Utility and boot room extensions for homes in Rhondda
From the first sketch to final sign-off, we plan and build utility room extensions in Rhondda and the surrounding Mid Glamorgan area.
- Guide price in RhonddaFrom £13,000 inc VAT
- PlanningWelsh permitted development rules (rear up to 4 m)
- Build time6–10 weeks on site
- Postcode districtsCF40, CF41, CF42, CF43

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.
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.
Building over or within 3 m of a public sewer needs the water company's consent before the foundations go in.
Applications are decided by the local planning authority (your county or county borough council, or the national park authority).
Guide prices for Rhondda
These guide figures apply our Wales adjustment (×0.93) to national rates. They include VAT at 20% and cover the build itself; design and council fees are listed separately.
Typical rates in Rhondda: £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 |
Try the guide-price tool to see a range for your own size and finish.
Covering Rhondda
Site visits are available across Rhondda (CF40, CF41, CF42, CF43). We also work in nearby Tonypandy (3 miles), Aberdare (4 miles), Pontypridd (6 miles), Merthyr Tydfil (7 miles).
Just over the Gwent border, Ebbw Vale is about 13 miles away. 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.
What we take care of
- Ventilation for a tumble dryer
- Back door and a hard-wearing floor
- Waste and water connections
- Design around appliances, sink and storage
- Built-in storage or space ready for your units
How the project works
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
We visit your Rhondda home, measure up, talk through what you want and check the planning position.
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.
Your questions about a utility room extension in Rhondda
Do you cover all of Rhondda?
Yes. We cover Rhondda and the surrounding parts of Mid Glamorgan. Site visits are free and there is no obligation.
Do I need building regulations approval in Rhondda?
Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.
Who do I contract with for a utility room extension in Rhondda?
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.
Can a utility have a toilet?
Yes, space permitting. A WC needs drainage and extraction, which we plan into the design.
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 Rhondda.
Book a free site visit in Rhondda
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.