Kettering, Northamptonshire
Side return extension in Kettering
For homes in Kettering, a side return extension is often the simplest way to gain space without moving. Infilling the narrow passage beside a Victorian or Edwardian back addition. We take it from survey to completion certificate.
Kettering sits in Northamptonshire, with postcode districts including NN15 and NN16. Side return projects in Kettering usually start with a drainage survey of the side passage.
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 Kettering?
In Kettering, our guide for a side return extension is £2,230–£3,690 per square metre including VAT for a standard specification. East Midlands prices sit a little below our West Midlands baseline.
| Size | Guide price inc VAT |
|---|---|
| 2 m wide × 6 m deep (12 m²) | £27,000–£44,000 |
| 2.5 m wide × 7 m deep (17.5 m²) | £39,000–£64,500 |
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 Kettering?
Planning for a side return extension in Kettering follows the English householder rules.
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. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Kettering like to extend?
Red-brick terraces and semis are typical of Kettering. Coal-mining legacy areas in parts of the East Midlands can need a Coal Authority check before foundations are designed.
How a side return extension in Kettering 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.
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 Kettering
From Kettering, the nearest places we also cover are Desborough (5.0 miles) and Wellingborough (6.7 miles).
- Side return extension in Desborough
- Side return extension in Wellingborough
- Side return extension in Corby
- Side return extension in Rushden
- Side return extension in Market Harborough
Other work in Kettering:
FAQ
Side return extension questions in Kettering
Is the site visit in Kettering free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Can you match the brick or stone on my Kettering house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Do I need my neighbour's permission?
Not their permission, but in England and Wales you must serve party wall notices, and a neighbour can consent in writing or ask for a surveyor's award.
Do you handle building control in Kettering?
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.
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.