W10: 1.9 m clear of the highest tide in the London Bridge ledgers

The lowest postcode in W10, W10 6TP, stands 1.9 m above the highest tide in the London Bridge ledgers (5.41 m, 1 February 1953). The highest, W10 4AG, stands 32 m above it.
- Ground at eight in ten of its postcodes: between 10 m and 33 m, measured from Ordnance Datum; the middle one stands at 24 m.
- None lies in the Environment Agency's Flood Zone 3 from the sea.
- Mostly in Kensington and Chelsea; partly in Westminster.