Two-storey extensions in Bayswater
We design, get approval for and build two-storey extensions in Bayswater and the surrounding area. Choose the type of extension below or book a free site visit.
Bayswater at a glance
- Postcode districts
- W2
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Little Venice (0.9 miles), Knightsbridge and Belgravia (0.9 miles), Notting Hill (0.9 miles), Maida Hill (1.1 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 W2 in and around Bayswater, along with neighbouring Little Venice, Knightsbridge and Belgravia and Notting Hill.
Extensions available in Bayswater
Two-storey rear extensions
Bayswater guide price from £67,000, Standard spec.
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Two-storey side extensions
For homes in Bayswater: typical guide from £103,500.
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Two-storey wraparound extensions
Bayswater guide price from £144,500, Standard spec.
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Part single, part two-storey extensions
Design, approvals and build for Bayswater homes. Guide from £86,500.
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Extensions over a garage
For homes in Bayswater: typical guide from £38,000.
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First-floor extensions
For homes in Bayswater: typical guide from £30,000.
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Two-storey extensions for semi-detached houses
From £67,000 in Bayswater. Free visit to firm it up.
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Two-storey extensions for detached houses
Bayswater guide price from £103,500, Standard spec.
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Kitchen extensions with bedrooms above
Our London guide starts at £67,000 (before kitchen units) for this type.
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Extra bedroom and en-suite extensions
Bayswater guide price from £67,000 (plus en-suite), Standard spec.
Learn moreWhich type suits your house?
Which type suits your house in Bayswater 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 Greater London
- 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 Bayswater
Bayswater 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 Bayswater
Do you cover Bayswater?
Yes. We cover Bayswater (W2) and the surrounding area, including Little Venice and Knightsbridge and Belgravia. The first site visit is free.
What does a two-storey extension cost in Bayswater?
Using our London 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 £67,000–£90,500 including VAT. An extension over a garage is about £38,000–£55,000.
Which other places near Bayswater do you cover?
Everywhere around it, including Little Venice (0.9 miles), Knightsbridge and Belgravia (0.9 miles) and Notting Hill (0.9 miles), and the rest of Greater London.