Bedfordshire
Rear extension plans and planning applications in Bedfordshire
Measured survey, design options, planning drawings and the application, handled for you. We design and build rear extensions across Bedfordshire, from Luton and Bedford to Dunstable, covering single-storey kitchen extensions, two-storey additions, side returns and wraparounds.
Rear extension applications in Bedfordshire are householder applications, which councils aim to decide within about eight weeks. Post-war semis and newer estates are typical of Bedfordshire, 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.
What does it cost in Bedfordshire?
As a guide, £1,000–£2,500 including VAT. Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission in Bedfordshire?
England's rules allow a rear extension of more than one storey without an application only when it is no deeper than 3 metres and at least 7 metres from the boundary opposite the rear wall, and never on designated land. Most two-storey schemes need householder planning permission.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent.
A householder planning application in England costs £548 (£575 for applications made from 8 December 2026), and a lawful development certificate for proposed work costs half the householder fee.
Councils aim to decide householder applications within 8 weeks of validation, and prior approval within 42 days.
Where in Bedfordshire do we work?
FAQ
Questions people ask
Do I need an architect?
You need accurate drawings by someone who knows householder planning; we provide them.
Can I see the design in 3D?
Yes; we produce simple 3D views so you can judge the size and light.
What if planning is refused?
We review the reasons with you, amend and resubmit (often free of a second fee within 12 months in England) or appeal.
Do you cover all of Bedfordshire?
We cover 11 towns and districts in Bedfordshire, including Luton, Bedford and Dunstable.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.