Permeable tarmac driveways in Keynsham

How much should I budget in Keynsham?

Guide prices below are for Keynsham, adjusted for the South West, where surfacing rates run about 3% above our UK midpoint.

Item	Guide price (inc VAT)
Porous asphalt drive on a permeable stone base	£82–£129 per m²
Example: 30 m² drive	£2,700–£4,250
Example: 50 m² drive	£4,100–£6,450
Example: 80 m² drive	£6,600–£10,300

As a 2026 guide in Keynsham, permeable tarmac driveway work runs at about £82–£129 per m² including VAT, so a 50 m² drive is roughly £4,100–£6,450. Guide only; the survey confirms a fixed price.

Rules that apply in Keynsham

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. A vehicle crossing over the footway is a separate approval, from the highway authority (the county or unitary council).

What the price covers

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
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

How it is built

Where we work in and around Keynsham

The key facts for Keynsham. We cover Keynsham by grouping surveys with nearby Somerset jobs; Bath is 6 miles away.

Postcodes: BS31, BS30, BS14, BS15
Area: Somerset
Nearest towns: Bristol (5 miles), Bath (6 miles), Yate (9 miles), Nailsea (11 miles)
Pricing: South West, about 3% above our UK midpoint
Kerb approvals: The highway authority

Close to Keynsham: Bristol, Bath, Yate, Nailsea, Portishead.

Your questions answered

Can I get a free survey in Keynsham?

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.

What is the price of a permeable tarmac driveway in Keynsham?

As a 2026 guide in Keynsham, permeable tarmac driveway work runs at about £82–£129 per m² including VAT, so a 50 m² drive is roughly £4,100–£6,450. Edging, drainage and a dropped kerb are priced separately where needed.

How quickly can work start in Keynsham?

Usually 3–5 working days. We book Keynsham surveys alongside other jobs in Somerset, and give you dates once the specification is agreed.

Are there planning or highway rules in Keynsham?

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).

More we do in Keynsham

Send us a postcode, a rough size and a photo or two, and we'll come back with survey dates for Keynsham.