RM1: 3.4 m clear of the highest tide in the London Bridge ledgers

RM1 on the relief of London, with a tide staff: 3.4 m above the 1953 tide, the highest in the ledgers.

The lowest postcode in RM1, RM1 2BP, stands 3.4 m above the highest tide in the London Bridge ledgers (5.41 m, 1 February 1953). The highest, RM1 4FA, stands 92 m above it.

Ground at eight in ten of its postcodes: between 15 m and 36 m, measured from Ordnance Datum; the middle one stands at 21 m.
None lies in the Environment Agency's Flood Zone 3 from the sea.
In Havering.

Open RM1 on the map