Tonbridge, Kent
Wraparound extension in Tonbridge
An L-shaped extension that fills the side return and runs across the back. If you live in Tonbridge and want to know what a wraparound extension would cost and whether it needs planning, start with the online guide price or a free site visit.
We cover Tonbridge (TN9, TN10 and TN11) as part of our Kent work. Wraparound projects around Tonbridge often involve two neighbours, so we start the party wall conversations early.
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 wraparound extension cost in Tonbridge?
A wraparound extension in Tonbridge is priced at £2,460–£4,030 per square metre including VAT as a guide, before kitchen fit-out and fees. South East prices run above our West Midlands baseline, mainly on labour rates and clay-soil foundations.
| Size | Guide price inc VAT |
|---|---|
| L-shaped, about 22 m² of new floor | £54,000–£88,500 |
| L-shaped, about 30 m² of new floor | £74,000–£121,000 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a wraparound extension in Tonbridge?
Whether your wraparound extension in Tonbridge needs a planning application depends on its size, your house and any local restrictions.
Side return infills and the side leg of a wraparound are treated as side extensions in England: single-storey, no more than 4 metres high and no wider than half the original house. They are not permitted development in conservation areas, National Parks or National Landscapes, and a joined wraparound often needs a planning application because the side and rear rules apply together.
The Party Wall etc. Act 1996 applies in England: you serve notice two months before work to a shared wall, and one month before digging foundations within 3 metres (or 6 metres for deeper foundations) of a neighbour's building. Neighbours can agree in writing; if they dissent, surveyors agree an award.
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 Tonbridge like to extend?
Commuter semis and detached houses make up much of Tonbridge, and longer gardens make England's prior approval route for deeper rear extensions worth considering.
How a wraparound extension in Tonbridge 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.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
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.
Wraparound extensions near Tonbridge
Neighbouring places we cover include Royal Tunbridge Wells (4.3 miles) and Sevenoaks (6.5 miles).
- Wraparound extension in Royal Tunbridge Wells
- Wraparound extension in Sevenoaks
- Wraparound extension in Crowborough
- Wraparound extension in Maidstone
- Wraparound extension in Snodland
Other work in Tonbridge:
FAQ
Wraparound extension questions in Tonbridge
How long does a rear extension take to build in Tonbridge?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
How much does a wraparound extension cost in Tonbridge?
As a guide, £2,460–£4,030 per square metre including VAT for a standard specification. For example, L-shaped, about 22 m² of new floor: about £54,000–£88,500 at that rate. Your written price follows the survey.
Is it worth it over a side return alone?
If you want a dining table and a sofa as well as the kitchen, usually yes.
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.
What postcode areas do you cover around Tonbridge?
Including TN9, TN10 and TN11, and the surrounding Kent area.
Is the site visit in Tonbridge free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.