Flood Risk in Northern Beaches, NSW
Check whether a Northern Beaches property address falls within a flood planning area. Data sourced from the Northern Beaches Flood Planning and NSW EPI statutory overlays. Flood status directly affects granny flat eligibility and nearby development activity in Northern Beaches.
Flood data
Flood planning area
Flood features
0
Heritage items
956
Flood planning in Northern Beaches — common questions
Is my Northern Beaches property in a flood planning area?
Parts of the Northern Beaches have flood planning areas, particularly along Narrabeen Lagoon, Dee Why Lagoon, and Manly Creek. Coastal lagoon areas are most affected. Check your specific address above.
What flood risks exist on the Northern Beaches?
Coastal lagoon flooding (Narrabeen, Dee Why, Curl Curl), creek flooding (Manly Creek, Middle Creek), and overland flow are the main risks. The 2022 storms caused significant flooding around Narrabeen Lagoon.
Does flood risk affect development on the Northern Beaches?
Properties in flood planning areas face development controls including minimum floor levels and flood-compatible construction. The Northern Beaches DCP has specific provisions for flood-affected land.
Can I build a granny flat on a flood-affected Northern Beaches property?
Under SEPP Housing 2021, flood control lots cannot use the CDC pathway. A DA with flood risk assessment is required. Check your flood status above, then use the granny flat checker for full CDC eligibility.
Need the full planning picture?
Flood is one layer. A full report covers heritage, CDC eligibility, DCP setbacks, and nearby DA activity.
See all property checks →Also check: granny flat eligibility in Northern Beaches
Also check nearby councils
Flood data for Northern Beaches sourced from the Northern Beaches Flood Planning and NSW Planning Portal EPI statutory overlay. Not a Section 10.7 flood certificate. Not legal advice. Confirm with Northern Beaches Council or a licensed flood consultant before making property or development decisions.