RM11: 4.3 m clear of the highest tide in the London Bridge ledgers

RM11 on the relief of London, with a tide staff: 4.3 m above the 1953 tide, the highest in the ledgers.

The lowest postcode in RM11, RM11 1GL, stands 4.3 m above the highest tide in the London Bridge ledgers (5.41 m, 1 February 1953). The highest, RM11 3TZ, stands 36 m above it.

Ground at eight in ten of its postcodes: between 19 m and 34 m, measured from Ordnance Datum; the middle one stands at 30 m.
None lies in the Environment Agency's Flood Zone 3 from the sea.
In Havering.

Open RM11 on the map