Broadstone, Dorset
Bungalow rear extension in Broadstone
Bungalow rear extension in Broadstone: single-storey rear extensions that keep everything on one level. We measure the house, show you what the rules allow, price it in writing and build it.
Broadstone sits in Dorset, with postcode districts including BH15, BH17 and BH18. 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 Broadstone?
A bungalow rear extension in Broadstone is priced at £1,920–£3,120 per square metre including VAT as a guide, before kitchen fit-out and fees. 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 |
Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission for a bungalow rear extension in Broadstone?
Here is how the rules in England apply to a bungalow rear extension in Broadstone.
Under England's householder permitted development rules you can usually add 3 metres at the back of an attached house, or 4 metres on a detached house, without a planning application, as long as the extension stays under 4 metres high and its eaves stay under 3 metres where it is 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. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.
What are homes in Broadstone like to extend?
Stone-built and rendered houses are common around Broadstone, 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 Broadstone 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.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
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 Broadstone
Neighbouring places we cover include Canford Heath (1.2 miles) and Wimborne Minster (1.9 miles).
- Bungalow rear extension in Canford Heath
- Bungalow rear extension in Wimborne Minster
- Bungalow rear extension in Poole
- Bungalow rear extension in Ferndown
- Bungalow rear extension in Bournemouth
Other work in Broadstone:
FAQ
Bungalow rear extension questions in Broadstone
How long does a rear extension take to build in Broadstone?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
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.
Will the roof look odd?
Not if the pitch and tiles match. Where the eaves are low, a flat-roofed section with a lantern is an alternative.
Is the site visit in Broadstone free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
How much does a bungalow rear extension cost in Broadstone?
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.
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.