Bedfordshire house extensions
From a small utility to a two-storey addition, we take on house extensions throughout Bedfordshire, starting with a free visit and a planning check.
- Towns listed6
- Price regionEast of England (×1.06)
- Planning rulesEngland
- Postcode districts18
Towns we cover in Bedfordshire
Towns we cover here include Luton, Bedford, Dunstable, Leighton Buzzard.
Do extensions in Bedfordshire need planning permission?
In England a single-storey rear extension can usually go up to 3 m beyond the original rear wall of a semi-detached or terraced house, or 4 m on a detached house, without a planning application, provided it is no more than 4 m high, keeps eaves to 3 m within 2 m of a boundary and, with other buildings, covers no more than half the land around the original house. The larger home extension prior approval scheme raises those depths to 6 m and 8 m, with neighbours notified and a 42-day decision.
In a conservation area, national park, National Landscape, the Broads or a World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.
Building regulations approval is separate from planning. In England you can use the council's building control team or a registered building control approver; a full plans application gets the drawings checked before work starts, and the inspector signs the work off with a completion certificate.
What works best for Bedfordshire houses?
Across the East of England many houses sit on generous plots, and single-storey and wraparound extensions are a natural fit.
The types we would usually look at first for a home in Bedfordshire are double-storey extensions, bungalow extensions and single-storey rear extensions, depending on the garden and how the house is laid out.
Popular extension prices in Bedfordshire
Use these Bedfordshire guide prices to sense-check a budget; the guide-price tool narrows them to your own size, and the site visit turns them into a written figure.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Wraparound extensions | 25 m² | £60,500 – £77,000 |
| Double-storey extensions | 32 m² | £61,000 – £80,000 |
| Extensions over a garage | 12 m² | £26,500 – £34,500 |
| Single-storey rear extensions | 20 m² | £43,000 – £55,500 |
| Orangery extensions | 16 m² | £47,000 – £59,500 |
| Kitchen extensions | 20 m² | £44,500 – £56,500 |
All extension types we build in Bedfordshire
- Kitchen extensions · from £28,500
- Single-storey rear extensions · from £22,000
- Home office extensions · from £16,500
- Conservatory replacement extensions · from £21,000
- Side return extensions · from £19,000
- Extension plans and drawings · from £1,250
- Annexe extensions · from £58,000
- Double-storey extensions · from £40,000
- Building regulations for extensions · from £950
- Bungalow extensions · from £27,500
- Flat roof extensions · from £22,000
- Porch extensions · from £4,200
- Pitched roof extensions · from £23,500
- Side extensions · from £23,000
- Planning permission for extensions · from £350
- Bedroom extensions · from £27,500
- Extensions over a garage · from £25,000
- Orangery extensions · from £31,500
- Wraparound extensions · from £38,000
- Timber frame extensions · from £22,000
- Utility and boot room extensions · from £14,500
- Glass box extensions · from £31,500
Neighbouring areas
Questions about extensions in Bedfordshire
How much does an extension cost in Bedfordshire?
With our East of England factor (×1.06), a standard-spec 20 m² single-storey extension is a guide £43,000 to £55,500 including VAT. Prices for every type are linked on this page.
Will my neighbours need to be told?
If you apply for planning or prior approval the council notifies them, and in England party wall notices may be needed for work near a shared boundary.
Who do I contract with?
Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.
How long does an extension take in Bedfordshire?
Usually 2 to 4 months of design and approvals, then 10 to 16 weeks on site for a single-storey extension or 16 to 24 weeks for two storeys.
Book a free site visit in Bedfordshire
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.