Kingston upon Thames, Greater London
Two-storey rear extension in Kingston upon Thames
Two-storey rear extension in Kingston upon Thames: a larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. We measure the house, show you what the rules allow, price it in writing and build it.
Kingston upon Thames is covered from our Greater London round, including KT1, KT2, KT3 and KT5. In Greater London we check the neighbours' rear windows first, because the upper floor is where most two-storey schemes win or lose planning.
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 Kingston upon Thames?
Guide prices for a two-storey rear extension in Kingston upon Thames start from our London rate of £2,340–£3,510 per square metre, including VAT. 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 Kingston upon Thames?
Planning for a two-storey rear extension in Kingston upon Thames 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. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.
What are homes in Kingston upon Thames like to extend?
Much of Kingston upon Thames is 1920s and 1930s semis and short terraces with longer gardens than inner London, which suit full-width single-storey rear extensions. Parking suspensions, skip licences and controlled hours on residential streets shape the programme more than the build itself.
How a two-storey rear extension in Kingston upon Thames comes together
Free site visit
We measure the house and garden, look at the back wall, drainage and boundaries, and talk through what you want from the space.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
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 Kingston upon Thames
From Kingston upon Thames, the nearest places we also cover are Norbiton (0.6 miles) and Hampton Wick (0.9 miles).
- Two-storey rear extension in Norbiton
- Two-storey rear extension in Hampton Wick
- Two-storey rear extension in Surbiton
- Two-storey rear extension in New Malden
- Two-storey rear extension in East Molesey
Other work in Kingston upon Thames:
FAQ
Two-storey rear extension questions in Kingston upon Thames
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.
How long does a rear extension take to build in Kingston upon Thames?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
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 Kingston upon Thames?
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.
Do you handle building control in Kingston upon Thames?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Is the site visit in Kingston upon Thames free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.