Policy information sourced from the Hertsmere Site Allocations and Development Management Policies Plan
SADM15 - Sustainable Drainage Systems
The design of new development should include sustainable drainage measures.
In particular, the Council will require the introduction of sustainable drainage (SuDS) on all major developments (as defined in the Town and Country Planning (Development Management Procedure) (England) Order 2015 and any subsequent order). The drainage scheme should provide the most sustainable option from the SuDS hierarchy. Measures should attenuate water runoff at source (e.g. through attenuation ponds, filter strips, swales) and achieve multiple benefits (including management of flood risk and surface water pollution, amenity and biodiversity). The drainage scheme will:
- achieve the green field runoff rate, or as close to it as practicable;
- provide a 1 in 100 year attenuation taking into account climate change;
- provide arrangements for future maintenance and management.
For more information please see the Hertsmere Policies Plan