Extending your home in Maesteg
Every type of house extension in Maesteg, from single-storey kitchen extensions to two-storey additions, side returns and orangeries. We design, handle the approvals and build.
- Postcode districtsCF34
- Price regionWales (×0.93)
- Planning rulesWales
- Site visitFree, no obligation

Covering Maesteg and nearby
Our survey diary covers Maesteg, including CF34. Neighbouring towns we cover include Bridgend (8 miles), Tonypandy (9 miles), Porthcawl (9 miles), Rhondda (10 miles), Aberdare (12 miles). For homes towards West Glamorgan, Briton Ferry is around 7 miles away.
What works best for Maesteg houses?
In Wales, terraced houses with rear offshoots are common in the towns, while detached houses and bungalows dominate in rural areas.
Depending on the plot, bungalow extensions and side return extensions are often the strongest options, with single-storey rear extensions worth considering where there is room.
What extensions cost in Maesteg
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) |
|---|---|---|
| Side return extensions | 11 m² | £24,500 – £31,000 |
| Extensions over a garage | 12 m² | £23,000 – £30,500 |
| Wraparound extensions | 25 m² | £53,000 – £67,500 |
| Double-storey extensions | 32 m² | £53,500 – £70,000 |
| Conservatory replacement extensions | 14 m² | £27,500 – £36,000 |
Do extensions in Maesteg need planning permission?
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.
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).
Choose an extension type
- Utility and boot room extensions · from £13,000
- Orangery extensions · from £27,500
- Side extensions · from £20,000
- Building regulations for extensions · from £800
- Kitchen extensions · from £25,000
- Double-storey extensions · from £35,000
- Wraparound extensions · from £33,000
- Planning permission for extensions · from £300
- Side return extensions · from £16,500
- Bungalow extensions · from £24,000
- Conservatory replacement extensions · from £18,500
- Extensions over a garage · from £22,000
- Flat roof extensions · from £19,500
- Extension plans and drawings · from £1,100
- Porch extensions · from £3,700
- Pitched roof extensions · from £20,500
- Timber frame extensions · from £19,500
- Home office extensions · from £14,500
- Glass box extensions · from £27,500
- Bedroom extensions · from £24,000
- Single-storey rear extensions · from £19,500
- Annexe extensions · from £51,000
Free site visit
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
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
You receive a written, itemised price and programme. Nothing starts until you are happy with it.
Build and sign-off
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Questions about extensions in Maesteg
How much does an extension cost in Maesteg?
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.
Do you cover all of Maesteg?
Yes, including the surrounding parts of Mid Glamorgan. Site visits are free and there is no obligation.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Maesteg, and the guide-price tool gives a range for your own size and finish in about a minute.
How long does an extension take in Maesteg?
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.
Book a free site visit in Maesteg
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.