SM3: 17 m clear of the highest tide in the London Bridge ledgers

SM3 on the relief of London, with a tide staff: 17 m above the 1953 tide, the highest in the ledgers.

The lowest postcode in SM3, SM3 9DT, stands 17 m above the highest tide in the London Bridge ledgers (5.41 m, 1 February 1953). The highest, SM3 9WW, stands 58 m above it.

Ground at eight in ten of its postcodes: between 27 m and 56 m, measured from Ordnance Datum; the middle one stands at 37 m.
None lies in the Environment Agency's Flood Zone 3 from the sea.
Mostly in Sutton; partly in Merton.

Open SM3 on the map