Clacton-on-Sea, Essex
Two-storey rear extension in Clacton-on-Sea
Two-storey rear extension in Clacton-on-Sea: 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.
Clacton-on-Sea sits in Essex, with postcode districts including CO15. In Clacton-on-Sea, 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 Clacton-on-Sea?
In Clacton-on-Sea, 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 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a two-storey rear extension in Clacton-on-Sea?
Here is how the rules in England apply to a two-storey rear extension in Clacton-on-Sea.
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. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Clacton-on-Sea like to extend?
Post-war semis and newer estates are typical of Clacton-on-Sea, 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. Two-storey rear extensions suit semi-detached houses in Clacton-on-Sea best, where the extra bedroom matters as much as the bigger kitchen.
How a two-storey rear extension in Clacton-on-Sea 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.
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 Clacton-on-Sea
Close by, we work in Frinton-on-Sea, about 4.7 miles away, and Walton-on-the-Naze, about 6.2 miles away.
- Two-storey rear extension in Frinton-on-Sea
- Two-storey rear extension in Walton-on-the-Naze
- Two-storey rear extension in Harwich
- Two-storey rear extension in Colchester
- Two-storey rear extension in Felixstowe
Other work in Clacton-on-Sea:
FAQ
Two-storey rear extension questions in Clacton-on-Sea
Do I need planning permission for a rear extension in Clacton-on-Sea?
Often not for a single-storey rear extension of up to 3 metres (4 metres on a detached house) under permitted development, or up to 6 or 8 metres with prior approval, unless the house is in a conservation area or its rights have been removed.
Who will build my extension?
Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.
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.
Can you match the brick or stone on my Clacton-on-Sea house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
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 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.