Two-storey extensions in Sinfin
Planning a bigger home in Sinfin? Compare extension types and guide prices below, then book a free site visit.
Sinfin at a glance
- Postcode districts
- DE23, DE24 and DE73
- Area
- Derbyshire, England
- Price region
- East Midlands
- Nearest towns
- Derby (2.9 miles), Chaddesden (4 miles), Oakwood (Derbyshire) (4.9 miles), Swadlincote (8 miles)
- Distance to Derby
- about 2.9 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 Sinfin we also work in Derby, Chaddesden and Oakwood (Derbyshire), and across the rest of Derbyshire. Postcode districts in and near Sinfin: DE23, DE24 and DE73.
Extensions available in Sinfin
Two-storey rear extensions
For homes in Sinfin: typical guide from £55,000.
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Two-storey side extensions
Design, approvals and build for Sinfin homes. Guide from £84,500.
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Two-storey wraparound extensions
Design, approvals and build for Sinfin homes. Guide from £118,000.
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Part single, part two-storey extensions
From £70,500 in Sinfin. Free visit to firm it up.
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Extensions over a garage
Guide from £31,000 in Sinfin, including VAT.
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First-floor extensions
Our East Midlands guide starts at £24,500 for this type.
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Two-storey extensions for semi-detached houses
Guide from £55,000 in Sinfin, including VAT.
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Two-storey extensions for detached houses
From £84,500 in Sinfin. Free visit to firm it up.
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Kitchen extensions with bedrooms above
Our East Midlands guide starts at £55,000 (before kitchen units) for this type.
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Extra bedroom and en-suite extensions
Our East Midlands guide starts at £55,000 (plus en-suite) for this type.
Learn moreWhich type suits your house?
The boundaries usually decide it. Two-storey work close to a neighbour needs careful design for light and privacy, so at the visit in Sinfin we measure distances to every boundary before suggesting a type.
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 Sinfin
Sinfin 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 Sinfin
Do you cover Sinfin?
Yes. We cover Sinfin (DE23, DE24 and DE73) and the surrounding area, including Derby and Chaddesden. The first site visit is free.
What does a two-storey extension cost in Sinfin?
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 Sinfin do you cover?
Everywhere around it, including Derby (2.9 miles), Chaddesden (4 miles) and Oakwood (Derbyshire) (4.9 miles), and the rest of Derbyshire.