Most Cosham properties sit on chalk ground at the foot of Portsdown Hill, generally free-draining, so Gravel Driveways here comes down to loose aggregate held by a stabiliser grid or edge restraint over a permeable membrane and sub-base. Cosham’s own driveways are shaped by steady through-traffic and hospital-visitor parking pressure on streets near the QA Hospital. It is best suited to long approach drives and period properties where a hard-edged surface would look wrong, though without a genuine edge restraint the stone will migrate onto verges and lawns.
About Gravel Driveways
A properly built gravel driveway is loose aggregate laid over a permeable membrane and a compacted stone sub-base, usually held in place with a honeycomb stabiliser grid or a firm edge restraint so the stone doesn’t migrate, rut under tyres, or spread onto lawns and verges. Because water passes straight through the loose aggregate rather than running off the surface, gravel is naturally free-draining without needing a specialist permeable system, and it is straightforward to top up over time rather than replace outright. It suits long approach drives, rural and semi-rural settings, and period properties where a hard-edged sealed surface would look at odds with the house, though it needs a genuine edge restraint to stay tidy rather than simply being tipped and left.
Best suited to: long approach drives, rural and period properties, and anywhere a soft, traditional look is wanted
Less suited to: steep gradients without extra stabilisation, where loose stone will migrate downhill under normal driving
Ground & property in Cosham
Cosham sits at the foot of Portsdown Hill, where the free-draining chalk ground is a genuine practical advantage over the low island ground further south. Victorian terraces line the streets around the high street, giving way to interwar semis further out, and steady through-traffic plus hospital-visitor parking near Queen Alexandra Hospital keeps on-street pressure high on the surrounding roads.