Blandford Forum, Dorset
Bungalow rear extension in Blandford Forum
Single-storey rear extensions that keep everything on one level. We design, get the approvals for and build rear extensions for bungalows in Blandford Forum and the surrounding area, with one contract from the first survey to building control sign-off.
Blandford Forum sits in Dorset, with postcode districts including DT11. For bungalows in Dorset, 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 Blandford Forum?
In Blandford Forum, our guide for a bungalow rear extension is £1,920–£3,120 per square metre including VAT for a standard specification. South West prices run slightly above our West Midlands baseline; natural stone to match the house is the main variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £23,000–£37,500 |
| 4 m wide × 6 m deep (24 m²) | £46,000–£75,000 |
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 Blandford Forum?
Here is how the rules in England apply to a bungalow rear extension in Blandford Forum.
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 Blandford Forum like to extend?
Stone-built and rendered houses are common around Blandford Forum, so matching the walling is a design decision in its own right: natural stone, reconstituted stone or a render finish across old and new.
How a bungalow rear extension in Blandford Forum 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.
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.
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.
Bungalow rear extensions near Blandford Forum
From Blandford Forum, the nearest places we also cover are Wimborne Minster (9.4 miles) and Broadstone (10.2 miles).
- Bungalow rear extension in Wimborne Minster
- Bungalow rear extension in Broadstone
- Bungalow rear extension in Canford Heath
- Bungalow rear extension in Ferndown
- Bungalow rear extension in Poole
Other work in Blandford Forum:
FAQ
Bungalow rear extension questions in Blandford Forum
Do you handle building control in Blandford Forum?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
How much does a bungalow rear extension cost in Blandford Forum?
As a guide, £1,920–£3,120 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £23,000–£37,500 at that rate. Your written price follows the survey.
Do I need to move out?
Rarely; the opening into the bungalow is made late in the build.
Can you match the brick or stone on my Blandford Forum house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
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 Blandford Forum?
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.