Permeable tarmac driveways in County Armagh

How much does a permeable tarmac driveway cost in County Armagh?

Rates in County Armagh follow Northern Ireland, about 12% below our UK midpoint.

Item	Guide price (inc VAT)
Porous asphalt drive on a permeable stone base	£70–£110 per m²
Example: 30 m² drive	£2,300–£3,650
Example: 50 m² drive	£3,500–£5,500
Example: 80 m² drive	£5,650–£8,800

Towns we cover in County Armagh

Postcode areas: BT.

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
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 County Armagh

In Northern Ireland, more than 5 m² of hard surface in front of a house should be porous or drain to a porous area within the property; DfI Roads approves dropped kerbs. A vehicle crossing over the footway is a separate approval, from DfI Roads.

How it is built