Two-storey extensions in Ruislip
We design, get approval for and build two-storey extensions in Ruislip and the surrounding area. Choose the type of extension below or book a free site visit.
Ruislip at a glance
- Postcode districts
- HA4
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Ruislip Manor (0.6 miles), Ickenham (1.1 miles), South Ruislip (1.4 miles), Northwood Hills (1.9 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.
Around Ruislip we also work in Ruislip Manor, Ickenham and South Ruislip, and across the rest of Greater London. Postcode district in and near Ruislip: HA4.
Extensions available in Ruislip
Two-storey rear extensions
From £67,000 in Ruislip. Free visit to firm it up.
Learn more
Two-storey side extensions
From £103,500 in Ruislip. Free visit to firm it up.
Learn more
Two-storey wraparound extensions
For homes in Ruislip: typical guide from £144,500.
Learn more
Part single, part two-storey extensions
Ruislip guide price from £86,500, Standard spec.
Learn more
Extensions over a garage
Guide from £38,000 in Ruislip, including VAT.
Learn more
First-floor extensions
Our London guide starts at £30,000 for this type.
Learn more
Two-storey extensions for semi-detached houses
Design, approvals and build for Ruislip homes. Guide from £67,000.
Learn more
Two-storey extensions for detached houses
Our London guide starts at £103,500 for this type.
Learn more
Kitchen extensions with bedrooms above
Design, approvals and build for Ruislip homes. Guide from £67,000 (before kitchen units).
Learn more
Extra bedroom and en-suite extensions
From £67,000 (plus en-suite) in Ruislip. 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 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
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 Ruislip
Do you cover Ruislip?
Yes. We cover Ruislip (HA4) and the surrounding area, including Ruislip Manor and Ickenham. The first site visit is free.
What does a two-storey extension cost in 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 Ruislip do you cover?
Everywhere around it, including Ruislip Manor (0.6 miles), Ickenham (1.1 miles) and South Ruislip (1.4 miles), and the rest of Greater London.