DA5: 6.0 m clear of the highest tide in the London Bridge ledgers

The lowest postcode in DA5, DA5 1EE, stands 6.0 m above the highest tide in the London Bridge ledgers (5.41 m, 1 February 1953). The highest, DA5 2FA, stands 44 m above it.
- Ground at eight in ten of its postcodes: between 14 m and 39 m, measured from Ordnance Datum; the middle one stands at 27 m.
- None lies in the Environment Agency's Flood Zone 3 from the sea.
- In Bexley.