New Mills, Derbyshire
Bungalow rear extension in New Mills
Single-storey rear extensions that keep everything on one level. We design, get the approvals for and build rear extensions for bungalows in New Mills and the surrounding area, with one contract from the first survey to building control sign-off.
New Mills sits in Derbyshire, with postcode districts including SK22. 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 New Mills?
In New Mills, 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 |
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 bungalow rear extension in New Mills?
Planning for a bungalow rear extension in New Mills 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. 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 New Mills like to extend?
Red-brick terraces and semis are typical of New Mills. 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 New Mills comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
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.
Bungalow rear extensions near New Mills
We also build rear extensions for bungalows in nearby Marple (3.3 miles) and Poynton (4.9 miles).
- Bungalow rear extension in Marple
- Bungalow rear extension in Poynton
- Bungalow rear extension in Hazel Grove
- Bungalow rear extension in Glossop
- Bungalow rear extension in Bredbury
Other work in New Mills:
FAQ
Bungalow rear extension questions in New Mills
How long does a rear extension take to build in New Mills?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Is the site visit in New Mills free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Is a bungalow extension cheaper?
The rates are similar per square metre; roof work can add a little.
Do you handle building control in New Mills?
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.
Do I need planning permission for a rear extension in New Mills?
Often not for a single-storey rear extension of up to 3 metres (4 metres on a detached house) under permitted development, or up to 6 or 8 metres with prior approval, unless the house is in a conservation area or its rights have been removed.