Stowmarket, Suffolk
Single-storey rear extension in Stowmarket
Ground-floor space across the back of the house, usually for a kitchen, dining or family room. We design, get the approvals for and build single-storey rear extensions in Stowmarket and the surrounding area, with one contract from the first survey to building control sign-off.
Stowmarket sits in Suffolk, with postcode districts including IP14. A single-storey rear extension in Stowmarket is mostly built from the garden side, so the house stays usable for most of the job.
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 single-storey rear extension cost in Stowmarket?
Guide prices for a single-storey rear extension in Stowmarket 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 |
We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
Do you need planning permission for a single-storey rear extension in Stowmarket?
The planning route for a single-storey rear extension in Stowmarket 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 Stowmarket like to extend?
Post-war semis and newer estates are typical of Stowmarket, 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.
How a single-storey rear extension in Stowmarket 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.
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.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the building control completion certificate.
Single-storey rear extensions near Stowmarket
Neighbouring places we cover include Ipswich (11.2 miles) and Bury St Edmunds (12.8 miles).
- Single-storey rear extension in Ipswich
- Single-storey rear extension in Bury St Edmunds
- Single-storey rear extension in Kesgrave
- Single-storey rear extension in Diss
- Single-storey rear extension in Woodbridge
Other work in Stowmarket:
FAQ
Single-storey rear extension questions in Stowmarket
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.
Can I live at home while the extension is built?
Usually yes. Most of the work is outside until the back wall is opened near the end, and that stage is screened off.
Does it add value to the house?
Nationwide's October 2025 house price research found that a 10% increase in floor area is linked to about 5% higher value on average. It is a guide, not a promise; local agents can tell you what extended homes on your street sell for.
Is the site visit in Stowmarket free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
What postcode areas do you cover around Stowmarket?
Including IP14, and the surrounding Suffolk area.
Can you match the brick or stone on my Stowmarket house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.