Flood risk checker

Search a postcode or postcode area against the current live flood-risk postcode summary seam.

Source: Flood risk postcode summary. Coverage: Live flood summary rows matched postcode area CM1. Treat the result as a postcode geometry signal rather than a property-specific verdict.. Freshness: Row refresh date unavailable in current public seam. Matches: 25.
Postcode Area Risk level Feature summary Flood zones Planning note
CM1 1AE Chelmsford Review flood features 1 flood feature match FZ2 Use the official long-term flood risk checker before ruling the postcode in or out on one public seam result.
CM1 1AF Chelmsford No direct flood match No flood feature matches in the current postcode geometry seam. Zone detail unavailable Treat this as an early screening signal only and still check the official flood service before you commit.
CM1 1AG Chelmsford No direct flood match No flood feature matches in the current postcode geometry seam. Zone detail unavailable Treat this as an early screening signal only and still check the official flood service before you commit.
CM1 1AH Chelmsford No direct flood match No flood feature matches in the current postcode geometry seam. Zone detail unavailable Treat this as an early screening signal only and still check the official flood service before you commit.
CM1 1AN Chelmsford No direct flood match No flood feature matches in the current postcode geometry seam. Zone detail unavailable Treat this as an early screening signal only and still check the official flood service before you commit.
CM1 1AP Chelmsford No direct flood match No flood feature matches in the current postcode geometry seam. Zone detail unavailable Treat this as an early screening signal only and still check the official flood service before you commit.
CM1 1AQ Chelmsford No direct flood match No flood feature matches in the current postcode geometry seam. Zone detail unavailable Treat this as an early screening signal only and still check the official flood service before you commit.
CM1 1AT Chelmsford No direct flood match No flood feature matches in the current postcode geometry seam. Zone detail unavailable Treat this as an early screening signal only and still check the official flood service before you commit.
CM1 1AU Chelmsford No direct flood match No flood feature matches in the current postcode geometry seam. Zone detail unavailable Treat this as an early screening signal only and still check the official flood service before you commit.
CM1 1AW Chelmsford No direct flood match No flood feature matches in the current postcode geometry seam. Zone detail unavailable Treat this as an early screening signal only and still check the official flood service before you commit.
CM1 1BA Chelmsford No direct flood match No flood feature matches in the current postcode geometry seam. Zone detail unavailable Treat this as an early screening signal only and still check the official flood service before you commit.
CM1 1BB Chelmsford No direct flood match No flood feature matches in the current postcode geometry seam. Zone detail unavailable Treat this as an early screening signal only and still check the official flood service before you commit.
CM1 1BD Chelmsford No direct flood match No flood feature matches in the current postcode geometry seam. Zone detail unavailable Treat this as an early screening signal only and still check the official flood service before you commit.
CM1 1BE Chelmsford No direct flood match No flood feature matches in the current postcode geometry seam. Zone detail unavailable Treat this as an early screening signal only and still check the official flood service before you commit.
CM1 1BS Chelmsford No direct flood match No flood feature matches in the current postcode geometry seam. Zone detail unavailable Treat this as an early screening signal only and still check the official flood service before you commit.
CM1 1BT Chelmsford Review flood features 1 flood feature match FZ2 Use the official long-term flood risk checker before ruling the postcode in or out on one public seam result.
CM1 1BY Chelmsford No direct flood match No flood feature matches in the current postcode geometry seam. Zone detail unavailable Treat this as an early screening signal only and still check the official flood service before you commit.
CM1 1DB Chelmsford Review flood features 1 flood feature match FZ3 Use the official long-term flood risk checker before ruling the postcode in or out on one public seam result.
CM1 1DD Chelmsford No direct flood match No flood feature matches in the current postcode geometry seam. Zone detail unavailable Treat this as an early screening signal only and still check the official flood service before you commit.
CM1 1DE Chelmsford Review flood features 1 flood feature match FZ3 Use the official long-term flood risk checker before ruling the postcode in or out on one public seam result.
CM1 1DG Chelmsford No direct flood match No flood feature matches in the current postcode geometry seam. Zone detail unavailable Treat this as an early screening signal only and still check the official flood service before you commit.
CM1 1DH Chelmsford Review flood features 1 flood feature match FZ3 Use the official long-term flood risk checker before ruling the postcode in or out on one public seam result.
CM1 1DL Chelmsford No direct flood match No flood feature matches in the current postcode geometry seam. Zone detail unavailable Treat this as an early screening signal only and still check the official flood service before you commit.
CM1 1DN Chelmsford Review flood features 1 flood feature match FZ3 Use the official long-term flood risk checker before ruling the postcode in or out on one public seam result.
CM1 1DR Chelmsford No direct flood match No flood feature matches in the current postcode geometry seam. Zone detail unavailable Treat this as an early screening signal only and still check the official flood service before you commit.

Known caveats

  • Flood summaries are postcode-geometry signals only and do not replace a property-specific flood assessment.
  • The current public flood seam does not expose a trustworthy row refresh timestamp, so freshness is still partial here.
  • Use the official long-term flood risk service before you rule a postcode in or out on this tool alone.