Sinfin, Derbyshire
Bungalow rear extension in Sinfin
For homes in Sinfin, a bungalow rear extension is often the simplest way to gain space without moving. Single-storey rear extensions that keep everything on one level. We take it from survey to completion certificate.
We cover Sinfin (DE1, DE23 and DE24) as part of our Derbyshire work. For bungalows in Derbyshire, a rear extension is the usual way to add space without adding stairs.
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 bungalow rear extension cost in Sinfin?
In Sinfin, our guide for a bungalow rear extension is £1,790–£2,910 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 |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £21,500–£35,000 |
| 4 m wide × 6 m deep (24 m²) | £43,000–£70,000 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a bungalow rear extension in Sinfin?
Whether your bungalow rear extension in Sinfin needs a planning application depends on its size, your house and any local restrictions.
In England a single-storey rear extension can often be built under permitted development: up to 3 metres beyond the original rear wall of an attached house, or 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres if any part is within 2 metres of a boundary.
England also has the larger home extension route: a single-storey rear extension of up to 6 metres on an attached house or 8 metres on a detached house, after prior approval from the council. The council notifies your neighbours and has 42 days to decide; the fee is £249 (£310 for applications made from 8 December 2026). The route is not available on designated land such as conservation areas.
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 Sinfin like to extend?
Red-brick terraces and semis are typical of Sinfin. Coal-mining legacy areas in parts of the East Midlands can need a Coal Authority check before foundations are designed.
How a bungalow rear extension in Sinfin 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.
Build and sign-off
We build to the approved drawings with regular updates, then hand over the building control completion certificate and any guarantees from suppliers.
Bungalow rear extensions near Sinfin
Close by, we work in Derby, about 2.9 miles away, and Chaddesden, about 4.0 miles away.
- Bungalow rear extension in Derby
- Bungalow rear extension in Chaddesden
- Bungalow rear extension in Oakwood
- Bungalow rear extension in Swadlincote
- Bungalow rear extension in Burton upon Trent
Other work in Sinfin:
FAQ
Bungalow rear extension questions in Sinfin
Do you handle building control in Sinfin?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Is the site visit in Sinfin free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Can a bungalow extension be fully accessible?
Yes: level thresholds, wider doors and a wet room are straightforward to design in.
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.
Will I need a structural engineer?
Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.
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.