Greenwich, Greater London
Two-storey rear extension in Greenwich
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 Greenwich and the surrounding area, with one contract from the first survey to building control sign-off.
Greenwich is covered from our Greater London round, including SE3, SE7, SE10 and SE12. Two-storey rear extensions suit semi-detached houses in Greenwich 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 Greenwich?
A two-storey rear extension in Greenwich 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 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a two-storey rear extension in Greenwich?
Planning for a two-storey rear extension in Greenwich follows the English householder rules.
England's rules allow a rear extension of more than one storey without an application only when it is no deeper than 3 metres and at least 7 metres from the boundary opposite the rear wall, and never on designated land. Most two-storey schemes need householder planning permission.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. At the first visit we measure what is there now and tell you which route fits: permitted development, prior approval or a planning application.
What are homes in Greenwich like to extend?
Much of Greenwich is Victorian and Edwardian terraced housing with narrow back additions, which suits side returns, wraparounds and 3 metre rear extensions. Many streets are in conservation areas, gardens are short, and almost everything comes through the house or along a rear alley.
How a two-storey rear extension in Greenwich 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.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
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 Greenwich
Neighbouring places we cover include New Cross (1.2 miles) and Blackheath (1.2 miles).
- Two-storey rear extension in New Cross
- Two-storey rear extension in Blackheath
- Two-storey rear extension in Brockley
- Two-storey rear extension in Ladywell
- Two-storey rear extension in Lee
Other work in Greenwich:
FAQ
Two-storey rear extension questions in Greenwich
Is the site visit in Greenwich free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Who will build my extension?
Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.
Is two-storey cheaper per square metre than single-storey?
Usually yes, because the foundations and roof are shared across twice the floor area. The total cost is higher.
Do you handle building control in Greenwich?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
What postcode areas do you cover around Greenwich?
Including SE3, SE7, SE10 and SE12, and the surrounding Greater London area.
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.