Two-storey extensions in Belper
Everything for a two-storey extension in Belper, in one place: types, guide prices for the East Midlands, the approval rules in England and how to get started.
Belper at a glance
- Postcode districts
- DE56
- Area
- Derbyshire, England
- Price region
- East Midlands
- Nearest towns
- Ripley (3.4 miles), Heanor (5.3 miles), Oakwood (Derbyshire) (5.9 miles), Alfreton (6.5 miles)
- Distance to Derby
- about 6.9 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.
Around Belper we also work in Ripley, Heanor and Oakwood (Derbyshire), and across the rest of Derbyshire. Postcode district in and near Belper: DE56.
Extensions available in Belper

Two-storey rear extensions
Our East Midlands guide starts at £55,000 for this type.
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Two-storey side extensions
Our East Midlands guide starts at £84,500 for this type.
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Two-storey wraparound extensions
From £118,000 in Belper. Free visit to firm it up.
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Part single, part two-storey extensions
Guide from £70,500 in Belper, including VAT.
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Extensions over a garage
Belper guide price from £31,000, Standard spec.
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First-floor extensions
Belper guide price from £24,500, Standard spec.
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Two-storey extensions for semi-detached houses
Our East Midlands guide starts at £55,000 for this type.
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Two-storey extensions for detached houses
From £84,500 in Belper. Free visit to firm it up.
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Kitchen extensions with bedrooms above
Design, approvals and build for Belper homes. Guide from £55,000 (before kitchen units).
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Extra bedroom and en-suite extensions
Belper guide price from £55,000 (plus en-suite), Standard spec.
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 Derbyshire
- 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 Belper
Belper 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 Belper
Do you cover Belper?
Yes. We cover Belper (DE56) and the surrounding area, including Ripley and Heanor. The first site visit is free.
What does a two-storey extension cost in Belper?
Using our East Midlands 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 £55,000–£74,000 including VAT. An extension over a garage is about £31,000–£45,000.
Which other places near Belper do you cover?
Everywhere around it, including Ripley (3.4 miles), Heanor (5.3 miles) and Oakwood (Derbyshire) (5.9 miles), and the rest of Derbyshire.