Permeable tarmac driveways in Grantham

What does a permeable tarmac driveway cost in Grantham?

Guide prices below are for Grantham, adjusted for the East Midlands, where surfacing rates run about 2% below our UK midpoint.

Item	Guide price (inc VAT)
Porous asphalt drive on a permeable stone base	£78–£122 per m²
Example: 30 m² drive	£2,600–£4,050
Example: 50 m² drive	£3,900–£6,100
Example: 80 m² drive	£6,250–£9,800

As a 2026 guide in Grantham, permeable tarmac driveway work runs at about £78–£122 per m² including VAT, so a 30 m² drive is roughly £2,600–£4,050. Guide only; the survey confirms a fixed price.

Do I need permission in Grantham?

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).

What we do on a permeable tarmac driveway

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
Geotextile separating layer on the formation
Open-graded permeable sub-base, often Type 3 or 4/20 stone
Edge restraint that does not block the flow

Grantham: the local details

What applies in Grantham. We reach Grantham on our Lincolnshire survey days; Lincoln is 22 miles away.

Postcodes: NG31, NG32
Area: Lincolnshire
Nearest towns: Sleaford (11 miles), Stamford (19 miles), Spalding (22 miles), Lincoln (22 miles)
Pricing: East Midlands, about 2% below our UK midpoint
Kerb approvals: The highway authority

Nearby, we work in Sleaford, Stamford, Spalding, Lincoln.

The build-up we price

Questions about permeable tarmac driveways in Grantham

Is the survey in Grantham 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 Grantham?

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 Grantham?

We cover Grantham including NG31, NG32, and nearby Sleaford, Stamford, Spalding.

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

As a 2026 guide in Grantham, permeable tarmac driveway work runs at about £78–£122 per m² including VAT, so a 30 m² drive is roughly £2,600–£4,050. Edging, drainage and a dropped kerb are priced separately where needed.

Other work in Grantham

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