Clacton-on-Sea, Essex
Rear extension planning drawings in Clacton-on-Sea
Thinking about a rear extension in Clacton-on-Sea? Measured survey, design options, planning drawings and the application, handled for you. Our team handles the drawings, the planning route and the build, and your contract is with one company throughout.
We cover Clacton-on-Sea (CO15) as part of our Essex work. For Clacton-on-Sea homes we start with a measured survey, then draw options before anything is submitted.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
What do rear extension planning drawings cost in Clacton-on-Sea?
As a guide, £1,000–£2,500 including VAT for a single-storey rear extension, or £2,000–£3,500 for a two-storey scheme. A householder planning application in England costs £548 (£575 for applications made from 8 December 2026), and a lawful development certificate for proposed work costs half the householder fee. 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 rear extension in Clacton-on-Sea?
Planning for a rear extension in Clacton-on-Sea follows the English householder rules.
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.
Councils aim to decide householder applications within 8 weeks of validation, and prior approval within 42 days.
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 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.
How a rear extension in Clacton-on-Sea comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
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.
Rear extension planning drawings near Clacton-on-Sea
From Clacton-on-Sea, the nearest places we also cover are Frinton-on-Sea (4.7 miles) and Walton-on-the-Naze (6.2 miles).
- Rear extension planning drawings in Frinton-on-Sea
- Rear extension planning drawings in Walton-on-the-Naze
- Rear extension planning drawings in Harwich
- Rear extension planning drawings in Colchester
- Rear extension planning drawings in Felixstowe
Other work in Clacton-on-Sea:
FAQ
Rear extension planning drawings 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.
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 if planning is refused?
We review the reasons with you, amend and resubmit (often free of a second fee within 12 months in England) or appeal.
How long does a rear extension take to build in Clacton-on-Sea?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
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.
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.