Home extensions in Luton
Looking to extend your home in Luton? Start here: extension types, guide prices for Luton, the planning rules that apply and how a project runs.
- Postcode districtsLU1, LU2, LU3, LU4, LU5, LU6
- Price regionEast of England (×1.06)
- Planning rulesEngland
- Site visitFree, no obligation
Luton extension prices at a glance
Every figure below is a guide for Luton, adjusted for East of England build costs (×1.06) and including VAT. Design and council fees are shown separately on each page.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Conservatory replacement extensions | 14 m² | £31,500 – £41,000 |
| Orangery extensions | 16 m² | £47,000 – £59,500 |
| Kitchen extensions | 20 m² | £44,500 – £56,500 |
| Extensions over a garage | 12 m² | £26,500 – £34,500 |
| Side return extensions | 11 m² | £27,500 – £35,000 |
| Single-storey rear extensions | 20 m² | £43,000 – £55,500 |
| Wraparound extensions | 25 m² | £60,500 – £77,000 |
Covering Luton and nearby
Site visits are available across Luton (LU1, LU2, LU3, LU4, LU5, LU6). Neighbouring towns we cover include Dunstable (5 miles), Leighton Buzzard (11 miles), Ampthill (11 miles), Kempston (17 miles), Bedford (18 miles). Just over the Hertfordshire border, Harpenden is about 5 miles away.
What works best for Luton 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 Luton are double-storey extensions, wraparound extensions and single-storey rear extensions, depending on the garden and how the house is laid out.
Do extensions in Luton 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 England a single-storey side return infill is often permitted development if it stays within the height limits and is no wider than half the width of the original house. Conservation areas, listed buildings and flats always need an application, and the boundary wall usually brings in the Party Wall Act.
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.
Applications are decided by the local planning authority (your district, borough or unitary council).
Choose an extension type
- Extensions over a garage · from £25,000
- Planning permission for extensions · from £350
- Home office extensions · from £16,500
- Conservatory replacement extensions · from £21,000
- Single-storey rear extensions · from £22,000
- Annexe extensions · from £58,000
- Utility and boot room extensions · from £14,500
- Side extensions · from £23,000
- Extension plans and drawings · from £1,250
- Bungalow extensions · from £27,500
- Glass box extensions · from £31,500
- Timber frame extensions · from £22,000
- Wraparound extensions · from £38,000
- Pitched roof extensions · from £23,500
- Porch extensions · from £4,200
- Kitchen extensions · from £28,500
- Flat roof extensions · from £22,000
- Building regulations for extensions · from £950
- Side return extensions · from £19,000
- Double-storey extensions · from £40,000
- Bedroom extensions · from £27,500
- Orangery extensions · from £31,500
Free site visit
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
Design and approvals
Once the layout is agreed, we deal with the council: planning permission or written confirmation that none is needed, plus building control.
Fixed written price
You receive a written, itemised price and programme. Nothing starts until you are happy with it.
Build and sign-off
We build it with one project manager, book the building control inspections and hand over the completion certificate.
Questions about extensions in Luton
How much does an extension cost in Luton?
Using our East of England factor (×1.06), a standard-spec single-storey extension of 20 m² is a guide £43,000 to £55,500 including VAT, and a 32 m² two-storey extension £61,000 to £80,000. Your written price follows the survey.
Do I need planning permission for an extension in Luton?
Not always. It depends on the size, position and your property's history. Many single-storey rear extensions in England are permitted development or can use prior approval.
Do you cover all of Luton?
Yes, including the surrounding parts of Bedfordshire. Site visits are free and there is no obligation.
Do you handle building regulations?
Yes. We prepare the drawings and calculations, submit them and book inspections, ending with a completion certificate.
Book a free site visit in Luton
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.