Extending your home in Clydach
Looking to extend your home in Clydach? Start here: extension types, guide prices for Clydach, the planning rules that apply and how a project runs.
- Postcode districtsSA6, SA7
- Price regionWales (×0.93)
- Planning rulesWales
- Site visitFree, no obligation
Popular extension prices in Clydach
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) |
|---|---|---|
| Extensions over a garage | 12 m² | £23,000 – £30,500 |
| Orangery extensions | 16 m² | £41,500 – £52,500 |
| Kitchen extensions | 20 m² | £39,000 – £49,500 |
| Conservatory replacement extensions | 14 m² | £27,500 – £36,000 |
| Side return extensions | 11 m² | £24,500 – £31,000 |
| Double-storey extensions | 32 m² | £53,500 – £70,000 |
Areas we cover around Clydach
Postcode districts we cover around Clydach include SA6, SA7. Nearby, we also take on projects in Neath (4 miles), Swansea (5 miles), Briton Ferry (5 miles), Gorseinon (6 miles). Just over the Dyfed border, Ammanford is about 8 miles away.
Planning and building control in Clydach
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 extension can be permitted development if it is no more than 4 m high and no wider than half the width of the original house, and it must not come closer to a highway than the existing side wall. Larger side extensions need planning permission.
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).
Which extension suits a Clydach home?
Welsh housing ranges from stone terraces in the valleys to render-and-slate houses and modern estates, and the Welsh planning rules differ from England's in several places.
The types we would usually look at first for a home in Clydach are pitched roof extensions, single-storey rear extensions and bungalow extensions, depending on the garden and how the house is laid out.
Choose an extension type
- Utility and boot room extensions · from £13,000
- Single-storey rear extensions · from £19,500
- Kitchen extensions · from £25,000
- Bedroom extensions · from £24,000
- Porch extensions · from £3,700
- Pitched roof extensions · from £20,500
- Flat roof extensions · from £19,500
- Building regulations for extensions · from £800
- Conservatory replacement extensions · from £18,500
- Side return extensions · from £16,500
- Annexe extensions · from £51,000
- Timber frame extensions · from £19,500
- Extensions over a garage · from £22,000
- Double-storey extensions · from £35,000
- Wraparound extensions · from £33,000
- Planning permission for extensions · from £300
- Extension plans and drawings · from £1,100
- Side extensions · from £20,000
- Home office extensions · from £14,500
- Orangery extensions · from £27,500
- Bungalow extensions · from £24,000
- Glass box extensions · from £27,500
Free site visit
A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.
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 Clydach
How much does an extension cost in Clydach?
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.
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.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Clydach, and the guide-price tool gives a range for your own size and finish in about a minute.
Do you cover all of Clydach?
Yes, including the surrounding parts of West Glamorgan. Site visits are free and there is no obligation.
Book a free site visit in Clydach
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.