The Coastal Flood Boundaries (CFB) data and guidance are available for download here:
Detailed results from the update are given in a series of geographical information system shapefiles. A search for ‘Coastal Design Sea Levels’ on the website should find links to the latest version of the datasets and documentation.
The technical and user reports are downloaded with the data and contained in a folder called “doc”. A separate link to the documentation is provided if the data itself is not required.