Two-storey extensions in Kidbrooke
Need more room in Kidbrooke? Two-storey and first-floor extensions add bedrooms and living space without moving. Here's everything we offer locally.
Kidbrooke at a glance
- Postcode districts
- SE3
- Area
- Greater London, England
- Price region
- London
- Nearest towns
- Blackheath (0.8 miles), Mottingham (1.1 miles), Lee (1.2 miles), Charlton (1.4 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 Kidbrooke (SE3) and the places around it, including Blackheath (0.8 miles), Mottingham (1.1 miles) and Lee.
Extensions available in Kidbrooke

Two-storey rear extensions
Guide from £67,000 in Kidbrooke, including VAT.
Learn more
Two-storey side extensions
Kidbrooke guide price from £103,500, Standard spec.
Learn more
Two-storey wraparound extensions
Guide from £144,500 in Kidbrooke, including VAT.
Learn more
Part single, part two-storey extensions
For homes in Kidbrooke: typical guide from £86,500.
Learn more
Extensions over a garage
From £38,000 in Kidbrooke. Free visit to firm it up.
Learn more
First-floor extensions
Guide from £30,000 in Kidbrooke, including VAT.
Learn more
Two-storey extensions for semi-detached houses
For homes in Kidbrooke: typical guide from £67,000.
Learn more
Two-storey extensions for detached houses
From £103,500 in Kidbrooke. 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
For homes in Kidbrooke: typical guide from £67,000 (plus en-suite).
Learn moreWhich type suits your house?
Rear, side, wraparound or over the garage: each adds space in a different way. For most houses in Greater London, one or two of these will clearly suit the plot better than the rest, and we'll tell you which.
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 Kidbrooke
Kidbrooke 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 Kidbrooke
Do you cover Kidbrooke?
Yes. We cover Kidbrooke (SE3) and the surrounding area, including Blackheath and Mottingham. The first site visit is free.
What does a two-storey extension cost in Kidbrooke?
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 Kidbrooke do you cover?
Everywhere around it, including Blackheath (0.8 miles), Mottingham (1.1 miles) and Lee (1.2 miles), and the rest of Greater London.