Policy information sourced from the East Horsley Neighbourhood Plan

EH-EN5: Flooding

Development proposals in East Horsley which will result in surface water draining into drainage gullies, ditches, culverts, pipes or other systems provided for surface water drainage that will run at some point downstream through an area subject to higher risk of flooding than found in Zone 1 of the Environment Agency’s classification are required to demonstrate that the system is capable of accepting the anticipated extra load. Surface water generated is encouraged to be dealt with on site by means of Sustainable Drainage Systems (‘SuDs’).

Development proposals in such locations are required to ensure that existing drainage systems are not worsened, and ideally are improved, as a result of the proposed development. They must also ensure that no increase in surface water flooding will arise at the development site or the surrounding area as a consequence of the development.

For more information please see the Neighbourhood Plan