National planning policy is designed to protect people and property from flooding. Local planning authorities are expected to avoid inappropriate development in areas at risk of flooding by directing development away from areas at highest risk, including floodplains. The policy is underpinned by planning guidance which makes clear that new house building should not be permitted in functional floodplains where water has to flow or be stored in times of flood.
Mitigation measures to make development acceptable in flood risk areas can be made a requirement of any planning consent.
All local planning authorities are expected to follow the strict tests set out in national planning policy and guidance. Where these tests are not met, national policy is very clear that new development should not be allowed.