There are real ways to spend less on a driveway and there is one way of spending less that is never worth it. The honest split is between choosing a cheaper surface, which is fine, and skimping the excavation and sub base, which is the failure this trade is built on.
The cheapest driveway material and other genuinely cheap surfaces
Gravel is the cheapest usable driveway by a clear margin: excavate, lay a sub base, fit edgings, add a membrane and spread stone. It drains freely, it is easy to repair by topping up, and it needs edging or it migrates onto the pavement. A gravel stabilising grid costs more and largely solves migration and rutting, and it is usually worth the difference. Tarmac is the cheapest bound surface on a reasonable area, because it is laid quickly and the material is inexpensive.
The cheapest way to do a driveway: where the savings are real
Keeping the shape simple, because curves and small areas cost more per square metre. Reducing the area, since a drive only has to hold the cars. Reusing the existing sub base where it is genuinely sound and can be proved so. Doing the excavation or the spoil removal yourself if you have the means. And choosing a surface whose repair you can do: a gravel drive you top up yourself is cheaper over twenty years than a surface that needs a contractor for every patch.
Cheap driveways and the one saving that always costs more
Laying any surface over an inadequate base. Tarmac laid thinly on unprepared ground ruts and cracks within a couple of winters. Block paving on a shallow sub base sinks in wheel tracks. Resin on a failing base cracks with it. The dig and the stone are the least glamorous and least visible part of the job and they are the part that determines whether you buy a driveway once or twice. Any quote substantially below the others is usually saving here, so ask both for the depths.
Cheap driveway options that are actually good
Two strips of a hard surface where the wheels run with gravel or planting between them costs far less than a full drive and looks better on many houses. Keeping an existing sound drive and replacing only the failed section. Reclaimed materials, where the labour to sort and lay them is still less than new stone. And permeable build ups, which can avoid a planning application for a front garden and often cost no more than the alternative done properly.
Questions people ask about cheap driveway ideas UK
What is the cheapest driveway surface?
Gravel, by a clear margin, provided it is laid on a proper sub base with edgings. A stabilising grid costs more and largely solves migration and rutting.
Can I lay a driveway over the old one to save money?
Only where the existing base is genuinely sound and the levels and drainage still work. Otherwise it inherits the problem and raises the level, which matters near a damp proof course.
Where should I never save on a driveway?
The excavation and the sub base. Every common driveway failure, rutting, sinking, cracking, ponding, starts there, and it is invisible once the surface is on.
Are wheel strips a reasonable idea?
Yes, and on many houses they look better than a full expanse of hard surface. They cost far less and reduce the paved area, which helps with drainage as well.