What to know before a driveway extension in Llantrisant
Around Llantrisant, plots are often larger and drives longer, so edging, falls and the route the water takes need planning.
Hilly streets in much of Wales mean many drives slope, which shapes the falls, the edging and the water route.
How much does a driveway extension cost in Llantrisant?
Most driveway extension quotes in Wales fall within £85–£140 per m² including VAT. A 15 m² extension would usually be about £1,450–£2,400, with any extras listed separately on your quote.
| Item | Guide price inc VAT |
|---|---|
| Driveway extension in block paving | £85–£140 per m² |
| Breaking out an old surface | £9.50–£35 per m² |
| Edging or kerb, bedded and haunched | £19–£45 per metre |
| Typical channel drain run | £330–£930 |
| Dropped kerb (vehicle crossover) construction | £930–£2,800 |
Guide figures for Wales, checked 9 November 2026. See all prices or use the guide price tool.
What you get with our drive extensions service
The hard part is the join. Blocks from the same range can differ in shade from a batch made years ago, and older blocks have weathered, so the survey looks at whether a close match is possible, whether lifting and re-mixing some existing blocks will help, or whether a deliberate border or contrasting panel will look better than a near-miss.
- New edging, kerbs or a low retaining edge where the lawn is cut back
- Dig-out and sub-base for the new area
- Matching options: same range, re-mixing old and new, or a planned contrast
- Check of the existing drive: block range, thickness, levels and condition
- Old edge restraint taken out and the new paving toothed into the old pattern
Before we price your driveway extension
- Where an electric vehicle charger cable might run
- The kerb: is it already dropped, and is it wide enough?
- Where rain will go: falls, lawn, border, channel or soakaway
- Whether front-garden planning rules apply
- Existing manhole and inspection covers, and whether to recess them
Rules for front drives in Llantrisant
Llantrisant is in Wales, so these rules apply:
In Wales, any new or replacement hard surface at the front of a house should be permeable or drain to a permeable area within the property to avoid needing planning permission. Unlike England, there is no 5 m² allowance for new paving; only repairs of up to 5 m² of existing surface are exempt.
Since January 2019, construction work covering 100 m² or more with drainage implications, including drives and patios, needs approval from the local SuDS Approving Body (SAB) before work starts, even where planning permission is not needed.
A dropped kerb needs your council's approval as highway authority, and a new access onto a classified road needs planning permission.
General guidance, not legal advice. Your survey confirms what applies to your home. See the planning guide.
From enquiry to finished paving
Quick details
Your postcode and the job. It takes a minute.
On-site check
Measurements, levels against the damp-proof course, ground and drainage.
Itemised quote
Fixed once the specification is agreed, with no vague extras.
Laid and finished
Compacted, jointed and handed back clean.
How we work
Repair before replace
If your drive can be fixed or re-laid, we will say so.
Water planned first
Falls, channels and soakaways are designed before the pattern is chosen.
Honest timescales
We tell you how long the job takes and what can delay it, such as approvals and weather.
Itemised quotes
Break-out, waste, edging, drainage and covers are separate lines you can see.
Drive extensions in Llantrisant: questions
Is the survey in Llantrisant free?
Yes, for new paving here: the survey and written quote are free with no obligation. Repairs and cleaning are usually priced from photos, or from a short visit where needed.
What happens to my old drive?
It is broken out and taken away by skip or grab lorry, listed as its own line on your quote.
How long does a driveway extension take to build?
Most homes take between three and seven working days, depending on size, the dig and the drainage. Your quote gives the expected duration.
Do you cover Tonyrefail, Pontypridd and Pencoed?
Yes. We cover Llantrisant and the places around it, including Tonyrefail, Pontypridd and Pencoed, and the rest of Mid Glamorgan.
Drive extensions near Llantrisant
Nearby towns we cover for drive extensions, and drive extensions across Mid Glamorgan:
- Drive extensions in Tonyrefail
- Drive extensions in Pontypridd
- Drive extensions in Pencoed
- Drive extensions in Tonypandy
- Drive extensions in Nelson, Mid Glamorgan
- Drive extensions in Treharris
