Chesterfield, Derbyshire
Bungalow rear extension in Chesterfield
Single-storey rear extensions that keep everything on one level. We design, get the approvals for and build rear extensions for bungalows in Chesterfield and the surrounding area, with one contract from the first survey to building control sign-off.
Chesterfield is covered from our Derbyshire round, including S40 and S41. For Chesterfield bungalows we design the roof first, because the low eaves decide the height of the new room.
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 Chesterfield?
A bungalow rear extension in Chesterfield is priced at £1,790–£2,910 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 |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £21,500–£35,000 |
| 4 m wide × 6 m deep (24 m²) | £43,000–£70,000 |
We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
Do you need planning permission for a bungalow rear extension in Chesterfield?
Planning for a bungalow rear extension in Chesterfield follows the English householder rules.
English permitted development (Class A) allows a single-storey rear extension of 3 metres on a terraced or semi-detached house and 4 metres on a detached one, measured from the original house, with a maximum height of 4 metres and eaves of no more than 3 metres 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 Chesterfield like to extend?
Chesterfield has plenty of inter-war semis and bungalows, and single-storey rear extensions suit both.
How a bungalow rear extension in Chesterfield 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.
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 Chesterfield
Neighbouring places we cover include Staveley (3.0 miles) and Dronfield (4.3 miles).
- Bungalow rear extension in Staveley
- Bungalow rear extension in Dronfield
- Bungalow rear extension in Bolsover
- Bungalow rear extension in Beighton
- Bungalow rear extension in Nether Edge
Other work in Chesterfield:
FAQ
Bungalow rear extension questions in Chesterfield
How long does a rear extension take to build in Chesterfield?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
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.
Do I need to move out?
Rarely; the opening into the bungalow is made late in the build.
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 Chesterfield?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
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.