Two-storey extensions in Sunninghill
Need more room in Sunninghill? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Sunninghill at a glance
- Postcode districts
- SL5
- Area
- Berkshire, England
- Price region
- South East England
- Nearest towns
- Ascot (1.1 miles), Bracknell (4.2 miles), Egham (4.9 miles), Camberley (5.8 miles)
- Distance to Reading
- about 14.1 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 SL5 in and around Sunninghill, along with neighbouring Ascot, Bracknell and Egham.
Extensions available in Sunninghill
Two-storey rear extensions
Our South East England guide starts at £61,500 for this type.
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Two-storey side extensions
Our South East England guide starts at £94,500 for this type.
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Two-storey wraparound extensions
Design, approvals and build for Sunninghill homes. Guide from £132,500.
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Part single, part two-storey extensions
Design, approvals and build for Sunninghill homes. Guide from £79,000.
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Extensions over a garage
Sunninghill guide price from £34,500, Standard spec.
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First-floor extensions
Our South East England guide starts at £27,500 for this type.
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Two-storey extensions for semi-detached houses
For homes in Sunninghill: typical guide from £61,500.
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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
Our South East England guide starts at £61,500 (before kitchen units) for this type.
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Extra bedroom and en-suite extensions
From £61,500 (plus en-suite) in Sunninghill. Free visit to firm it up.
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 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 Sunninghill
Sunninghill 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 Sunninghill
Do you cover Sunninghill?
Yes. We cover Sunninghill (SL5) and the surrounding area, including Ascot and Bracknell. The first site visit is free.
What does a two-storey extension cost in Sunninghill?
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 Sunninghill do you cover?
Everywhere around it, including Ascot (1.1 miles), Bracknell (4.2 miles) and Egham (4.9 miles), and the rest of Berkshire.