W9: 3.0 m clear of the highest tide in the London Bridge ledgers

W9 on the relief of London, with a tide staff: 3.0 m above the 1953 tide, the highest in the ledgers.

The lowest postcode in W9, W9 3WH, stands 3.0 m above the highest tide in the London Bridge ledgers (5.41 m, 1 February 1953). The highest, W9 3DZ, stands 30 m above it.

Ground at eight in ten of its postcodes: between 24 m and 33 m, measured from Ordnance Datum; the middle one stands at 29 m.
None lies in the Environment Agency's Flood Zone 3 from the sea.
Mostly in Westminster; partly in Kensington and Chelsea.

Open W9 on the map