in Warrington?
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.
Do you handle building control in Warrington?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
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.