Kidbrooke, Greater London
Two-storey rear extension in Kidbrooke
A larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. We design, get the approvals for and build two-storey rear extensions in Kidbrooke and the surrounding area, with one contract from the first survey to building control sign-off.
Kidbrooke and its postcode districts SE3, SE7 and SE10 are part of our Greater London coverage. Two-storey rear extensions suit semi-detached houses in Kidbrooke best, where the extra bedroom matters as much as the bigger kitchen.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
How much does a two-storey rear extension cost in Kidbrooke?
A two-storey rear extension in Kidbrooke is priced at £2,340–£3,510 per square metre including VAT as a guide, before kitchen fit-out and fees. London prices sit at the top of our range because of labour rates, access through the house, parking suspensions and skip licences.
| Size | Guide price inc VAT |
|---|---|
| 3 m × 5 m footprint, two floors (30 m²) | £70,000–£105,500 |
| 4 m × 6 m footprint, two floors (48 m²) | £112,500–£168,500 |
We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
Do you need planning permission for a two-storey rear extension in Kidbrooke?
Here is how the rules in England apply to a two-storey rear extension in Kidbrooke.
A two-storey rear extension can be permitted development in England only if it projects no more than 3 metres, stays at least 7 metres from the rear boundary, matches the existing roof pitch and has obscure-glazed upper side windows. In practice most double-storey rear extensions go through a householder planning application.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Kidbrooke like to extend?
Period terraces in Kidbrooke sit alongside flats, and the difference matters: houses usually keep permitted development rights, while flats and maisonettes need planning permission for any rear extension.
How a two-storey rear extension in Kidbrooke comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Approvals
Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.
Build and sign-off
We build to the approved drawings with regular updates, then hand over the building control completion certificate and any guarantees from suppliers.
Two-storey rear extensions near Kidbrooke
Neighbouring places we cover include Blackheath (0.8 miles) and Lee (1.2 miles).
- Two-storey rear extension in Blackheath
- Two-storey rear extension in Lee
- Two-storey rear extension in Charlton
- Two-storey rear extension in Eltham
- Two-storey rear extension in Greenwich
Other work in Kidbrooke:
FAQ
Two-storey rear extension questions in Kidbrooke
Do you handle building control in Kidbrooke?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Is the site visit in Kidbrooke free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Can it be built on a terraced house?
Sometimes, but the upper floor is harder to get through planning on a terrace because of the effect on neighbours. A single-storey extension with a loft conversion is often an easier route.
How much does a two-storey rear extension cost in Kidbrooke?
As a guide, £2,340–£3,510 per square metre including VAT for a standard specification. For example, 3 m × 5 m footprint, two floors (30 m²): about £70,000–£105,500 at that rate. Your written price follows the survey.
Will I need a structural engineer?
Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.
Can I get a price without a visit?
Our online guide-price tool gives a range in a couple of minutes. A written price needs a survey.