Permeable tarmac driveways in East Sussex

How much does a permeable tarmac driveway cost in East Sussex?

Rates in East Sussex 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 East Sussex

Postcode areas: BN, 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.

Ground check: how fast does the soil drain?
Dig out deeper than a standard drive to fit the storage layer
Geotextile separating layer on the formation
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 East Sussex

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.