New tarmac driveways in Carmarthen
Planning a new tarmac driveway in Carmarthen? We'll measure up, look at the edges and drainage, and set the specification out in writing before you commit to anything.

How much should I budget in Carmarthen?
Local guide rates for Carmarthen (Wales, about 5% below our UK midpoint):
| Item | Guide price (inc VAT) |
|---|---|
| New black tarmac drive, full dig-out and new sub-base | £57–£90 per m² |
| Example: 30 m² drive | £1,900–£3,000 |
| Example: 50 m² drive | £2,850–£4,500 |
| Example: 80 m² drive | £4,550–£7,200 |
As a 2026 guide in Carmarthen, new tarmac driveway work runs at about £57–£90 per m² including VAT, so a 50 m² drive is roughly £2,850–£4,500. Guide only; the survey confirms a fixed price.
Layer by layer
Rules that apply in Carmarthen
In Wales, new front hardstanding should be porous or drain to a permeable area within the property, and work covering 100 m² or more with drainage effects usually needs SAB approval first. Any new or widened crossing over the pavement needs approval from the council as highway authority.
Carmarthen: the local details
Carmarthen at a glance. Smaller towns such as Carmarthen are surveyed alongside nearby jobs in Dyfed.
- Postcodes
- SA31, SA33
- Area
- Dyfed
- Nearest towns
- Llanelli (13 miles), Ammanford (14 miles)
- Pricing
- Wales, about 5% below our UK midpoint
- Kerb approvals
- The council
The same service is available in Llanelli, Ammanford.
What the price covers
A new tarmac driveway is built from the ground up: the old surface and soil are dug out, a compacted stone sub-base is laid, then a hot binder course and a finer surface course are spread and rolled, and the edges are held by kerbs or blocks.
- Break out and remove the old surface and spoil
- Dig to formation level, usually around 230–250 mm below finished height
- MOT Type 1 sub-base laid and compacted in layers, about 150 mm
- Binder course (AC 20 dense), about 50–60 mm, laid hot and rolled
- Surface course (AC 6 dense), about 20–30 mm, laid hot and rolled
Carmarthen: common questions
Are there planning or highway rules in Carmarthen?
In Wales, new front hardstanding should be porous or drain to a permeable area within the property, and work covering 100 m² or more with drainage effects usually needs SAB approval first. Dropped kerbs are approved by the council as highway authority.
Do you work in my part of Carmarthen?
We cover Carmarthen including SA31, SA33, and nearby Llanelli, Ammanford.
How long will the work take at my Carmarthen property?
Usually 2–4 working days for a typical drive, longer with drainage or a dropped kerb. We book Carmarthen surveys alongside other jobs in Dyfed, and give you dates once the specification is agreed.
Is the survey in Carmarthen free?
Yes for new surfacing such as drives, paths, private roads and car parks. Small repairs are often priced from photos; if a visit is needed for a repair-only job, we tell you any charge first.
Also in Carmarthen
- Tarmac paths and footpaths
- Car park and yard repairs
- Permeable tarmac driveways
- Tar and chip driveways
- Front garden to tarmac driveway
- Car park surfacing
- Everything in Carmarthen
Ready for a price in Carmarthen? Use the guide price tool or send the form, and we'll arrange a visit.
New tarmac driveways in Carmarthen: get a written quote
Send a postcode and a rough size and we'll arrange a survey. Every quote lists the layers, edging, drainage and VAT.
- Surface courseDEPTH + MIX
- Binder courseDEPTH + MIX
- Sub-baseDEPTH + MATERIAL
- Edges, drainage, VATITEMISED