Permeable tarmac driveways in Kent
From Maidstone to the smaller towns in Kent, our permeable tarmac driveways quotes list the depths, edging, drainage and VAT so you can compare like with like.
How much does a permeable tarmac driveway cost in Kent?
Rates in Kent follow the South East, about 10% above our UK midpoint.
| Item | Guide price (inc VAT) |
|---|---|
| Porous asphalt drive on a permeable stone base | £88–£138 per m² |
| Example: 30 m² drive | £2,900–£4,550 |
| Example: 50 m² drive | £4,400–£6,900 |
| Example: 80 m² drive | £7,050–£11,000 |
Towns we cover in Kent
- Maidstone
- Gillingham
- Chatham
- Tunbridge Wells
- Folkestone
- Margate
- Ashford, Kent
- Canterbury
- Sittingbourne
- Gravesend
- Dartford
- Ramsgate
- Dover
- Tonbridge
- Strood
- Whitstable
- Deal
- Sevenoaks
- Rochester
- Herne Bay
- Broadstairs
- Faversham
- Swanley
- Swanscombe
Postcode areas: BR, CT, DA, ME, RM, TN.
What is included?
A permeable tarmac drive uses porous asphalt, a mix with fewer fine particles so water passes through the gaps, laid on an open-graded stone base that stores the rain and lets it soak into the ground.
- Dig out deeper than a standard drive to fit the storage layer
- Geotextile separating layer on the formation
- Open-graded permeable sub-base, often Type 3 or 4/20 stone
- Porous asphalt binder and surface courses
- Overflow to a soakaway or border on slow-draining ground
- Edge restraint that does not block the flow
Rules in Kent
In England, a new hard surface over 5 m² in front of a house needs planning permission unless it is porous or drains to a lawn, border or soakaway within the property. If the job needs a dropped kerb, the highway authority (the county or unitary council) approves it before any work on the footway.
How it is built
Permeable tarmac driveways in Kent: questions
How much does a permeable tarmac driveway cost in Kent?
As a 2026 guide, about £88–£138 per m² inc VAT in Kent. The survey confirms a fixed price.
Which towns in Kent do you cover?
Maidstone, Gillingham, Chatham, Tunbridge Wells, Folkestone, Margate, Ashford, Kent, Canterbury and more.
How long does a permeable tarmac driveway take?
Usually 3–5 working days.
Does porous asphalt work on clay soil?
It can, but clay drains slowly, so the stone base is made deeper to store water and may need an overflow to a soakaway or border. We check how the ground drains before recommending it.
Other services in Kent
Get a written tarmac 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