South Benfleet, Essex
Two-storey rear extension in South Benfleet
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 South Benfleet and the surrounding area, with one contract from the first survey to building control sign-off.
South Benfleet and its postcode districts SS7, SS8 and SS13 are part of our Essex coverage. Two-storey rear extensions suit semi-detached houses in South Benfleet 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 South Benfleet?
A two-storey rear extension in South Benfleet is priced at £1,910–£2,860 per square metre including VAT as a guide, before kitchen fit-out and fees. East of England prices run slightly above our West Midlands baseline; clay soils near trees are the main foundation variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m × 5 m footprint, two floors (30 m²) | £57,000–£86,000 |
| 4 m × 6 m footprint, two floors (48 m²) | £91,500–£137,500 |
Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission for a two-storey rear extension in South Benfleet?
Here is how the rules in England apply to a two-storey rear extension in South Benfleet.
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 South Benfleet like to extend?
Post-war semis and newer estates are typical of South Benfleet, and many have room for a full-width extension. Shrinkable clay is common in the East of England, so foundations near trees and hedges are designed to NHBC-style depth guidance.
How a two-storey rear extension in South Benfleet 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.
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.
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 South Benfleet
We also build two-storey rear extensions in nearby Hadleigh (2.2 miles) and Pitsea (2.3 miles).
- Two-storey rear extension in Hadleigh
- Two-storey rear extension in Pitsea
- Two-storey rear extension in Canvey Island
- Two-storey rear extension in Rayleigh
- Two-storey rear extension in Wickford
Other work in South Benfleet:
FAQ
Two-storey rear extension questions in South Benfleet
What postcode areas do you cover around South Benfleet?
Including SS7, SS8 and SS13, and the surrounding Essex area.
Can you match the brick or stone on my South Benfleet house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
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.
How long does a rear extension take to build in South Benfleet?
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 two-storey rear extension cost in South Benfleet?
As a guide, £1,910–£2,860 per square metre including VAT for a standard specification. For example, 3 m × 5 m footprint, two floors (30 m²): about £57,000–£86,000 at that rate. Your written price follows the survey.
Is the site visit in South Benfleet free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.