W8: one of 685 postcodes stands below a spring high tide

The ground at one of W8's 685 postcodes, W8 5AE, is lower than an ordinary spring high tide at London Bridge (3.9 m above Ordnance Datum).

• Ground at eight in ten of its postcodes: between 7.0 m and 29 m, measured from Ordnance Datum; the middle one stands at 12 m.
• 4 of 685 stand lower than the 1953 tide (5.41 m).
• None lies in the Environment Agency's Flood Zone 3 from the sea.
• In Kensington and Chelsea.