SE21: 18 m clear of the highest tide in the London Bridge ledgers

SE21 on the relief of London, with a tide staff: 18 m above the 1953 tide, the highest in the ledgers.

The lowest postcode in SE21, SE21 7AW, stands 18 m above the highest tide in the London Bridge ledgers (5.41 m, 1 February 1953). The highest, SE21 7HR, stands 89 m above it.

Ground at eight in ten of its postcodes: between 29 m and 63 m, measured from Ordnance Datum; the middle one stands at 41 m.
None lies in the Environment Agency's Flood Zone 3 from the sea.
Mostly in Southwark; partly in Lambeth.

Open SE21 on the map