SE23: 16 m clear of the highest tide in the London Bridge ledgers

SE23 on the relief of London, with a tide staff: 16 m above the 1953 tide, the highest in the ledgers.

The lowest postcode in SE23, SE23 2AS, stands 16 m above the highest tide in the London Bridge ledgers (5.41 m, 1 February 1953). The highest, SE23 3BL, stands 99 m above it.

Ground at eight in ten of its postcodes: between 31 m and 77 m, measured from Ordnance Datum; the middle one stands at 46 m.
None lies in the Environment Agency's Flood Zone 3 from the sea.
Mostly in Lewisham; partly in Southwark.

Open SE23 on the map