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Hill / Bryn

Conwy Tidal Flood Risk Study Flood Map Web Page

(Please note this study currently only covers the Llandudno and Pensarn to Kinmel Bay areas)
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  • Flood Probability Key

        Blue1 Floods more frequently than 1 in 20 years.
        Blue2 Floods between 1 in 20 years and 1 in 50 years.
        Blue3 Floods between 1 in 50 years and 1 in 75 years.
        Blue4 Floods between 1 in 75 years and 1 in 100 years.
        Blue5 Floods between 1 in 100 years and 1 in 200 years.
        Blue6 Floods between 1 in 200 years and 1 in 500 years.
        Blue7 Floods between 1 in 500 years and 1 in 1000 years.
        Blue8 Floods less frequently than 1 in 1000 years.

  • How to Use the Flood Map

    1. The initial map shown displays the Flood Map for Llandudno. Click on 'View Flood Map for Pensarn to Kinmel Bay' to see the Flood Map for this area or enter a postcode and press the 'Go' button.

    2. Use the pan and zoom controls in the top left hand corner of the map window to navigate around the map.

    3. Click on any point in the area shaded blue to see its flood probability information for different flood depths (clicking on an area outside the blue shading will reveal an empty information table). Please note, if you are using Internet Explorer version 11 or later you may need to enable the compatibility mode setting for the map to function correctly. If you do not see the information table, please check that you have this setting enabled.

        Information Callout

    4. The table displayed shows:
       i) The probability of the area flooding to any depth. For example, the area may flood more frequently than 1 in 20 years.
       ii) The probability of the area flooding to a depth of 45cm or more.
       iii) The probability of the area flooding to a depth of 60cm or more.
       iv) The probability of the area flooding to a depth of at least 1m.
       Please see the 'Introduction to Conwy Tidal Flood Risk Study' page for information on how these values relate to TAN 15.

  • Using the Flood Maps as Part of the Planning Process

    These flood maps can be used to produce Flood Consequence Assessments (FCAs). It is incumbent upon the applicant to produce an FCA when seeking planning consent. All developers should contact Environment Agency Wales prior to the commencement of an FCA (see 'Useful Links and Contacts'). Climate change scenarios should also be used to support planning applications.

  • Disclaimer

    The Conwy County Borough Council Flood Maps are provided free of charge. Whilst all reasonable effort has been made to ensure that they are accurate for their intended purpose, no warranty is given by Conwy County Borough Council in this regard. Users are required to validate any information provided independently and any reliance upon the information is at the user's own risk. Neither Conwy County Borough Council, nor HR Wallingford Ltd., accept any liability for loss or damage suffered by the user or any third parties through the use of the information. More information about the Flood Maps is given on the Supporting Information page.

    Please note, these maps have been produced courtesy of Ordnance Survey according to their OpenSpace licence agreement. In particular, you may print up to ten paper copies of a screenshot, no greater than A4 size (625cm squared).


Conwy County Borough Council, Bodlondeb, Conwy, North Wales, LL32 8DU.
Telephone: 01492 574000. Fax: 01492 574559. E-mail:
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