Two-storey extensions in South Ruislip
Homeowners in South Ruislip can use us for the whole project or just the drawings and approvals. Start with a free visit.
South Ruislip at a glance
- Postcode districts
- HA4
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Ruislip Manor (1 mile), Ruislip (1.4 miles), Ickenham (1.6 miles), Northolt (1.8 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 HA4 in and around South Ruislip, along with neighbouring Ruislip Manor, Ruislip and Ickenham.
Extensions available in South Ruislip
Two-storey rear extensions
Guide from £67,000 in South Ruislip, including VAT.
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Two-storey side extensions
Design, approvals and build for South Ruislip homes. Guide from £103,500.
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Two-storey wraparound extensions
South Ruislip guide price from £144,500, Standard spec.
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Part single, part two-storey extensions
Design, approvals and build for South Ruislip homes. Guide from £86,500.
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Extensions over a garage
Design, approvals and build for South Ruislip homes. Guide from £38,000.
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First-floor extensions
For homes in South Ruislip: typical guide from £30,000.
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Two-storey extensions for semi-detached houses
Guide from £67,000 in South Ruislip, including VAT.
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Two-storey extensions for detached houses
From £103,500 in South Ruislip. Free visit to firm it up.
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Kitchen extensions with bedrooms above
Guide from £67,000 (before kitchen units) in South Ruislip, including VAT.
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Extra bedroom and en-suite extensions
Design, approvals and build for South Ruislip homes. Guide from £67,000 (plus en-suite).
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 South Ruislip we measure distances to every boundary before suggesting a type.
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 South Ruislip
South Ruislip 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 South Ruislip
Do you cover South Ruislip?
Yes. We cover South Ruislip (HA4) and the surrounding area, including Ruislip Manor and Ruislip. The first site visit is free.
What does a two-storey extension cost in South Ruislip?
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 South Ruislip do you cover?
Everywhere around it, including Ruislip Manor (1 mile), Ruislip (1.4 miles) and Ickenham (1.6 miles), and the rest of Greater London.