Flooding in the UK is a serious hazard which is predicted to increase due to climate change. Existing drainage systems in towns and cities are under pressure as they were not designed to cope with the increased rainfall. Paving over front gardens adds to the problem as additional water enters the drainage system, rather than filtering away through the soil. Paving over front gardens can also damage water quality in drainage systems and the wider environment.
Permeable surfaces allow water to drain into the ground without adding to the local flood risk or causing pollution concerns.
There are three types of solutions to creating a permeable driveway:
- Using gravel or a mainly green, vegetated area.
- Directing water from an impermeable surfaces to a bordering rain garden or soakaway.
- Using permeable block paving, porous asphalt or porous concrete.
Permeable paving works by permeable surfaces allowing water to soak through the surface into the ground below.
These webpages have been produced in collaboration with Interpave, the Environment Agency and Warwickshire Wildlife Trust.