New Mills, Derbyshire
Rear extension planning drawings in New Mills
Measured survey, design options, planning drawings and the application, handled for you. We design, get the approvals for and build rear extensions in New Mills and the surrounding area, with one contract from the first survey to building control sign-off.
We cover New Mills (SK22) as part of our Derbyshire work. For New Mills 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 New Mills?
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 New Mills?
Here is how the rules in England apply to a rear extension in New Mills.
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 New Mills like to extend?
Red-brick terraces and semis are typical of New Mills. Coal-mining legacy areas in parts of the East Midlands can need a Coal Authority check before foundations are designed.
How a rear extension in New Mills 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.
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 New Mills
Neighbouring places we cover include Marple (3.3 miles) and Poynton (4.9 miles).
- Rear extension planning drawings in Marple
- Rear extension planning drawings in Poynton
- Rear extension planning drawings in Hazel Grove
- Rear extension planning drawings in Glossop
- Rear extension planning drawings in Bredbury
Other work in New Mills:
FAQ
Rear extension planning drawings questions in New Mills
What do rear extension planning drawings cost in New Mills?
As a guide, £1,000–£2,500 including VAT for a single-storey rear extension and £2,000–£3,500 for a two-storey scheme, covering the measured survey, design options and the application. The council fee is extra.
Is the site visit in New Mills free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Can I see the design in 3D?
Yes; we produce simple 3D views so you can judge the size and light.
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.
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.
Do I need planning permission for a rear extension in New Mills?
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.