Two-storey extensions in Witney
Need more room in Witney? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Witney at a glance
- Postcode districts
- OX7, OX8, OX28 and OX29
- Area
- Oxfordshire, England
- Price region
- South East England
- Nearest towns
- Carterton (5 miles), Kidlington (8.8 miles), Oxford (10 miles), Abingdon (11.6 miles)
- Distance to Oxford
- about 10 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.
Witney sits about 10.0 miles from Oxford. Closer to home, Carterton is 5.0 miles away and Kidlington 8.8 miles.
Extensions available in Witney

Two-storey rear extensions
Guide from £61,500 in Witney, including VAT.
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Two-storey side extensions
Design, approvals and build for Witney homes. Guide from £94,500.
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Two-storey wraparound extensions
From £132,500 in Witney. Free visit to firm it up.
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Part single, part two-storey extensions
From £79,000 in Witney. Free visit to firm it up.
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Extensions over a garage
For homes in Witney: typical guide from £34,500.
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First-floor extensions
Design, approvals and build for Witney homes. Guide from £27,500.
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Two-storey extensions for semi-detached houses
Witney guide price from £61,500, Standard spec.
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Two-storey extensions for detached houses
For homes in Witney: typical guide from £94,500.
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Kitchen extensions with bedrooms above
Witney guide price from £61,500 (before kitchen units), Standard spec.
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Extra bedroom and en-suite extensions
For homes in Witney: typical guide from £61,500 (plus en-suite).
Learn moreWhich type suits your house?
Which type suits your house in Witney 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 Oxfordshire
- 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 Witney
Witney 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 Witney
Do you cover Witney?
Yes. We cover Witney (OX7, OX8, OX28 and OX29) and the surrounding area, including Carterton and Kidlington. The first site visit is free.
What does a two-storey extension cost in Witney?
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 Witney do you cover?
Everywhere around it, including Carterton (5 miles), Kidlington (8.8 miles) and Oxford (10 miles), and the rest of Oxfordshire.