Mildenhall, Suffolk
Bungalow rear extension in Mildenhall
Single-storey rear extensions that keep everything on one level. If you live in Mildenhall and want to know what a bungalow rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
Mildenhall sits in Suffolk, with postcode districts including IP28. For bungalows in Suffolk, 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 Mildenhall?
For Mildenhall we work from the East of England rate: £1,960–£3,180 per square metre of new floor, including VAT, standard specification. East of England prices run slightly above our West Midlands baseline; clay soils near trees are the main foundation variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £23,500–£38,000 |
| 4 m wide × 6 m deep (24 m²) | £47,000–£76,500 |
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 Mildenhall?
The planning route for a bungalow rear extension in Mildenhall is set by England's householder rules and your council.
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.
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 Mildenhall like to extend?
Post-war semis and newer estates are typical of Mildenhall, and many have room for a full-width extension. Shrinkable clay is common in the East of England, so foundations near trees and hedges are designed to NHBC-style depth guidance.
How a bungalow rear extension in Mildenhall 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.
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 Mildenhall
Close by, we work in Newmarket, about 8.2 miles away, and Bury St Edmunds, about 10.8 miles away.
- Bungalow rear extension in Newmarket
- Bungalow rear extension in Bury St Edmunds
- Bungalow rear extension in Ely
- Bungalow rear extension in Thetford
- Bungalow rear extension in Haverhill
Other work in Mildenhall:
FAQ
Bungalow rear extension questions in Mildenhall
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.
What postcode areas do you cover around Mildenhall?
Including IP28, and the surrounding Suffolk area.
Is a bungalow extension cheaper?
The rates are similar per square metre; roof work can add a little.
Is the site visit in Mildenhall free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
How long does a rear extension take to build in Mildenhall?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
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.