In Southsea, Permeable & SuDS Driveways is built around shallow, low-lying ground close to the seafront, prone to standing water without good falls: a permeable resin, open-jointed block, or gravel-and-grid build-up that lets rainwater drain through rather than run off. Southsea’s own driveways are shaped by extremely narrow frontages with heavy on-street parking pressure near the seafront, and direct seafront exposure to salt-laden air along the Southsea promenade. That makes it a strong fit for front gardens over 5m² and sites with limited natural fall for surface water — worth knowing that since October 2008 in England, over 5m² of impermeable surfacing draining to the highway generally needs planning permission — a permeable surface generally does not, though this is general guidance, not a guarantee for any specific property.
About Permeable & SuDS Driveways
Permeable and SuDS (Sustainable Drainage Systems) driveways use a surface and sub-base combination that lets rainwater soak through into the ground or a storage layer beneath, rather than sheeting off the surface toward the highway or a neighbouring property. In practice that means a permeable resin-bound system, block paving laid with open, permeable joints, or a properly built gravel-and-grid system, each sitting over a sub-base designed to hold and disperse water rather than just support weight. This is directly relevant to a genuinely useful planning rule: since October 2008 in England, laying more than 5m² of impermeable hard surfacing in a front garden that drains to the highway requires planning permission, whereas a permeable surface, or one draining to a soakaway or border, generally does not. That is a factual, general planning position — it is not a guarantee that any specific property qualifies, and it does not cover handling or submitting a planning application.
Best suited to: front gardens over 5m², low-lying or flood-plain sites, and anywhere surface water has limited natural fall away from the property
Less suited to: sites where a fully sealed, zero-drainage surface is specifically required for another reason
Ground & property in Southsea
Southsea’s dense Victorian and Edwardian terraces and converted townhouses sit close to the seafront, and a good number of them fall inside the Southsea seafront conservation area, which shapes what can be done to the original frontage. The ground here is shallow and low-lying, so getting the falls right matters, and salt-laden air off the promenade weathers an exposed surface faster than it would a few streets inland.
Planning note: the Southsea seafront conservation area constraining changes to many original Victorian and Edwardian frontages
Coastal / flood note: direct seafront exposure to salt-laden air along the Southsea promenade