Two-storey extensions in Oldham
We design, get approval for and build two-storey extensions in Oldham and the surrounding area. Choose the type of extension below or book a free site visit.
Oldham at a glance
- Postcode districts
- OL1
- Area
- Greater Manchester, England
- Price region
- North West England
- Nearest towns
- Chadderton (0.9 miles), Royton (1.7 miles), Hollinwood (1.8 miles), Lees (1.9 miles)
- Distance to Manchester
- about 6.4 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.
We cover postcode district OL1 in and around Oldham, along with neighbouring Chadderton, Royton and Hollinwood.
Extensions available in Oldham
Two-storey rear extensions
Our North West England guide starts at £53,000 for this type.
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Two-storey side extensions
For homes in Oldham: typical guide from £82,000.
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Two-storey wraparound extensions
For homes in Oldham: typical guide from £114,500.
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Part single, part two-storey extensions
Oldham guide price from £68,500, Standard spec.
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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
Oldham guide price from £24,000, Standard spec.
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Two-storey extensions for semi-detached houses
Our North West England guide starts at £53,000 for this type.
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Two-storey extensions for detached houses
For homes in Oldham: typical guide from £82,000.
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Kitchen extensions with bedrooms above
Oldham guide price from £53,000 (before kitchen units), Standard spec.
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Extra bedroom and en-suite extensions
Guide from £53,000 (plus en-suite) in Oldham, including VAT.
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 Oldham, with a rough idea of the approval route and cost for each.
Also available in Greater Manchester
- 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 Oldham
Oldham 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 Oldham
Do you cover Oldham?
Yes. We cover Oldham (OL1) and the surrounding area, including Chadderton and Royton. The first site visit is free.
What does a two-storey extension cost in Oldham?
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 Oldham do you cover?
Everywhere around it, including Chadderton (0.9 miles), Royton (1.7 miles) and Hollinwood (1.8 miles), and the rest of Greater Manchester.