Whitstable, Kent
Two-storey rear extension in Whitstable
Two-storey rear extension in Whitstable: 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.
Whitstable and its postcode districts CT5 are part of our Kent coverage. In Whitstable, a two-storey rear extension is worth comparing with the cost of moving once stamp duty, agents' and legal fees are counted.
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 Whitstable?
In Whitstable, our guide for a two-storey rear extension is £2,020–£3,020 per square metre including VAT for a standard specification. South East prices run above our West Midlands baseline, mainly on labour rates and clay-soil foundations.
| Size | Guide price inc VAT |
|---|---|
| 3 m × 5 m footprint, two floors (30 m²) | £60,500–£90,500 |
| 4 m × 6 m footprint, two floors (48 m²) | £97,000–£145,000 |
Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission for a two-storey rear extension in Whitstable?
The planning route for a two-storey rear extension in Whitstable is set by England's householder rules and your council.
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. 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 Whitstable like to extend?
Commuter semis and detached houses make up much of Whitstable, and longer gardens make England's prior approval route for deeper rear extensions worth considering.
How a two-storey rear extension in Whitstable comes together
Survey visit
We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
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.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the building control completion certificate.
Two-storey rear extensions near Whitstable
We also build two-storey rear extensions in nearby Herne Bay (4.5 miles) and Canterbury (6.1 miles).
- Two-storey rear extension in Herne Bay
- Two-storey rear extension in Canterbury
- Two-storey rear extension in Faversham
- Two-storey rear extension in Sheerness
- Two-storey rear extension in Sittingbourne
Other work in Whitstable:
FAQ
Two-storey rear extension questions in Whitstable
Do you handle building control in Whitstable?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
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.
Will we need to move out?
Rarely. The first-floor opening is made late in the job and sealed with temporary screens.
What postcode areas do you cover around Whitstable?
Including CT5, and the surrounding Kent 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.
How long does a rear extension take to build in Whitstable?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.