Deeside, North Wales
Rear extension planning drawings in Deeside
Measured survey, design options, planning drawings and the application, handled for you. If you live in Deeside and want to know what a rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
We cover Deeside (CH5) as part of our North Wales work. Planning applications in Deeside go to the local planning authority covering Deeside, and we check its local design guidance for rear extensions before drawing.
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 Deeside?
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. Planning fees in Wales are set by the Welsh Government; we confirm the current householder fee when we prepare the application. 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 Deeside?
Whether your rear extension in Deeside needs a planning application depends on its size, your house and any local restrictions.
Welsh rules allow a two-storey rear extension without an application only where the ground floor is no deeper than 4 metres, the upper floor no deeper than 3 metres and at least 10.5 metres remains to the rear boundary. Most homeowners still apply for householder planning permission.
Welsh councils aim to decide householder applications within 8 weeks.
Conservation areas, National Parks and National Landscapes restrict permitted development in Wales, and listed buildings need listed building consent. At the first visit we measure what is there now and tell you which route fits: permitted development or a householder planning application.
What are homes in Deeside like to extend?
Older terraces near the centre and post-war semis further out are typical of Deeside. Sloping sites are common in Wales, so floor levels and retaining walls are designed at the start.
How a rear extension in Deeside 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.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Approvals
Permitted development check or householder planning application, then Building Regulations drawings to the Welsh Approved Documents and structural calculations, plus party wall notices where they apply.
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 Deeside
Close by, we work in Buckley, about 3.0 miles away, and Blacon, about 4.7 miles away.
- Rear extension planning drawings in Buckley
- Rear extension planning drawings in Blacon
- Rear extension planning drawings in Mold
- Rear extension planning drawings in Flint
- Rear extension planning drawings in Neston
Other work in Deeside:
FAQ
Rear extension planning drawings questions in Deeside
How long does a rear extension take to build in Deeside?
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 a party wall agreement?
In Wales, usually yes if the extension is on or near a shared boundary or close to a neighbour's foundations. We serve the notices.
Can I see the design in 3D?
Yes; we produce simple 3D views so you can judge the size and light.
Can you match the brick or stone on my Deeside house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Do you handle building control in Deeside?
Yes. We apply to the council or a registered approver under the Welsh regulations and hand over the completion certificate.
What do rear extension planning drawings cost in Deeside?
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.