Two-storey extensions in Killamarsh
Planning a bigger home in Killamarsh? Compare extension types and guide prices below, then book a free site visit.
Killamarsh at a glance
- Postcode districts
- S21
- Area
- Derbyshire, England
- Price region
- East Midlands
- Nearest towns
- Beighton (0.9 miles), Staveley (4.2 miles), Dinnington (5.7 miles), Chesterfield (6.6 miles)
- Distance to Derby
- about 28.5 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.
Killamarsh sits about 28.5 miles from Derby. Closer to home, Beighton is 0.9 miles away and Staveley 4.2 miles.
Extensions available in Killamarsh
Two-storey rear extensions
Killamarsh guide price from £55,000, Standard spec.
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Two-storey side extensions
From £84,500 in Killamarsh. Free visit to firm it up.
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Two-storey wraparound extensions
Killamarsh guide price from £118,000, Standard spec.
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Part single, part two-storey extensions
Design, approvals and build for Killamarsh homes. Guide from £70,500.
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Extensions over a garage
For homes in Killamarsh: typical guide from £31,000.
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First-floor extensions
Design, approvals and build for Killamarsh homes. Guide from £24,500.
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Two-storey extensions for semi-detached houses
For homes in Killamarsh: typical guide from £55,000.
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Two-storey extensions for detached houses
Killamarsh guide price from £84,500, Standard spec.
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Kitchen extensions with bedrooms above
For homes in Killamarsh: typical guide from £55,000 (before kitchen units).
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Extra bedroom and en-suite extensions
Design, approvals and build for Killamarsh homes. Guide from £55,000 (plus en-suite).
Learn moreWhich type suits your house?
If you're not sure which type fits, that's what the free visit is for. We'll sketch the realistic options for your house in Killamarsh, with a rough idea of the approval route and cost for each.
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 Killamarsh
Killamarsh 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 Killamarsh
Do you cover Killamarsh?
Yes. We cover Killamarsh (S21) and the surrounding area, including Beighton and Staveley. The first site visit is free.
What does a two-storey extension cost in Killamarsh?
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 Killamarsh do you cover?
Everywhere around it, including Beighton (0.9 miles), Staveley (4.2 miles) and Dinnington (5.7 miles), and the rest of Derbyshire.