Porthcawl house extensions
Looking to extend your home in Porthcawl? Start here: extension types, guide prices for Porthcawl, the planning rules that apply and how a project runs.
- Postcode districtsCF36
- Price regionWales (×0.93)
- Planning rulesWales
- Site visitFree, no obligation
Planning and building control in Porthcawl
In Wales a single-storey rear extension can usually project up to 4 m beyond the rear wall without a planning application, if it is no more than 4 m high, keeps eaves to 3 m and overall height to 4 m within 2 m of a boundary, and covers no more than half the land around the original house. Wales has no larger home extension prior approval scheme.
In Wales a single-storey side return can fall within permitted development if it stays within the 4 m height limit and the width rules for side extensions. Conservation areas and listed buildings need consent, and the Party Wall Act applies to work on or near a shared wall.
In a conservation area, national park, National Landscape or World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.
Building regulations approval is separate from planning. Wales has its own building regulations and approved documents; the council or a registered building control approver checks the plans, inspects the work and issues a completion certificate.
Applications are decided by the local planning authority (your county or county borough council, or the national park authority).
Choosing the right extension in Porthcawl
In Wales, terraced houses with rear offshoots are common in the towns, while detached houses and bungalows dominate in rural areas.
For many houses here, bungalow extensions, pitched roof extensions or single-storey rear extensions gives the most useful space for the budget.
Areas we cover around Porthcawl
Postcode districts we cover around Porthcawl include CF36. The same team covers Bridgend (6 miles), Maesteg (9 miles), Tonypandy (15 miles), Rhondda (17 miles), Pontypridd (18 miles), all within easy reach. Cowbridge, in South Glamorgan, is roughly 11 miles from Porthcawl and also on our list.
Porthcawl extension prices at a glance
Prices on this page use our Wales factor of ×0.93, include VAT at 20% and cover the build; your written price follows a survey and agreed drawings.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Double-storey extensions | 32 m² | £53,500 – £70,000 |
| Kitchen extensions | 20 m² | £39,000 – £49,500 |
| Single-storey rear extensions | 20 m² | £38,000 – £48,500 |
| Wraparound extensions | 25 m² | £53,000 – £67,500 |
| Extensions over a garage | 12 m² | £23,000 – £30,500 |
| Orangery extensions | 16 m² | £41,500 – £52,500 |
Every extension type in Porthcawl
- Single-storey rear extensions · from £19,500
- Pitched roof extensions · from £20,500
- Bungalow extensions · from £24,000
- Planning permission for extensions · from £300
- Kitchen extensions · from £25,000
- Double-storey extensions · from £35,000
- Side extensions · from £20,000
- Glass box extensions · from £27,500
- Timber frame extensions · from £19,500
- Wraparound extensions · from £33,000
- Porch extensions · from £3,700
- Home office extensions · from £14,500
- Orangery extensions · from £27,500
- Conservatory replacement extensions · from £18,500
- Extension plans and drawings · from £1,100
- Utility and boot room extensions · from £13,000
- Flat roof extensions · from £19,500
- Annexe extensions · from £51,000
- Side return extensions · from £16,500
- Extensions over a garage · from £22,000
- Building regulations for extensions · from £800
- Bedroom extensions · from £24,000
Free site visit
We visit your Porthcawl home, measure up, talk through what you want and check the planning position.
Design and approvals
Once the layout is agreed, we deal with the council: planning permission or written confirmation that none is needed, plus building control.
Fixed written price
With the design and specification agreed, you get a fixed written price and a start date.
Build and sign-off
The build is managed from start to finish, inspected at each stage and signed off on completion.
Questions about extensions in Porthcawl
How much does an extension cost in Porthcawl?
Using our Wales factor (×0.93), a standard-spec single-storey extension of 20 m² is a guide £38,000 to £48,500 including VAT, and a 32 m² two-storey extension £53,500 to £70,000. Your written price follows the survey.
Who do I contract with?
Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.
Will my neighbours need to be told?
If you apply for planning the council notifies them, and in Wales party wall notices may be needed for work near a shared boundary.
Do I need planning permission for an extension in Porthcawl?
Not always. It depends on the size, position and your property's history. In Wales many single-storey rear extensions up to 4 m are permitted development.
Book a free site visit in Porthcawl
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.