What is permeable paving?

Permeable paving works by using blocks, slabs, or materials with gaps that let rainwater soak through into the soil layer below instead of running off the surface. The water passes either directly through the porous material itself or through the joints between blocks, then filters down through a permeable base layer into the ground.

This differs from standard block paving, which consists of solid blocks laid tightly together with minimal joint space. Solid paving sheds water as surface runoff, which flows into drainage systems or across the site.

The main advantage of permeable paving is drainage. By allowing water to enter the ground naturally, it reduces the volume and speed of surface water runoff, which helps prevent flooding on sites and in local areas during heavy rain. It also allows groundwater levels to recharge rather than being lost to drains. Where planning or environmental regulations require sustainable drainage solutions, permeable paving often meets those requirements.

Common permeable options in Cheltenham include permeable block paving with gaps filled by loose aggregate or mortar, gravel-filled grids, and specialist permeable concrete blocks or slabs. The specific choice depends on the site conditions, usage, and local planning guidance. Local block paving contractors can advise on whether permeable systems are suitable for a particular location and how they compare to standard installations.