Understanding SuDS Requirements in Planning Applications

Flood risk and drainage management are key parts of the planning process. At Castledine Environmental, we provide expert Flood Risk Assessments (FRA) and SuDS (Sustainable Drainage Systems) strategies for developers, planners, and consultants across the UK.

If your site is located in Flood Zones 2 or 3, exceeds one hectare in size, or is flagged for surface water flooding, your local planning authority will request a flood risk report. Our specialists use the latest flood mapping data and hydraulic modelling to evaluate flood risk and provide mitigation strategies where necessary. Each report is fully compliant with Planning Policy Guidance (PPG) and Environment Agency standards.

We also develop bespoke SuDS designs that ensure efficient surface water management while supporting biodiversity and long-term sustainability. Our team can recommend the most appropriate systems for your site, including infiltration trenches, soakaways, detention basins, and rainwater harvesting solutions.

From housing estates to commercial developments, we tailor our service to meet your project's drainage and environmental compliance needs. We liaise with planning officers, LLFAs, and design teams to keep your application on track.

With Castledine Environmental, you can expect clear reporting, professional advice, and prompt service at every stage of your project.

For more information on Understanding SuDS Requirements in Planning Applications talk to Castledine Environmental