Belper, Derbyshire
Side return extension in Belper
Infilling the narrow passage beside a Victorian or Edwardian back addition. We design, get the approvals for and build side return extensions in Belper and the surrounding area, with one contract from the first survey to building control sign-off.
Belper and its postcode districts DE56 are part of our Derbyshire coverage. Side returns suit the Victorian and Edwardian terraces found across parts of Derbyshire, 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 Belper?
A side return extension in Belper is priced at £2,230–£3,690 per square metre including VAT as a guide, before kitchen fit-out and fees. 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 Belper?
Whether your side return extension in Belper needs a planning application depends on its size, your house and any local restrictions.
Side return infills and the side leg of a wraparound are treated as side extensions in England: single-storey, no more than 4 metres high and no wider than half the original house. They are not permitted development in conservation areas, National Parks or National Landscapes, and a joined wraparound often needs a planning application because the side and rear rules apply together.
The Party Wall etc. Act 1996 applies in England: you serve notice two months before work to a shared wall, and one month before digging foundations within 3 metres (or 6 metres for deeper foundations) of a neighbour's building. Neighbours can agree in writing; if they dissent, surveyors agree an award.
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 Belper like to extend?
Red-brick terraces and semis are typical of Belper. 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 Belper 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.
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.
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.
Side return extensions near Belper
From Belper, the nearest places we also cover are Ripley (3.4 miles) and Heanor (5.3 miles).
- Side return extension in Ripley
- Side return extension in Heanor
- Side return extension in Oakwood
- Side return extension in Alfreton
- Side return extension in Chaddesden
Other work in Belper:
FAQ
Side return extension questions in Belper
How much does a side return extension cost in Belper?
As a guide, £2,230–£3,690 per square metre including VAT for a standard specification. For example, 2 m wide × 6 m deep (12 m²): about £27,000–£44,000 at that rate. Your written price follows the survey.
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.
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.
What postcode areas do you cover around Belper?
Including DE56, and the surrounding Derbyshire area.
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 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.