Is a Kingston address in a regulated flood area, and whose map says so?

Cataraqui Conservation's jurisdiction runs from Greater Napanee to Brockville, and the City of Kingston appoints members to its board. Its Regulation Screening Map lets a landowner explore the regulated areas of its watershed, and its property inquiry form answers whether a property is in a regulated area, with a separate file search for legal and real estate inquiries. Its permits page says a permit may be needed for work in a watercourse, lake, pond or wetland, or within 50 metres of the top of the bank of a river, stream, lake or other watercourse, including changes that increase the number of dwelling units in a building.

The authority prepares its floodplain mapping to the 1 in 100 year flood, the event with a one per cent chance in any year. A regulated-area result governs permits for building, grading and work near water; it is not a forecast that a home will flood, and a home outside the mapped area can still take water through a basement. The City's own rules point the same way: its additional unit page excludes lands subject to natural hazards. Under the Conservation Authorities Act as amended in 2026, Cataraqui Conservation is to join the Eastern Lake Ontario Regional Conservation Authority on 1 February 2027 or a later date set by regulation.

• Cataraqui Conservation planning and permitting: the Regulation Screening Map, property inquiries and file searches
• Cataraqui Conservation permits: what work needs the authority's permit
• Cataraqui Conservation floodplain mapping: how the 1 in 100 year floodplain is mapped
• Ontario Regulation 41/24: the regulation behind every conservation authority's regulated area
• Bill 97, Plan to Protect Ontario Act (Budget Measures), 2026: Schedule 3 amends the Conservation Authorities Act; the transition date is 1 February 2027 or a later date set by regulation
• Regional conservation authority boundaries (ERO 025-1257): the Province's decision of 10 March 2026 on which authority joins which of the nine regional authorities

Conservation-authority regulated-area and flood plain checks are not currently included in our reports, so for a Kingston home the authority's own screening map is the place to look. The full report's water and flooding group does cover past floods seen by satellite, nearby creeks, rivers and ponds, and mapped wetlands for any Kingston address.

What we cover, city by city See the sample report