Penzance utility room extensions, designed and built
We design and build utility room extensions for houses in Penzance, with a written price once the survey and design are done and one point of contact throughout.
- Guide price in PenzanceFrom £14,000 inc VAT
- PlanningOften permitted development (3–4 m), or prior approval up to 6–8 m
- Build time6–10 weeks on site
- Postcode districtsTR18
How much does a utility room extension cost in Penzance?
Prices below are for Penzance, using the South West England factor of ×1.02. They are guide ranges including VAT for the build only, not a quote.
Typical rates in Penzance: £1,940 to £3,570 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 2 m × 2.5 m 5 m² | £14,000 – £17,000 | £14,000 – £18,000 | £14,000 – £18,000 |
| 2.5 m × 3.2 m 8 m² | £15,500 – £18,500 | £18,000 – £23,000 | £22,500 – £29,000 |
| 3 m × 3.6 m 11 m² | £21,000 – £25,500 | £25,000 – £31,500 | £31,000 – £39,500 |
Try the guide-price tool to see a range for your own size and finish.
Local to Penzance
Our survey diary covers Penzance, including TR18. The same team covers Camborne (12 miles), Redruth (16 miles), Falmouth (21 miles), Truro (24 miles), all within easy reach.
For homes towards Devon, Plymouth is around 64 miles away. In the South West, local stone, render and brick vary from town to town, so matching materials is a big part of designing an extension that looks right.
Will the council need to approve it?
In England a single-storey rear extension can usually go up to 3 m beyond the original rear wall of a semi-detached or terraced house, or 4 m on a detached house, without a planning application, provided it is no more than 4 m high, keeps eaves to 3 m within 2 m of a boundary and, with other buildings, covers no more than half the land around the original house. The larger home extension prior approval scheme raises those depths to 6 m and 8 m, with neighbours notified and a 42-day decision.
The planning position for a specific Penzance address depends on its history and any designations, which is why we check it at the first visit.
If the work involves a shared wall, building on the boundary, or digging foundations within 3 m (sometimes 6 m) of a neighbour's building, the Party Wall etc. Act 1996 applies and notice must be served before work starts: two months for work to a party wall, one month for new walls on the boundary and for excavations.
Applications are decided by the local planning authority (your district, borough or unitary council).
What we take care of
- Ventilation for a tumble dryer
- Design around appliances, sink and storage
- Built-in storage or space ready for your units
- Back door and a hard-wearing floor
- Waste and water connections
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
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
You receive a written, itemised price and programme. Nothing starts until you are happy with it.
Build and sign-off
We build it with one project manager, book the building control inspections and hand over the completion certificate.
Your questions about a utility room extension in Penzance
How long does a utility room extension take to build in Penzance?
On site, typically 6 to 10 weeks once approvals are in place. Before that, allow 4–10 weeks design and approvals.
Will my neighbours in Penzance be involved?
If a planning application or prior approval is needed, the council notifies neighbours. If the work is on or near a shared boundary, party wall notices may also be needed.
Do you cover all of Penzance?
Yes. We cover Penzance and the surrounding parts of Cornwall. Site visits are free and there is no obligation.
How much does a utility room extension cost?
Our guide range is about £1,940 to £3,570 per m² including VAT, with a minimum of around £14,500. An 8 m² standard-spec utility is typically £18,000 to £23,000 in Penzance.
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 Penzance
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.