Barry, Cardiff and the Vale
Rear extension planning drawings in Barry
For homes in Barry, a rear extension is often the simplest way to gain space without moving. Measured survey, design options, planning drawings and the application, handled for you. We take it from survey to completion certificate.
We cover Barry (CF62 and CF63) as part of our Cardiff and the Vale work. Rear extension applications in Cardiff and the Vale 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 Barry?
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. We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
Do you need planning permission for a rear extension in Barry?
Planning for a rear extension in Barry follows the Welsh householder rules.
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. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Barry like to extend?
Older terraces near the centre and post-war semis further out are typical of Barry. Sloping sites are common in Wales, so floor levels and retaining walls are designed at the start.
How a rear extension in Barry 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.
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.
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 Barry
Neighbouring places we cover include Penarth (5.5 miles) and Cardiff (7.1 miles).
- Rear extension planning drawings in Penarth
- Rear extension planning drawings in Cardiff
- Rear extension planning drawings in Whitchurch
- Rear extension planning drawings in Llantwit Major
- Rear extension planning drawings in Rhiwbina
Other work in Barry:
FAQ
Rear extension planning drawings questions in Barry
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 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.
What if planning is refused?
We review the reasons with you, amend and resubmit or appeal.
What postcode areas do you cover around Barry?
Including CF62 and CF63, and the surrounding Cardiff and the Vale area.
How long does a rear extension take to build in Barry?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Is the site visit in Barry free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.