Bridgend house extensions
More space without moving: we plan and build extensions across Bridgend, with one team for the drawings, the council and the build.
- Postcode districtsCF31, CF35
- Price regionWales (×0.93)
- Planning rulesWales
- Site visitFree, no obligation
Guide prices for Bridgend
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 |
| Conservatory replacement extensions | 14 m² | £27,500 – £36,000 |
| Orangery extensions | 16 m² | £41,500 – £52,500 |
| Single-storey rear extensions | 20 m² | £38,000 – £48,500 |
| Side return extensions | 11 m² | £24,500 – £31,000 |
Bridgend and surrounding towns
Across CF31, CF35, we can visit, measure and advise. We also work in nearby Porthcawl (6 miles), Maesteg (8 miles), Tonypandy (10 miles), Rhondda (12 miles), Pontypridd (12 miles). Cowbridge, in South Glamorgan, is roughly 6 miles from Bridgend and also on our list.
What works best for Bridgend houses?
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.
For many houses here, side return extensions, bungalow extensions or pitched roof extensions gives the most useful space for the budget.
Planning and building control in Bridgend
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 rear extension of more than one storey can be permitted development only if the ground floor projects no more than 4 m, the upper floor no more than 3 m, it stays at least 10.5 m from the rear boundary and it is not in a conservation area, national park, National Landscape or World Heritage Site. Anything larger needs a planning application to the council.
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.
The Party Wall etc. Act 1996 applies in Wales as in England: notice must be served before work to a shared wall, building on the boundary, or excavating close to a neighbour's foundations.
Applications are decided by the local planning authority (your county or county borough council, or the national park authority).
All extension types we build in Bridgend
- Annexe extensions · from £51,000
- Home office extensions · from £14,500
- Side return extensions · from £16,500
- Bedroom extensions · from £24,000
- Glass box extensions · from £27,500
- Single-storey rear extensions · from £19,500
- Kitchen extensions · from £25,000
- Extensions over a garage · from £22,000
- Timber frame extensions · from £19,500
- Orangery extensions · from £27,500
- Side extensions · from £20,000
- Flat roof extensions · from £19,500
- Pitched roof extensions · from £20,500
- Bungalow extensions · from £24,000
- Porch extensions · from £3,700
- Wraparound extensions · from £33,000
- Building regulations for extensions · from £800
- Utility and boot room extensions · from £13,000
- Conservatory replacement extensions · from £18,500
- Double-storey extensions · from £35,000
- Extension plans and drawings · from £1,100
- Planning permission for extensions · from £300
Free site visit
A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.
Design and approvals
We produce the drawings and structural design, and manage the approvals so they are in place before work starts.
Fixed written price
With the design and specification agreed, you get a fixed written price and a start date.
Build and sign-off
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Questions about extensions in Bridgend
How much does an extension cost in Bridgend?
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.
How long does an extension take in Bridgend?
Usually 2 to 4 months of design and approvals, then 10 to 16 weeks on site for a single-storey extension or 16 to 24 weeks for two storeys.
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.
Do I need planning permission for an extension in Bridgend?
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 Bridgend
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.