Policy information sourced from Lewisham Core Strategy
10 Managing and reducing the risk of flooding
The Council will use the requirements detailed in PPS25 (and associated practice guide) and the London Plan while at the same time implementing the spatial planning and development control recommendations of the Strategic Flood Risk Assessment and the Sequential Test in order to:
- sequentially allocate land to guide development into areas least at risk from flooding
- prevent new development from adding to the risk of localised flooding
- reduce the flood risk to people and the built environment and to the development itself and elsewhere by ensuring the highest design standards contributing to flood reduction and mitigation
- demonstrate that the most sustainable urban drainage system that is reasonably practical is being incorporated to reduce flood risk, improve water quality and achieve amenity and habitat benefits
- conserve water resources by using water saving devices and rainwater harvesting systems.
Applicants will need to demonstrate that their proposal will deliver a positive reduction in flood risk to the borough, whether that be by reducing the frequency or severity of flooding (for example, through the introduction of sustainable urban drainage systems and/or living roofs and walls), or by reducing the impact that flooding may have on the community (for example, through a reduction in the number of people within the site that may be at risk). This will need to be reflected through the inclusion of a positive statement within the detailed Flood Risk Assessment (FRA) for the site that clearly and concisely summarises how this reduction in flood risk will be delivered.
The use of the London Plan SPG Sustainable Design and Construction, or any subsequent document, will be used where relevant.
For more information please see the Core Strategy