Planning a driveway extension in Carmarthen
In and around Carmarthen, village-style frontages sit alongside newer cul-de-sacs, so the right block often depends on the age of the house.
Wales is wetter than most of England, and new front paving has to be permeable or drain within the property, so drainage is designed in from the start.
How much does a driveway extension cost in Carmarthen?
In Wales, a driveway extension usually costs £85–£140 per m² including VAT. For a 15 m² extension, that is roughly £1,450–£2,400. Your exact price depends on what the survey or your photos show, and is fixed in writing before anything is booked.
| 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
A driveway extension adds paving to an existing drive, usually to fit a second car by taking in part of the front lawn, or to lengthen a drive towards the house or garage. The new section is built on its own sub-base and tied into the old paving so the two act as one surface.
- Joint sand, compaction and a clean-down of the old section
- New edging, kerbs or a low retaining edge where the lawn is cut back
- Matching options: same range, re-mixing old and new, or a planned contrast
- Old edge restraint taken out and the new paving toothed into the old pattern
- Check of the existing drive: block range, thickness, levels and condition
What the survey covers
- Whether front-garden planning rules apply
- The kerb: is it already dropped, and is it wide enough?
- Block range, thickness, colour and pattern to suit the house
- Levels against the damp-proof course (the finished paving must sit at least 150 mm below it)
- Where rain will go: falls, lawn, border, channel or soakaway
Rules for front drives in Carmarthen
Carmarthen 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.
What happens next
Tell us about the job
Use the form, the quote tool, WhatsApp or a call.
We take a look
A survey visit, or photos for smaller repair and cleaning jobs.
Price in writing
Every line itemised, including the dig, edging and drainage.
Booked and built
Agreed start date, then the work, the final clean-down and the joint top-up.
What you can expect from us
Honest timescales
We tell you how long the job takes and what can delay it, such as approvals and weather.
Water planned first
Falls, channels and soakaways are designed before the pattern is chosen.
Edges set in concrete
Every edge restraint is bedded and haunched, so the paving cannot creep.
Itemised quotes
Break-out, waste, edging, drainage and covers are separate lines you can see.
Drive extensions in Carmarthen: questions
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.
Is the survey in Carmarthen 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.
Do I need planning permission for a driveway extension in Carmarthen?
In Wales, new front paving should be permeable or drain within your boundary to avoid planning permission, and drives of 100 m² or more need SuDS approval. Ask us on the survey if you are unsure.
Can you match the blocks to my house in Carmarthen?
We bring samples to the survey and suggest blocks and borders that suit the age and brick of the house. Final colour is your choice.
Drive extensions near Carmarthen
Nearby towns we cover for drive extensions, and drive extensions across Dyfed:
