Two-storey extensions in Sutton
We design, get approval for and build two-storey extensions in Sutton and the surrounding area. Choose the type of extension below or book a free site visit.
Sutton at a glance
- Postcode districts
- SM2
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Belmont (Greater London) (0.5 miles), Cheam (1.2 miles), Carshalton (1.9 miles), Banstead (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.
We cover postcode district SM2 in and around Sutton, along with neighbouring Belmont (Greater London), Cheam and Carshalton.
Extensions available in Sutton
Two-storey rear extensions
From £67,000 in Sutton. Free visit to firm it up.
Learn more
Two-storey side extensions
For homes in Sutton: typical guide from £103,500.
Learn more
Two-storey wraparound extensions
Guide from £144,500 in Sutton, including VAT.
Learn more
Part single, part two-storey extensions
From £86,500 in Sutton. Free visit to firm it up.
Learn more
Extensions over a garage
Guide from £38,000 in Sutton, including VAT.
Learn more
First-floor extensions
For homes in Sutton: typical guide from £30,000.
Learn more
Two-storey extensions for semi-detached houses
For homes in Sutton: typical guide from £67,000.
Learn more
Two-storey extensions for detached houses
From £103,500 in Sutton. Free visit to firm it up.
Learn more
Kitchen extensions with bedrooms above
Our London guide starts at £67,000 (before kitchen units) for this type.
Learn more
Extra bedroom and en-suite extensions
Sutton guide price from £67,000 (plus en-suite), Standard spec.
Learn moreWhich type suits your house?
Which type suits your house in Sutton 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 Sutton
Sutton 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 Sutton
Do you cover Sutton?
Yes. We cover Sutton (SM2) and the surrounding area, including Belmont (Greater London) and Cheam. The first site visit is free.
What does a two-storey extension cost in Sutton?
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 Sutton do you cover?
Everywhere around it, including Belmont (Greater London) (0.5 miles), Cheam (1.2 miles) and Carshalton (1.9 miles), and the rest of Greater London.