Two-storey extensions in Kempston
Homeowners in Kempston can use us for the whole project or just the drawings and approvals. Start with a free visit.
Kempston at a glance
- Postcode districts
- MK43
- Area
- Bedfordshire, England
- Price region
- East of England
- Nearest towns
- Kempston Hardwick (1.8 miles), Bedford (1.9 miles), Ampthill (6.2 miles), Flitwick (7.8 miles)
- Distance to Luton
- about 16.7 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 Kempston (MK43) and the places around it, including Kempston Hardwick (1.8 miles), Bedford (1.9 miles) and Ampthill.
Extensions available in Kempston
Two-storey rear extensions
Our East of England guide starts at £57,500 for this type.
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Two-storey side extensions
From £88,500 in Kempston. Free visit to firm it up.
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Two-storey wraparound extensions
From £124,000 in Kempston. Free visit to firm it up.
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Part single, part two-storey extensions
From £74,000 in Kempston. Free visit to firm it up.
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Extensions over a garage
For homes in Kempston: typical guide from £32,500.
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First-floor extensions
Design, approvals and build for Kempston homes. Guide from £26,000.
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Two-storey extensions for semi-detached houses
Guide from £57,500 in Kempston, including VAT.
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Two-storey extensions for detached houses
Guide from £88,500 in Kempston, including VAT.
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Kitchen extensions with bedrooms above
Guide from £57,500 (before kitchen units) in Kempston, including VAT.
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Extra bedroom and en-suite extensions
From £57,500 (plus en-suite) in Kempston. Free visit to firm it up.
Learn moreWhich type suits your house?
Start with what you need the space for. Bedrooms and an en-suite upstairs with a bigger kitchen below is the classic two-storey brief, but in Kempston we also design annexes, home offices and bedrooms over garages.
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 Kempston
Kempston 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 Kempston
Do you cover Kempston?
Yes. We cover Kempston (MK43) and the surrounding area, including Kempston Hardwick and Bedford. The first site visit is free.
What does a two-storey extension cost in Kempston?
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 Kempston do you cover?
Everywhere around it, including Kempston Hardwick (1.8 miles), Bedford (1.9 miles) and Ampthill (6.2 miles), and the rest of Bedfordshire.