St Neots, Cambridgeshire
Kitchen-diner rear extension in St Neots
We plan and build kitchen-diner rear extensions for homeowners in St Neots. 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.
St Neots sits in Cambridgeshire, with postcode districts including PE19. We usually keep the working kitchen where the old one was and put the dining table in the new space by the doors, which suits most St Neots homes.
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 St Neots?
Guide prices for a kitchen-diner rear extension in St Neots start from our East of England rate of £2,010–£3,290 per square metre, including VAT. East of England prices run slightly above our West Midlands baseline; clay soils near trees are the main foundation variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £24,000–£39,500 |
| 4 m wide × 5 m deep (20 m²) | £40,500–£65,500 |
| 4 m wide × 6 m deep (24 m²) | £48,500–£79,000 |
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 St Neots?
The planning route for a kitchen-diner rear extension in St Neots is set by England's householder rules and your council.
Under England's householder permitted development rules you can usually add 3 metres at the back of an attached house, or 4 metres on a detached house, without a planning application, as long as the extension stays under 4 metres high and its eaves stay under 3 metres where it is 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. 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 St Neots like to extend?
Post-war semis and newer estates are typical of St Neots, and many have room for a full-width extension. Shrinkable clay is common in the East of England, so foundations near trees and hedges are designed to NHBC-style depth guidance. For St Neots kitchens we plan the extraction route and the island drainage before the slab is poured, so nothing has to be chased in later.
How a kitchen-diner rear extension in St Neots comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
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 St Neots
Neighbouring places we cover include Sandy (6.1 miles) and Huntingdon (8.6 miles).
- Kitchen-diner rear extension in Sandy
- Kitchen-diner rear extension in Huntingdon
- Kitchen-diner rear extension in Biggleswade
- Kitchen-diner rear extension in Bedford
- Kitchen-diner rear extension in St Ives
Other work in St Neots:
FAQ
Kitchen-diner rear extension questions in St Neots
Do you handle building control in St Neots?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
What postcode areas do you cover around St Neots?
Including PE19, and the surrounding Cambridgeshire area.
Where does the cooker extraction go?
Through the new wall or roof, ducted to outside. Recirculating hoods are possible but less effective.
Is the site visit in St Neots free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
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 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.