Chafford Hundred, Essex
Two-storey rear extension in Chafford Hundred
A larger kitchen downstairs and an extra bedroom or bathroom upstairs, under one roof. If you live in Chafford Hundred and want to know what a two-storey rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
We cover Chafford Hundred (RM15, RM17 and RM20) as part of our Essex work. In Chafford Hundred, 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 Chafford Hundred?
In Chafford Hundred, our guide for a two-storey rear extension is £1,910–£2,860 per square metre including VAT for a standard specification. 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 Chafford Hundred?
Here is how the rules in England apply to a two-storey rear extension in Chafford Hundred.
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 Chafford Hundred like to extend?
Chafford Hundred mixes Victorian terraces with 1930s semis, so both side returns and full-width kitchen extensions suit houses here.
How a two-storey rear extension in Chafford Hundred 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.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Two-storey rear extensions near Chafford Hundred
We also build two-storey rear extensions in nearby South Ockendon (1.4 miles) and Grays (1.6 miles).
- Two-storey rear extension in South Ockendon
- Two-storey rear extension in Grays
- Two-storey rear extension in Swanscombe
- Two-storey rear extension in Tilbury
- Two-storey rear extension in Dartford
Other work in Chafford Hundred:
FAQ
Two-storey rear extension questions in Chafford Hundred
Do you handle building control in Chafford Hundred?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
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.
Will we need to move out?
Rarely. The first-floor opening is made late in the job and sealed with temporary screens.
Is the site visit in Chafford Hundred free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Can I live at home while the extension is built?
Usually yes. Most of the work is outside until the back wall is opened near the end, and that stage is screened off.
Can you match the brick or stone on my Chafford Hundred house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.