Scunthorpe, Lincolnshire
Single-storey rear extension in Scunthorpe
Ground-floor space across the back of the house, usually for a kitchen, dining or family room. If you live in Scunthorpe and want to know what a single-storey rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
Scunthorpe and its postcode districts DN15, DN16 and DN17 are part of our Lincolnshire coverage. On red-brick terraces and semis like those around Scunthorpe, a single-storey rear extension is usually the simplest way to fix a small back kitchen without touching the bedrooms.
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 Scunthorpe?
Guide prices for a single-storey rear extension in Scunthorpe start from our East Midlands rate of £1,840–£3,010 per square metre, including VAT. East Midlands prices sit a little below our West Midlands baseline.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £22,000–£36,000 |
| 4 m wide × 5 m deep (20 m²) | £37,000–£60,000 |
| 4 m wide × 6 m deep (24 m²) | £44,000–£72,000 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a single-storey rear extension in Scunthorpe?
The planning route for a single-storey rear extension in Scunthorpe 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 Scunthorpe like to extend?
Red-brick terraces and semis are typical of Scunthorpe. Coal-mining legacy areas in parts of the East Midlands can need a Coal Authority check before foundations are designed.
How a single-storey rear extension in Scunthorpe 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.
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 Scunthorpe
Close by, we work in Brough, about 10.9 miles away, and Barton upon Humber, about 11.5 miles away.
- Single-storey rear extension in Brough
- Single-storey rear extension in Barton upon Humber
- Single-storey rear extension in Goole
- Single-storey rear extension in Thorne
- Single-storey rear extension in Gainsborough
Other work in Scunthorpe:
FAQ
Single-storey rear extension questions in Scunthorpe
How much does a single-storey rear extension cost in Scunthorpe?
As a guide, £1,840–£3,010 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £22,000–£36,000 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.
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.
What postcode areas do you cover around Scunthorpe?
Including DN15, DN16 and DN17, and the surrounding Lincolnshire area.
Is the site visit in Scunthorpe 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.