Permeable tarmac driveways in Carshalton

Permeable tarmac driveway prices in Carshalton

These Carshalton guide prices reflect rates in London, about 20% above our UK midpoint.

Item	Guide price (inc VAT)
Porous asphalt drive on a permeable stone base	£96–£150 per m²
Example: 30 m² drive	£3,150–£4,950
Example: 50 m² drive	£4,800–£7,500
Example: 80 m² drive	£7,700–£12,000

As a 2026 guide in Carshalton, permeable tarmac driveway work runs at about £96–£150 per m² including VAT, so a 80 m² drive is roughly £7,700–£12,000. Guide only; the survey confirms a fixed price.

Carshalton: the local details

What applies in Carshalton. As one of the larger towns in Greater London, Carshalton sees regular survey visits.

Postcodes: SM5, SM6, SM1
Area: Greater London
Nearest towns: Sutton (2 miles), Mitcham (2 miles), Morden (2 miles), Croydon (3 miles)
Pricing: London, about 20% above our UK midpoint
Kerb approvals: The highway authority

The same service is available in Sutton, Mitcham, Morden, Croydon, South Croydon.

Rules that apply in Carshalton

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. Any new or widened crossing over the pavement needs approval from the highway authority (the county or unitary council).

Layer by layer

What the price covers

Open-graded porous asphalt on a deep permeable stone base, so rain soaks through on site.

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
Overflow to a soakaway or border on slow-draining ground
Edge restraint that does not block the flow

Carshalton: common questions

Are there planning or highway rules in Carshalton?

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).

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

As a 2026 guide in Carshalton, permeable tarmac driveway work runs at about £96–£150 per m² including VAT, so a 80 m² drive is roughly £7,700–£12,000. Edging, drainage and a dropped kerb are priced separately where needed.

Do you cover all of Carshalton?

We cover Carshalton including SM5, SM6, SM1, and nearby Sutton, Mitcham, Morden.

How long does a permeable tarmac driveway take in Carshalton?

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

Other work in Carshalton

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