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Flood risk assessment

How to find out if a property is in a flood risk area

Strategic Flood Risk Assessment 2018

We’re in a group of Norfolk local planning authorities who’ve commissioned a new Level 1 Strategic Flood Risk Assessment (SFRA). The group also includes:

  • Broadland District Council
  • Great Yarmouth Borough Council
  • North Norfolk District Council
  • Norwich City Council
  • South Norfolk Council
  • The Broads Authority

What is the SFRA?

Strategic Flood Risk Assessment (SFRA) provides a comprehensive and robust appraisal of the extent and nature of flood risk from all sources of flooding, now, and in the future, taking into account the effects of Climate Change and its implications for land use planning.

National policy requires that local planning policies use the results of the SFRA to direct development away from areas at greatest risk of flooding when preparing the Local Plan. The SFRA sets out the flood risk constraints to help inform the Local Plan, neighbourhood planning and the determination of planning applications in the borough.

The SFRA has been produced in collaboration with the Environment Agency (EA) and for certain locations, updates the existing Flood map for Planning (this SFRA will inform the EA’s next update). The SFRA also projects flood risk forward into the future, taking account of predicted sea level rise and increased annual rainfall as a result of climate change. The SFRA is primarily a tool to inform the planning of future development such as new housing, schools and businesses. To make sure that these developments remain safe throughout their entire life the council must plan for how flood risk will be in the future, not just how it is now.

The SFRA also provides a comprehensive source of information and guidance on flood risk for King’s Lynn and West Norfolk, identifying the requirements for site specific flood risk assessments and allows the authority to determine the risks from all sources of flooding taking into account climate change.

The SFRA should be read in conjunction with the relevant technical appendices and explanatory text contained in Appendix D.

The 2018 SFRA replaces our previous SFRA published in 2009.

A site specific flood risk assessment (FRA) will be required for all sites identified as falling within Flood Zones 2 and 3, or at risk of flooding from any other source i.e. residual risk, surface water flooding and ground water flooding. In Flood Zone 1 sites of 1ha or more or those identified as being at risk from another source of flooding such as surface water will also require a FRA. A planning application without a FRA will be deemed invalid until one is submitted.

The information contained within the SFRA can be used to inform the site specific FRA. The FRA should assess the validity of the data available and determine whether further assessment is needed to determine the risk onsite.

View the SFRA

Please read the SFRA in conjunction with the:

  • relevant technical appendices
  • explanatory text contained in Appendix D

Applicants proposing development within breach areas (fluvial and tidal) may need to request detailed information for their site specific flood risk assessment from the Environment Agency.

To locate your area of interest, please first view the Index Map. Please note the tile number, and then select this number map from the table below.

View index map

The interactive maps contained in this appendix detail flood risk from all sources including the functional floodplain (Flood Zone 3b) and climate change mapping.

Please note - we recommend you open the maps using Internet Explorer, or download the maps and view them using Adobe Reader.

Table of flood risk maps in West Norfolk
KL_01 KL_02 KL_03 KL_04 KL_05
KL_06 KL_07 KL_08 KL_09 KL_10
KL_11 KL_12 KL_13 KL_14 KL_15
KL_16 KL_17 KL_18 KL_19 KL_20
KL_21 KL_22 KL_23 KL_24 KL_25
KL_26 KL_27 KL_28 KL_29 KL_30
KL_31 KL_32 KL_33 KL_34 KL_35
KL_36 KL_37 KL_38 KL_39 KL_40
KL_41 KL_42 KL_43 KL_44 KL_45
KL_46 KL_47 KL_48 KL_49 KL_50
KL_51 KL_52 KL_53 KL_54 KL_55
KL_56 KL_57 KL_58 KL_59 KL_60
KL_61 KL_62 KL_63 KL_64 KL_65
KL_66 KL_67 KL_68 KL_69 KL_70
KL_71 KL_72 KL_73 KL_74 KL_75
KL_76 KL_77 KL_78 KL_79 KL_80
KL_81 KL_82 KL_83 KL_84 KL_85
KL_86 KL_87 KL_88 KL_89 KL_90
KL_91 KL_92 KL_93    

What happens next?

Work commenced in April 2018 on a Level 2 SFRA. This is due to be completed early in 2019.