Two-storey extensions in Hollinwood
Planning a bigger home in Hollinwood? Compare extension types and guide prices below, then book a free site visit.
Hollinwood at a glance
- Postcode districts
- OL8
- Area
- Greater Manchester, England
- Price region
- North West England
- Nearest towns
- Failsworth (1.6 miles), Oldham (1.8 miles), Chadderton (2 miles), Ashton-under-Lyne (2.4 miles)
- Distance to Manchester
- about 4.9 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 OL8 in and around Hollinwood, along with neighbouring Failsworth, Oldham and Chadderton.
Extensions available in Hollinwood

Two-storey rear extensions
For homes in Hollinwood: typical guide from £53,000.
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Two-storey side extensions
For homes in Hollinwood: typical guide from £82,000.
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Two-storey wraparound extensions
Guide from £114,500 in Hollinwood, including VAT.
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Part single, part two-storey extensions
Our North West England guide starts at £68,500 for this type.
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Extensions over a garage
From £30,000 in Hollinwood. Free visit to firm it up.
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First-floor extensions
Hollinwood guide price from £24,000, Standard spec.
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Two-storey extensions for semi-detached houses
Guide from £53,000 in Hollinwood, including VAT.
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Two-storey extensions for detached houses
Guide from £82,000 in Hollinwood, including VAT.
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Kitchen extensions with bedrooms above
Our North West England guide starts at £53,000 (before kitchen units) for this type.
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Extra bedroom and en-suite extensions
Design, approvals and build for Hollinwood homes. Guide from £53,000 (plus en-suite).
Learn moreWhich type suits your house?
Start with what you need the space for. Bedrooms and an en-suite upstairs with a bigger kitchen below is the classic two-storey brief, but in Hollinwood we also design annexes, home offices and bedrooms over garages.
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 Hollinwood
Hollinwood 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 Hollinwood
Do you cover Hollinwood?
Yes. We cover Hollinwood (OL8) and the surrounding area, including Failsworth and Oldham. The first site visit is free.
What does a two-storey extension cost in Hollinwood?
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 Hollinwood do you cover?
Everywhere around it, including Failsworth (1.6 miles), Oldham (1.8 miles) and Chadderton (2 miles), and the rest of Greater Manchester.