Two-storey extensions in Burnley
Homeowners in Burnley can use us for the whole project or just the drawings and approvals. Start with a free visit.
Burnley at a glance
- Postcode districts
- BB10 and BB11
- Area
- Lancashire, England
- Price region
- North West England
- Nearest towns
- Brierfield (1.7 miles), Nelson (Lancashire) (2.7 miles), Padiham (3.3 miles), Colne (4.7 miles)
- Distance to Preston
- about 19.4 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.
Burnley sits about 19.4 miles from Preston. Closer to home, Brierfield is 1.7 miles away and Nelson (Lancashire) 2.7 miles.
Extensions available in Burnley

Two-storey rear extensions
Burnley guide price from £53,000, Standard spec.
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Two-storey side extensions
For homes in Burnley: typical guide from £82,000.
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Two-storey wraparound extensions
Our North West England guide starts at £114,500 for this type.
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Part single, part two-storey extensions
For homes in Burnley: typical guide from £68,500.
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Extensions over a garage
Our North West England guide starts at £30,000 for this type.
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First-floor extensions
For homes in Burnley: typical guide from £24,000.
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Two-storey extensions for semi-detached houses
For homes in Burnley: typical guide from £53,000.
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Two-storey extensions for detached houses
Burnley guide price from £82,000, Standard spec.
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Kitchen extensions with bedrooms above
Burnley guide price from £53,000 (before kitchen units), Standard spec.
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Extra bedroom and en-suite extensions
Our North West England guide starts at £53,000 (plus en-suite) for this type.
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 Lancashire
- 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 Burnley
Burnley 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 Burnley
Do you cover Burnley?
Yes. We cover Burnley (BB10 and BB11) and the surrounding area, including Brierfield and Nelson (Lancashire). The first site visit is free.
What does a two-storey extension cost in Burnley?
Using our North West England 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 £53,000–£72,000 including VAT. An extension over a garage is about £30,000–£43,500.
Which other places near Burnley do you cover?
Everywhere around it, including Brierfield (1.7 miles), Nelson (Lancashire) (2.7 miles) and Padiham (3.3 miles), and the rest of Lancashire.