Permeable tarmac driveways in Sevenoaks

What does a permeable tarmac driveway cost in Sevenoaks?

These Sevenoaks guide prices reflect rates in 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

As a 2026 guide in Sevenoaks, permeable tarmac driveway work runs at about £88–£138 per m² including VAT, so a 50 m² drive is roughly £4,400–£6,900. Guide only; the survey confirms a fixed price.

The build-up we price

What is included in a permeable tarmac driveway?

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
Edge restraint that does not block the flow

Covering Sevenoaks

Sevenoaks at a glance. Smaller towns such as Sevenoaks are surveyed alongside nearby jobs in Kent.

Postcodes: TN13, TN14, TN15
Area: Kent
Nearest towns: Tonbridge (6 miles), Swanley (9 miles), Tunbridge Wells (10 miles), Caterham (12 miles)
Pricing: South East, about 10% above our UK midpoint
Kerb approvals: The highway authority

Nearby, we work in Tonbridge, Swanley, Tunbridge Wells, Caterham, Bexley.

Planning and kerb rules for Sevenoaks

In England, householder permitted development (Class F of the 2015 General Permitted Development Order) lets you lay a hard surface in front of a house without planning permission if it is porous, or if the rainwater is directed to a permeable area within the property. If the area is more than 5 m² and neither applies, you need permission. Standard dense tarmac is not porous, so a dense tarmac drive needs a lawn, border, channel to a soakaway or other permeable route for its water. If the job needs a dropped kerb, the highway authority (the county or unitary council) approves it before any work on the footway.

Questions about permeable tarmac driveways in Sevenoaks

Is the survey in Sevenoaks 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.

Are there planning or highway rules in Sevenoaks?

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. Dropped kerbs are approved by the highway authority (the county or unitary council).

Do you cover all of Sevenoaks?

We cover Sevenoaks including TN13, TN14, TN15, and nearby Tonbridge, Swanley, Tunbridge Wells.

Permeable tarmac driveway cost in Sevenoaks: what should I budget?

As a 2026 guide in Sevenoaks, permeable tarmac driveway work runs at about £88–£138 per m² including VAT, so a 50 m² drive is roughly £4,400–£6,900. Edging, drainage and a dropped kerb are priced separately where needed.

Other work in Sevenoaks

Tell us what you have in mind for Sevenoaks and we'll book a survey and put the specification in writing.