Flood risk (Adur and Worthing)

This information applies to both Adur and Worthing:

On the West Sussex County Council website:

See also:

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2025 Adur Level 2 Strategic Flood Risk Assessment (SFRA)

The Level 2 Strategic Flood Risk Assessment (SFRA) builds on the level 1 SFRA. It looks at those sites the level 1 assessment identified were at high flood risk and provides an overview of the nature of that risk. These studies do not determine whether a site will be allocated in the Local Plan, but provide us with the evidence to inform the site assessment process and undertake the exceptions test.

We worked closely with the Environment Agency and West Sussex County Council throughout the preparation of this study.

The study includes a main report and individual site summaries with mapping. A conceptual drainage strategy has also been produced for potential sites in South Lancing to highlight site-specific opportunities and constraints.

Adur Level 2 SFRA 2025:

Lancing Meadows - Concept Drainage Strategy:

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2024 Adur and Worthing Level 1 Strategic Flood Risk Assessment (SFRA)

This report has been prepared to provide evidence to support and inform future updates to the Adur Local Plan. It supersedes the previous 2020 Adur and Worthing Level 1 SFRA and considers the Local Plan areas of Adur District Council and Worthing Borough Council excluding the South Downs National Park.

The SFRA update was required to be compliant with the latest guidance described in the revised 2023 National Planning Policy Framework (NPPF) and updated 2022 Planning Policy Guidance (PPG). The SFRA provides flood risk evidence and long term strategy to support the management and planning of development, protect the environment and deliver infrastructure. It also supports the selection of site allocations in the Local Plan reviews and provides information and guidance to be used in the preparation of Flood Risk Assessments in support of site specific planning applications.

Reports:

Appendices:

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2020 Adur and Worthing Level 2 Strategic Flood Risk Assessment (SFRA)

This Level 2 SFRA was undertaken to provide detail of the level of actual flood risk from all sources to inform and support allocations in the Worthing Local Plan. This includes information on flood depths, extent of flooding, flood velocities and flood hazard for the present-day situation as well as flood extents for climate change conditions allowing the change over the lifetime of proposed development to be understood. Please note this is based on mapping from the previous 2020 SFRA and will be updated in due course.

Note: For sites in Adur this is superseded by the 2025 study (above).