Newton-le-Willows, Merseyside
Rear extension planning drawings in Newton-le-Willows
Thinking about a rear extension in Newton-le-Willows? 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.
Newton-le-Willows and its postcode districts WA12 are part of our Merseyside coverage. For Newton-le-Willows 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 Newton-le-Willows?
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 Newton-le-Willows?
Whether your rear extension in Newton-le-Willows needs a planning application depends on its size, your house and any local restrictions.
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.
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 Newton-le-Willows like to extend?
Stone and brick terraces are common around Newton-le-Willows. Where houses back onto a ginnel or alley, deliveries can come in from the rear, which makes the build tidier.
How a rear extension in Newton-le-Willows 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.
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 Newton-le-Willows
We also build rear extensions in nearby Golborne (1.9 miles) and Ashton in Makerfield (3.1 miles).
- Rear extension planning drawings in Golborne
- Rear extension planning drawings in Ashton in Makerfield
- Rear extension planning drawings in Haydock
- Rear extension planning drawings in Warrington
- Rear extension planning drawings in Abram
Other work in Newton-le-Willows:
FAQ
Rear extension planning drawings questions in Newton-le-Willows
Do you handle building control in Newton-le-Willows?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
What postcode areas do you cover around Newton-le-Willows?
Including WA12, and the surrounding Merseyside area.
Do neighbours get consulted?
Yes for a full application: the council writes to them or puts up a site notice.
How long does a rear extension take to build in Newton-le-Willows?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Do I need planning permission for a rear extension in Newton-le-Willows?
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.
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.