What to know before a permeable block drive in Cardiff
Cardiff has everything from short terrace frontages to wide drives on newer estates, so the survey sets the layout and the dig.
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 permeable block drive cost in Cardiff?
In Wales, a permeable block drive usually costs £100–£160 per m² including VAT. For a 50 m² drive, that is roughly £4,900–£7,900. 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 |
|---|---|
| Permeable block paving driveway | £100–£160 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 does a permeable block drive involve?
It is the straightforward way to pave a front garden without sending rain into the road, which matters because in England a non-permeable front surface over 5 m² that does not drain to a permeable area within the property needs planning permission, and in Wales any new front surface must be permeable or drain within the property. The build is different from a standard drive from the ground up, so it has to be designed as permeable rather than just using different blocks.
- Ground check: how well the soil drains and how high the water table sits
- Deeper dig-out for the open-graded sub-base
- Open-graded crushed stone (no fines) laid and compacted in layers
- Edge restraints and any overflow or outlet the design needs
- Geotextile layer where the design needs one
Before we price your permeable block drive
- Block range, thickness, colour and pattern to suit the house
- Where an electric vehicle charger cable might run
- Access for a mini-digger, skip or grab lorry
- Ground conditions under the old surface and how deep the sub-base must be
- Edges against lawns, beds, walls and neighbours
Do you need permission in Cardiff?
Cardiff 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.
What you can expect from us
Edges set in concrete
Every edge restraint is bedded and haunched, so the paving cannot creep.
Repair before replace
If your drive can be fixed or re-laid, we will say so.
One point of contact
You deal with one team from survey to sign-off, with work carried out by paving teams working under S&K.
Itemised quotes
Break-out, waste, edging, drainage and covers are separate lines you can see.
Permeable paving in Cardiff: questions
Can you match the blocks to my house in Cardiff?
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.
Do I need planning permission for a permeable block drive in Cardiff?
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.
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.
Do you cover Penarth, Dinas Powys and Rhiwbina?
Yes. We cover Cardiff and the places around it, including Penarth, Dinas Powys and Rhiwbina, and the rest of South Glamorgan.
Permeable paving near Cardiff
Nearby towns we cover for permeable paving, and permeable paving across South Glamorgan:
- Permeable paving in Penarth
- Permeable paving in Dinas Powys
- Permeable paving in Rhiwbina
- Permeable paving in Barry
- Permeable paving in Llantwit Major
