Two-storey extensions in Ruislip Manor
Planning a bigger home in Ruislip Manor? Compare extension types and guide prices below, then book a free site visit.
Ruislip Manor at a glance
- Postcode districts
- HA4
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Ruislip (0.6 miles), South Ruislip (1 mile), Ickenham (1.5 miles), Northwood Hills (2 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 Ruislip Manor (HA4) and the places around it, including Ruislip (0.6 miles), South Ruislip (1.0 miles) and Ickenham.
Extensions available in Ruislip Manor

Two-storey rear extensions
Ruislip Manor guide price from £67,000, Standard spec.
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Two-storey side extensions
Guide from £103,500 in Ruislip Manor, including VAT.
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Two-storey wraparound extensions
From £144,500 in Ruislip Manor. Free visit to firm it up.
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Part single, part two-storey extensions
Our London guide starts at £86,500 for this type.
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Extensions over a garage
Our London guide starts at £38,000 for this type.
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First-floor extensions
Guide from £30,000 in Ruislip Manor, including VAT.
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Two-storey extensions for semi-detached houses
Design, approvals and build for Ruislip Manor homes. Guide from £67,000.
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Two-storey extensions for detached houses
Design, approvals and build for Ruislip Manor homes. Guide from £103,500.
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Kitchen extensions with bedrooms above
For homes in Ruislip Manor: typical guide from £67,000 (before kitchen units).
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Extra bedroom and en-suite extensions
Our London guide starts at £67,000 (plus en-suite) for this type.
Learn moreWhich type suits your house?
Which type suits your house in Ruislip Manor 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 Ruislip Manor
Ruislip Manor 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 Ruislip Manor
Do you cover Ruislip Manor?
Yes. We cover Ruislip Manor (HA4) and the surrounding area, including Ruislip and South Ruislip. The first site visit is free.
What does a two-storey extension cost in Ruislip Manor?
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 Ruislip Manor do you cover?
Everywhere around it, including Ruislip (0.6 miles), South Ruislip (1 mile) and Ickenham (1.5 miles), and the rest of Greater London.