HA9: 19 m clear of the highest tide in the London Bridge ledgers

HA9 on the relief of London, with a tide staff: 19 m above the 1953 tide, the highest in the ledgers.

The lowest postcode in HA9, HA9 6FA, stands 19 m above the highest tide in the London Bridge ledgers (5.41 m, 1 February 1953). The highest, HA9 9LN, stands 72 m above it.

Ground at eight in ten of its postcodes: between 32 m and 54 m, measured from Ordnance Datum; the middle one stands at 40 m.
None lies in the Environment Agency's Flood Zone 3 from the sea.
In Brent.

Open HA9 on the map