Front garden to tarmac driveway in Harpenden

How much should I budget in Harpenden?

Guide prices below are for Harpenden, adjusted for the East of England, where surfacing rates run about 5% above our UK midpoint.

Item	Guide price (inc VAT)
New black tarmac drive, full dig-out and new sub-base	£63–£100 per m²
Example: 20 m² drive	£1,400–£2,200
Example: 30 m² drive	£2,100–£3,300
Example: 45 m² drive	£2,850–£4,500

As a 2026 guide in Harpenden, front garden driveway conversion work runs at about £63–£100 per m² including VAT, so a 30 m² drive is roughly £2,100–£3,300. Guide only; the survey confirms a fixed price.

How it is built

Covering Harpenden

What applies in Harpenden. Harpenden is 11 miles from Watford, and we survey there as part of Hertfordshire cover.

Postcodes: AL5, AL3
Area: Hertfordshire
Nearest towns: St Albans (5 miles), Luton (5 miles), Hemel Hempstead (6 miles), Welwyn Garden City (7 miles)
Pricing: East of England, about 5% above our UK midpoint
Kerb approvals: The highway authority

The same service is available in St Albans, Luton, Hemel Hempstead, Welwyn Garden City, Hatfield.

What we do on a front garden driveway conversion

Turning a lawn or front garden into off-road parking: dig, base, tarmac, kerb crossing and planting.

Lawn, hedge roots and topsoil removed
Sub-base and two tarmac courses, or porous asphalt
Kerbs or blocks as edge restraint
Water directed to a border, soakaway or channel
A planted strip kept where it helps drainage and looks

Planning and kerb rules for Harpenden

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.

Questions about front garden driveway conversions in Harpenden

Will someone visit before I get a fixed price in Harpenden?

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.

Do you cover all of Harpenden?

We cover Harpenden including AL5, AL3, and nearby St Albans, Luton, Hemel Hempstead.

Are there planning or highway rules in Harpenden?

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).

How much does a front garden driveway conversion cost in Harpenden?

As a 2026 guide in Harpenden, front garden driveway conversion work runs at about £63–£100 per m² including VAT, so a 30 m² drive is roughly £2,100–£3,300. Edging, drainage and a dropped kerb are priced separately where needed.

Other work in Harpenden

Questions about front garden driveway conversions in Harpenden? Call, WhatsApp or use the form, and we'll talk it through.