Buckingham, Buckinghamshire
Bungalow rear extension in Buckingham
We plan and build rear extensions for bungalows for homeowners in Buckingham. Single-storey rear extensions that keep everything on one level. Start with a free site visit, then a written price once the design is agreed.
Buckingham and its postcode districts MK18 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 Buckingham?
For Buckingham we work from the South East England rate: £2,070–£3,360 per square metre of new floor, including VAT, standard specification. 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 Buckingham?
Whether your bungalow rear extension in Buckingham needs a planning application depends on its size, your house and any local restrictions.
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.
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 Buckingham like to extend?
Around Buckingham 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 Buckingham 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.
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 Buckingham
We also build rear extensions for bungalows in nearby Brackley (7.3 miles) and Bicester (9.9 miles).
- Bungalow rear extension in Brackley
- Bungalow rear extension in Bicester
- Bungalow rear extension in Milton Keynes
- Bungalow rear extension in Bletchley
- Bungalow rear extension in Newport Pagnell
Other work in Buckingham:
FAQ
Bungalow rear extension questions in Buckingham
How long does a rear extension take to build in Buckingham?
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 Buckingham free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Can a bungalow extension be fully accessible?
Yes: level thresholds, wider doors and a wet room are straightforward to design in.
How much does a bungalow rear extension cost in Buckingham?
As a guide, £2,070–£3,360 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £25,000–£40,500 at that rate. Your written price follows the survey.
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.
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.