Two-storey extensions in Newbury
From over-garage bedrooms to full wraparounds, we cover every kind of two-storey extension in Newbury.
Newbury at a glance
- Postcode districts
- RG14, RG17 and RG20
- Area
- Berkshire, England
- Price region
- South East England
- Nearest towns
- Thatcham (2.8 miles), Tadley (9.2 miles), Wantage (13.6 miles), Basingstoke (14.1 miles)
- Distance to Reading
- about 15.7 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.
Newbury sits about 15.7 miles from Reading. Closer to home, Thatcham is 2.8 miles away and Tadley 9.2 miles.
Extensions available in Newbury

Two-storey rear extensions
For homes in Newbury: typical guide from £61,500.
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Two-storey side extensions
Design, approvals and build for Newbury homes. Guide from £94,500.
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Two-storey wraparound extensions
Our South East England guide starts at £132,500 for this type.
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Part single, part two-storey extensions
Newbury guide price from £79,000, Standard spec.
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Extensions over a garage
Newbury guide price from £34,500, Standard spec.
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First-floor extensions
Design, approvals and build for Newbury homes. Guide from £27,500.
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Two-storey extensions for semi-detached houses
Guide from £61,500 in Newbury, including VAT.
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Two-storey extensions for detached houses
Our South East England guide starts at £94,500 for this type.
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Kitchen extensions with bedrooms above
Guide from £61,500 (before kitchen units) in Newbury, including VAT.
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Extra bedroom and en-suite extensions
From £61,500 (plus en-suite) in Newbury. Free visit to firm it up.
Learn moreWhich type suits your house?
The boundaries usually decide it. Two-storey work close to a neighbour needs careful design for light and privacy, so at the visit in Newbury we measure distances to every boundary before suggesting a type.
Also available in Berkshire
- 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 Newbury
Newbury 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 Newbury
Do you cover Newbury?
Yes. We cover Newbury (RG14, RG17 and RG20) and the surrounding area, including Thatcham and Tadley. The first site visit is free.
What does a two-storey extension cost in Newbury?
Using our South East 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 £61,500–£83,000 including VAT. An extension over a garage is about £34,500–£50,500.
Which other places near Newbury do you cover?
Everywhere around it, including Thatcham (2.8 miles), Tadley (9.2 miles) and Wantage (13.6 miles), and the rest of Berkshire.