Two-storey extensions in Barnsley
Planning a bigger home in Barnsley? Compare extension types and guide prices below, then book a free site visit.
Barnsley at a glance
- Postcode districts
- S70 and S75
- Area
- South Yorkshire, England
- Price region
- Yorkshire and the Humber
- Nearest towns
- Darton (3.1 miles), Cudworth (3.1 miles), Royston (South Yorkshire) (3.7 miles), Hoyland Nether (3.7 miles)
- Distance to Sheffield
- about 11.6 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.
Barnsley sits about 11.6 miles from Sheffield. Closer to home, Darton is 3.1 miles away and Cudworth 3.1 miles.
Extensions available in Barnsley
Two-storey rear extensions
From £51,500 in Barnsley. Free visit to firm it up.
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Two-storey side extensions
Our Yorkshire and the Humber guide starts at £79,000 for this type.
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Two-storey wraparound extensions
Design, approvals and build for Barnsley homes. Guide from £111,000.
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Part single, part two-storey extensions
Barnsley guide price from £66,000, Standard spec.
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Extensions over a garage
Design, approvals and build for Barnsley homes. Guide from £29,000.
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First-floor extensions
From £23,000 in Barnsley. Free visit to firm it up.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Barnsley homes. Guide from £51,500.
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Two-storey extensions for detached houses
Design, approvals and build for Barnsley homes. Guide from £79,000.
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Kitchen extensions with bedrooms above
For homes in Barnsley: typical guide from £51,500 (before kitchen units).
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Extra bedroom and en-suite extensions
For homes in Barnsley: typical guide from £51,500 (plus en-suite).
Learn moreWhich type suits your house?
Which type suits your house in Barnsley depends mostly on where you have room. A deep garden points to a rear extension; space beside the house points to a side or over-garage extension; a house that already has a single-storey extension can often take a first floor on top.
Also available in South Yorkshire
- 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 Barnsley
Barnsley 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 Barnsley
Do you cover Barnsley?
Yes. We cover Barnsley (S70 and S75) and the surrounding area, including Darton and Cudworth. The first site visit is free.
What does a two-storey extension cost in Barnsley?
Using our Yorkshire and the Humber 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 £51,500–£69,500 including VAT. An extension over a garage is about £29,000–£42,000.
Which other places near Barnsley do you cover?
Everywhere around it, including Darton (3.1 miles), Cudworth (3.1 miles) and Royston (South Yorkshire) (3.7 miles), and the rest of South Yorkshire.