Two-storey extensions in Bentley
We design, get approval for and build two-storey extensions in Bentley and the surrounding area. Choose the type of extension below or book a free site visit.
Bentley at a glance
- Postcode districts
- DN5
- Area
- South Yorkshire, England
- Price region
- Yorkshire and the Humber
- Nearest towns
- Doncaster (1.1 miles), Adwick le Street (2.9 miles), Kirk Sandall (3.9 miles), Armthorpe (4 miles)
- Distance to Sheffield
- about 16.6 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.
We cover Bentley (DN5) and the places around it, including Doncaster (1.1 miles), Adwick le Street (2.9 miles) and Kirk Sandall.
Extensions available in Bentley
Two-storey rear extensions
Our Yorkshire and the Humber guide starts at £51,500 for this type.
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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 Bentley homes. Guide from £111,000.
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Part single, part two-storey extensions
Bentley guide price from £66,000, Standard spec.
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Extensions over a garage
Design, approvals and build for Bentley homes. Guide from £29,000.
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First-floor extensions
Our Yorkshire and the Humber guide starts at £23,000 for this type.
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Two-storey extensions for semi-detached houses
For homes in Bentley: typical guide from £51,500.
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Two-storey extensions for detached houses
Bentley guide price from £79,000, Standard spec.
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Kitchen extensions with bedrooms above
From £51,500 (before kitchen units) in Bentley. Free visit to firm it up.
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Extra bedroom and en-suite extensions
Guide from £51,500 (plus en-suite) in Bentley, including VAT.
Learn moreWhich type suits your house?
Which type suits your house in Bentley 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 Bentley
Bentley 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 Bentley
Do you cover Bentley?
Yes. We cover Bentley (DN5) and the surrounding area, including Doncaster and Adwick le Street. The first site visit is free.
What does a two-storey extension cost in Bentley?
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 Bentley do you cover?
Everywhere around it, including Doncaster (1.1 miles), Adwick le Street (2.9 miles) and Kirk Sandall (3.9 miles), and the rest of South Yorkshire.