Saffron Walden, Essex
Rear extension planning drawings in Saffron Walden
Rear extension planning drawings in Saffron Walden: measured survey, design options, planning drawings and the application, handled for you. We measure the house, show you what the rules allow, price it in writing and build it.
Saffron Walden is covered from our Essex round, including CB10. For Saffron Walden 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 Saffron Walden?
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 Saffron Walden?
Whether your rear extension in Saffron Walden needs a planning application depends on its size, your house and any local restrictions.
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 Saffron Walden like to extend?
Post-war semis and newer estates are typical of Saffron Walden, 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 Saffron Walden 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.
Approvals
Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.
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.
Rear extension planning drawings near Saffron Walden
From Saffron Walden, the nearest places we also cover are Haverhill (9.3 miles) and Bishops Stortford (11.1 miles).
- Rear extension planning drawings in Haverhill
- Rear extension planning drawings in Bishops Stortford
- Rear extension planning drawings in Royston
- Rear extension planning drawings in Cambridge
- Rear extension planning drawings in Braintree
Other work in Saffron Walden:
FAQ
Rear extension planning drawings questions in Saffron Walden
Can you match the brick or stone on my Saffron Walden house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
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.
Do I need an architect?
You need accurate drawings by someone who knows householder planning; we provide them.
Is the site visit in Saffron Walden free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Do you handle building control in Saffron Walden?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Do I need a party wall agreement?
In England, usually yes if the extension is on or near a shared boundary or the foundations are close to a neighbour's building. We serve the notices.