Newmarket, Suffolk
Side return extension in Newmarket
Side return extension in Newmarket: infilling the narrow passage beside a Victorian or Edwardian back addition. We measure the house, show you what the rules allow, price it in writing and build it.
We cover Newmarket (CB8) as part of our Suffolk work. Side returns suit the Victorian and Edwardian terraces found across parts of Suffolk, where the kitchen sits in a narrow back addition.
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 side return extension cost in Newmarket?
Guide prices for a side return extension in Newmarket start from our East of England rate of £2,440–£4,030 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 |
|---|---|
| 2 m wide × 6 m deep (12 m²) | £29,500–£48,500 |
| 2.5 m wide × 7 m deep (17.5 m²) | £42,500–£70,500 |
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 side return extension in Newmarket?
The planning route for a side return extension in Newmarket is set by England's householder rules and your council.
In England the side part of a side return or wraparound must meet the side-extension rules (one storey, under 4 metres high, no more than half the width of the original house), and those rights do not apply on designated land. Because a wraparound combines a side and a rear extension, many need householder planning permission.
Because rear extensions often sit on or near the boundary, the Party Wall etc. Act 1996 usually applies in England. Notices go out one or two months before work depending on the type of work, and a surveyor's award is only needed if a neighbour does not consent.
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 Newmarket like to extend?
Post-war semis and newer estates are typical of Newmarket, 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 side return extension in Newmarket 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.
Approvals
Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Side return extensions near Newmarket
From Newmarket, the nearest places we also cover are Mildenhall (8.2 miles) and Haverhill (11.3 miles).
- Side return extension in Mildenhall
- Side return extension in Haverhill
- Side return extension in Ely
- Side return extension in Cambridge
- Side return extension in Bury St Edmunds
Other work in Newmarket:
FAQ
Side return extension questions in Newmarket
What postcode areas do you cover around Newmarket?
Including CB8, and the surrounding Suffolk area.
How long does a rear extension take to build in Newmarket?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Glass roof or solid roof with rooflights?
A glass roof gives the most light; a solid roof with long rooflights is warmer and quieter in rain. Both work.
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.
Do you handle building control in Newmarket?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
How much does a side return extension cost in Newmarket?
As a guide, £2,440–£4,030 per square metre including VAT for a standard specification. For example, 2 m wide × 6 m deep (12 m²): about £29,500–£48,500 at that rate. Your written price follows the survey.