SW5: 2 of 306 postcodes stand below a spring high tide

The ground at 2 of SW5's 306 postcodes (1%) 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 6.0 m and 8.2 m, measured from Ordnance Datum; the middle one stands at 7.1 m.
• 12 of 306 stand lower than the 1953 tide (5.41 m).
• One lies in the Environment Agency's Flood Zone 3 from the sea, mapped without defences.
• In Kensington and Chelsea.