Two-storey extensions in Luton
Planning a bigger home in Luton? Compare extension types and guide prices below, then book a free site visit.
Luton at a glance
- Postcode districts
- LU1, LU2, LU3 and LU4
- Area
- Bedfordshire, England
- Price region
- East of England
- Nearest towns
- Dunstable (4.5 miles), Harpenden (5 miles), Hitchin (7.4 miles), Codicote (8 miles)
- Approvals
- Two-storey rear: up to 3 m deep and 7 m from the rear boundary under permitted development. Side, wraparound and front: planning permission.
We cover postcode districts LU1, LU2, LU3 and LU4 in and around Luton, along with neighbouring Dunstable, Harpenden and Hitchin.
Extensions available in Luton
Two-storey rear extensions
Luton guide price from £57,500, Standard spec.
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Two-storey side extensions
Our East of England guide starts at £88,500 for this type.
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Two-storey wraparound extensions
Guide from £124,000 in Luton, including VAT.
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Part single, part two-storey extensions
From £74,000 in Luton. Free visit to firm it up.
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Extensions over a garage
Luton guide price from £32,500, Standard spec.
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First-floor extensions
Guide from £26,000 in Luton, including VAT.
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Two-storey extensions for semi-detached houses
From £57,500 in Luton. Free visit to firm it up.
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Two-storey extensions for detached houses
Luton guide price from £88,500, Standard spec.
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Kitchen extensions with bedrooms above
For homes in Luton: typical guide from £57,500 (before kitchen units).
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Extra bedroom and en-suite extensions
Our East of England guide starts at £57,500 (plus en-suite) for this type.
Learn moreWhich type suits your house?
Rear and side extensions suit most semi-detached and detached houses with room around them. Terraced and town-centre homes can take a two-storey extension too, with more care over neighbours, light and access.
Also available in Bedfordshire
- Two-storey front extensions
- Two-storey extensions for end-of-terrace houses
- Two-storey annexe extensions
- Garage conversions with a room above
- Two-storey extension plans and drawings
- Planning permission for two-storey extensions
- Structural engineering for two-storey extensions
- Building regulations for two-storey extensions
- Party wall notices for extensions
- Design and build two-storey extensions
Rules for Luton
Luton is in England. Two-storey rear: up to 3 m deep and 7 m from the rear boundary under permitted development. Side, wraparound and front: planning permission. Householder planning application: £548 (or £575 for applications made from 8 December 2026). Lawful development certificate: £274 (about £288 for applications from 8 December 2026). Councils should decide householder applications within 8 weeks of validation.
The full England rules explained
Questions about extensions in Luton
Do you cover Luton?
Yes. We cover Luton (LU1, LU2, LU3 and LU4) and the surrounding area, including Dunstable and Harpenden. The first site visit is free.
What does a two-storey extension cost in Luton?
Using our East of England guide, a two-storey rear extension with a 4 m × 3.5 m footprint on two floors (28 m² of new floor space) is about £57,500–£78,000 including VAT. An extension over a garage is about £32,500–£47,500.
Which other places near Luton do you cover?
Everywhere around it, including Dunstable (4.5 miles), Harpenden (5 miles) and Hitchin (7.4 miles), and the rest of Bedfordshire.