NSW Water Mark Cadastral Boundaries

Spatial Services polygon data delineates tidal and non-tidal watermarks forming cadastral boundaries in New South Wales. Updates occur within 10 working days from plan lodgement, sourced from subdivision activity and multiple government agencies. This dataset underpins land tenure, use, and environmental management.

Use Cases

• Define cadastral property boundaries using the 'Watermark' polygon feature for land registration.
• Model flood risk zones by analyzing the spatial extent of 'tidal' and 'non-tidal' watermarks.
• Plan infrastructure development by integrating water mark data with other land parcel theme layers.
• Support water accounting programs by mapping the extent of ocean and inland water bodies.
• Manage disaster response by identifying cadastral boundaries adjacent to tidal water areas.

Strengths

• Polygon dataset representing spatial extents of tidal, non-tidal, and ocean waters.
• Data is updated within 10 working days from plan lodgement at Spatial Services.
• Integrated from multiple authoritative sources including Crown Lands and the Office of Environment and Heritage.

Limitations

• Spatial reference is GDA94 and cannot be easily consumed into GDA2020 environments.
• Specific row count, column details, and sample data are unavailable.
• The service is scheduled for retirement, requiring transition to a new GDA2020 service.

Provenance

Source

Spatial Services (DCS), NSW Government.

Collection Method

Continuously updated from subdivision, registration, gazettal activity, and multiple government stakeholders.

Freshness

Updated within 10 working days from plan lodgement.

Geography

New South Wales, Australia.