What affects the cost
Cost depends on material, driveway size, ground condition (excavation and disposal if the existing surface needs removing), drainage requirements, and access for machinery and material delivery. A driveway on a slope or with poor existing drainage costs more due to the groundwork involved, not just the surface material.
Choosing a driveway material
Block paving offers the most design flexibility and is repairable block-by-block if damaged, but costs more than tarmac. Tarmac is durable and cost-effective but less visually varied and harder to patch invisibly. Resin bound gives a smooth, low-maintenance modern look with good drainage but needs a sound existing base to lay onto. Gravel is the cheapest option but needs edging and occasional raking.
Weed prevention in driveways
Proper base preparation (a weed-suppressing membrane, adequate sub-base depth) prevents most weed growth from underneath. Weeds establishing in joints between blocks over time is normal and manageable with occasional treatment or re-sanding, not usually a sign of installation failure.
Driveway drainage regulations
Since 2008, planning permission is needed for a new or replacement driveway over 5 square metres using non-permeable material unless the water is directed to a permeable area (like a lawn) rather than the road. Permeable options (block paving with permeable jointing, gravel, resin bound) avoid this requirement — worth checking with your installer before committing to material.
Resin bound vs block paving driveways
Resin bound gives a smooth, seamless, low-maintenance surface with good permeability, but relies heavily on the quality of the base preparation underneath — a poorly prepared base is the most common cause of resin surface problems. Block paving is more forgiving of minor settlement since individual blocks can be lifted and relaid.
Designing for multiple vehicles
A driveway needing to accommodate multiple vehicles, or occasional larger vehicles (a van, a trailer), needs base preparation and sometimes material choice suited to that heavier or more frequent loading — worth specifying actual and expected future use to your installer rather than just current needs.
Three steps to hiring the right driveway installer
First, ask to see photos of completed local jobs, ideally a few years old so you can see how the material has worn. Second, ask specifically about base preparation depth and method. Third, get a written quote covering groundwork, drainage and edging, not just the surface material.
Tree roots and driveway heave
Established tree roots near a driveway can cause the surface to lift or crack over years, particularly with certain species known for aggressive root systems — worth discussing nearby trees with your installer, since root barriers or a different material choice can sometimes mitigate this.