UB9: 26 m clear of the highest tide in the London Bridge ledgers

UB9 on the relief of London, with a tide staff: 26 m above the 1953 tide, the highest in the ledgers.

The lowest postcode in UB9, UB9 5HN, stands 26 m above the highest tide in the London Bridge ledgers (5.41 m, 1 February 1953). The highest, UB9 6PY, stands 96 m above it.

Ground at eight in ten of its postcodes: between 40 m and 89 m, measured from Ordnance Datum; the middle one stands at 84 m.
None lies in the Environment Agency's Flood Zone 3 from the sea.
In Hillingdon.

Open UB9 on the map