Beaconsfield, Buckinghamshire
Bungalow rear extension in Beaconsfield
Thinking about a bungalow rear extension in Beaconsfield? Single-storey rear extensions that keep everything on one level. Our team handles the drawings, the planning route and the build, and your contract is with one company throughout.
Beaconsfield and its postcode districts HP9 are part of our Buckinghamshire coverage. For bungalows in Buckinghamshire, 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 Beaconsfield?
A bungalow rear extension in Beaconsfield is priced at £2,070–£3,360 per square metre including VAT as a guide, before kitchen fit-out and fees. South East prices run above our West Midlands baseline, mainly on labour rates and clay-soil foundations.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £25,000–£40,500 |
| 4 m wide × 6 m deep (24 m²) | £49,500–£80,500 |
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 Beaconsfield?
Planning for a bungalow rear extension in Beaconsfield follows the English householder rules.
In England a single-storey rear extension can often be built under permitted development: up to 3 metres beyond the original rear wall of an attached house, or 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres if any part 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 Beaconsfield like to extend?
Around Beaconsfield the housing ranges from inter-war semis to 1960s and 1970s estates with good-sized gardens. Many of the newer estates had permitted development rights removed by condition, so we check the planning history before anything is drawn.
How a bungalow rear extension in Beaconsfield 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.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
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 Beaconsfield
We also build rear extensions for bungalows in nearby Chalfont St Peter (3.9 miles) and Amersham (4.0 miles).
- Bungalow rear extension in Chalfont St Peter
- Bungalow rear extension in Amersham
- Bungalow rear extension in Gerrards Cross
- Bungalow rear extension in High Wycombe
- Bungalow rear extension in Amersham on the Hill
Other work in Beaconsfield:
FAQ
Bungalow rear extension questions in Beaconsfield
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 I need planning permission for a rear extension in Beaconsfield?
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.
How deep can I extend?
The same limits as a house: 3 or 4 metres in England, more with prior approval.
What postcode areas do you cover around Beaconsfield?
Including HP9, and the surrounding Buckinghamshire area.
Is the site visit in Beaconsfield free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Can you match the brick or stone on my Beaconsfield house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.