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23. ANP17: Flood Risk

23.1Flooding and climate - The latest predictions are that climate change will result in more extreme weather in the UK, with heavier rainfall events and an increased risk of flooding, more and longer-lasting heat waves and higher sea levels. We are already seeing increasing numbers of heavy rainfall events, with greater risk of river and flash flooding and scarcity of water due to heat waves. (sources:

Committee on Climate Change (2017). UK Climate Change Risk Assessment: Synthesis Report www.theccc.org.uk/wp-content/ uploads/2016/07/UK-CCRA-2017-Synthesis-Report-Committee-on Climate-Change.pdf

High risk of unprecedented UK rainfall in the current climate, Nature Communications 8, Article number: 107(2017) www. nature.com/articles/s41467-017-00275-3

Flooding in England: A National Assessment of Flood Risk. Environment Agency (2009), www.gov.uk/government/uploads/ system/uploads/attachment_data/file/292928/geho0609bqds-e-e.pdf 45 Met Office (November 2018).

UKCP18 Derived Projections of Future Climate over the UK, www.metoffice.gov.uk/pub/data/ weather/uk/ukcp18/science-reports/UKCP18-Derived-Projections of-Future-Climate-over-the-UK.pdf 46 House of Commons Environmental Audit Committee (July 2018). Heatwaves: adapting to climate change, https://publications. parliament.uk/pa/cm201719/cmselect/cmenvaud/826/826.pd)

23.2There are areas of Albury parish that are vulnerable to run off and flash flooding. To address this there is a necessity to prevent flooding to properties, protect against overheating and harness rainfall.

23.3Community Infrastructure Levy can be used on local infrastructure, and this should be investigated to help fund flood relief in prone areas.

Policy ANP17 – Flood Risk

  1. New development should include flood risk proposals demonstrating a sustainable and integrated approach to the management of flood risk, surface water (including run off) and foul drainage. These proposals should be robust to the expected impacts of climate change.

  2. New developments should incorporate methods to harness water capture, reduce water usage, reduce surface water flooding, and include sufficient landscaping which is retained in perpetuity and use permeable surfaces. This might include best-practice water efficient appliances and fittings, green roofs, water tanks/butts for rainwater harvesting and other water storage features.

  3. Any development involving the replacement of permeable surfaces with non-permeable surfaces, the loss of trees, soft landscaping or any other features that reduce surface water runoff is required to use appropriate mitigation measures to prevent an increase in flood risk within the site or elsewhere.