South Wales Valleys
Rear extension plans and planning applications in the South Wales Valleys
Measured survey, design options, planning drawings and the application, handled for you. Across the South Wales Valleys we handle the whole rear extension: survey, drawings, the planning route, building control and the build. Towns we cover here include Rhondda, Tonypandy and Bridgend.
Rear extension applications in the South Wales Valleys are householder applications, which councils aim to decide within about eight weeks. Stone terraces along the valley floors and post-war semis higher up are typical of the South Wales Valleys. Sloping sites are common, so floor levels and retaining walls are designed at the start.
What does it cost in the South Wales Valleys?
As a guide, £1,000–£2,500 including VAT. Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission in the South Wales Valleys?
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.
Conservation areas, National Parks and National Landscapes restrict permitted development in Wales, and listed buildings need listed building consent.
Planning fees in Wales are set by the Welsh Government; we confirm the current householder fee when we prepare the application.
Welsh councils aim to decide householder applications within 8 weeks.
Where in the South Wales Valleys do we work?
FAQ
Questions people ask
Do I need an architect?
You need accurate drawings by someone who knows householder planning; we provide them.
Can I see the design in 3D?
Yes; we produce simple 3D views so you can judge the size and light.
What if planning is refused?
We review the reasons with you, amend and resubmit or appeal.
Do you cover all of the South Wales Valleys?
We cover 27 towns and districts in the South Wales Valleys, including Rhondda, Tonypandy and Bridgend.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.