Utility and boot room extensions for homes in Mid Glamorgan
Mid Glamorgan homeowners can use us for the whole utility room extension project: survey, design, planning or permitted development checks, building regulations and the build itself.
- Guide priceFrom £13,000 inc VAT
- PlanningWelsh permitted development rules (rear up to 4 m)
- Towns covered12
- Site visitFree, no obligation

Towns in Mid Glamorgan
What we take care of
- Waste and water connections
- Design around appliances, sink and storage
- Ventilation for a tumble dryer
- Built-in storage or space ready for your units
- Back door and a hard-wearing floor
A good utility works like a back-of-house corridor: in from the garden, boots off, coats on hooks, washing on the way through. We plan the door positions so it doesn't become another room to walk around.
Will the council need to approve it?
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.
The planning position for a specific Mid Glamorgan address depends on its history and any designations, which is why we check it at the first visit.
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.
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).
Guide prices for Mid Glamorgan
Prices below are for Mid Glamorgan, using the Wales factor of ×0.93. They are guide ranges including VAT for the build only, not a quote.
Typical rates in Mid Glamorgan: £1,770 to £3,260 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 2 m × 2.5 m 5 m² | £13,000 – £15,500 | £13,000 – £16,500 | £13,000 – £16,500 |
| 2.5 m × 3.2 m 8 m² | £14,000 – £17,000 | £16,500 – £21,000 | £20,500 – £26,500 |
| 3 m × 3.6 m 11 m² | £19,000 – £23,500 | £23,000 – £29,000 | £28,500 – £36,000 |
Want a range for your exact size? The guide-price tool takes about a minute.
Covering Mid Glamorgan
Towns we cover in Mid Glamorgan include Rhondda, Tonypandy, Bridgend, Merthyr Tydfil, Pontypridd, Aberdare, Caerphilly, Maesteg. In Wales, terraced houses with rear offshoots are common in the towns, while detached houses and bungalows dominate in rural areas.
From first visit to completion
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
Free site visit
It starts with a visit to your house to measure, check access and talk through ideas and budget.
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.
Utility room extension questions answered
Do I need building regulations approval in Mid Glamorgan?
Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.
Do you cover all of Mid Glamorgan?
Yes, across the whole of Mid Glamorgan. Site visits are free and there is no obligation.
Can I see a price before committing to anything?
Yes. The guide prices on this page are adjusted for Mid Glamorgan, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.
How much does a utility room extension cost?
Our guide range is about £1,770 to £3,260 per m² including VAT, with a minimum of around £13,500. An 8 m² standard-spec utility is typically £16,500 to £21,000 in Mid Glamorgan.
Does a utility extension need planning permission?
Often not, if it is single storey and within permitted development limits. We check this for your property.
Book a free site visit in Mid Glamorgan
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.