Two-storey extensions in Ascot
Planning a bigger home in Ascot? Compare extension types and guide prices below, then book a free site visit.
Ascot at a glance
- Postcode districts
- SL5
- Area
- Berkshire, England
- Price region
- South East England
- Nearest towns
- Sunninghill (1.1 miles), Bracknell (3.3 miles), Egham (5.5 miles), Crowthorne (5.8 miles)
- Distance to Reading
- about 13.1 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 Ascot, along with neighbouring Sunninghill, Bracknell and Egham.
Extensions available in Ascot
Two-storey rear extensions
Ascot guide price from £61,500, Standard spec.
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Two-storey side extensions
Guide from £94,500 in Ascot, including VAT.
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Two-storey wraparound extensions
Ascot guide price from £132,500, Standard spec.
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Part single, part two-storey extensions
From £79,000 in Ascot. Free visit to firm it up.
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Extensions over a garage
Guide from £34,500 in Ascot, including VAT.
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First-floor extensions
Ascot guide price from £27,500, Standard spec.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Ascot homes. Guide from £61,500.
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Two-storey extensions for detached houses
Guide from £94,500 in Ascot, including VAT.
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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 Ascot. Free visit to firm it up.
Learn moreWhich type suits your house?
Which type suits your house in Ascot 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 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 Ascot
Ascot 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 Ascot
Do you cover Ascot?
Yes. We cover Ascot (SL5) and the surrounding area, including Sunninghill and Bracknell. The first site visit is free.
What does a two-storey extension cost in Ascot?
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 Ascot do you cover?
Everywhere around it, including Sunninghill (1.1 miles), Bracknell (3.3 miles) and Egham (5.5 miles), and the rest of Berkshire.