Mildenhall, Suffolk
Rear extension planning drawings in Mildenhall
Thinking about a rear extension in Mildenhall? 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.
Mildenhall sits in Suffolk, with postcode districts including IP28. Rear extension applications in Suffolk are householder applications, which councils aim to decide within about eight weeks.
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 Mildenhall?
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 Mildenhall?
Whether your rear extension in Mildenhall 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. At the first visit we measure what is there now and tell you which route fits: permitted development, prior approval or a planning application.
What are homes in Mildenhall like to extend?
Mildenhall mixes Victorian terraces with 1930s semis, so both side returns and full-width kitchen extensions suit houses here.
How a rear extension in Mildenhall 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.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
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 Mildenhall
Close by, we work in Newmarket, about 8.2 miles away, and Bury St Edmunds, about 10.8 miles away.
- Rear extension planning drawings in Newmarket
- Rear extension planning drawings in Bury St Edmunds
- Rear extension planning drawings in Ely
- Rear extension planning drawings in Thetford
- Rear extension planning drawings in Haverhill
Other work in Mildenhall:
FAQ
Rear extension planning drawings questions in Mildenhall
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 Mildenhall house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Do I need an architect?
You need accurate drawings by someone who knows householder planning; we provide them.
Do you handle building control in Mildenhall?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
How long does a rear extension take to build in Mildenhall?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
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.