Is an Ottawa address in the City's flood plain overlay?
The Flood Plain Overlay in the City's zoning: a planning map of the 1-in-100-year flood plain. In the full report, not the free check.
Sources checked October 16, 2026
- The recordFlood plain overlay
- Where to read itgeoOttawa; Zoning By-law 2026-50, Part 5: overlay provisions and 1 more
- In the full reportWith the address's other records
What the record shows
The overlay carries the Official Plan's policy for the 1-in-100-year flood plain into the zoning: development inside it is prohibited, with narrow exceptions such as small additions, and the by-law notes that development in a flood plain is also regulated under the Conservation Authorities Act. The overlay is a line on a planning map, not a forecast that a home will flood, and being outside it is not proof that a home can't.
The City's geoOttawa map shows the overlay layer, and the zoning text sets out its provisions. It is not the same record as a conservation authority's regulated-area map, a basement-flooding history or an insurer's view.
Where to read it yourself
- geoOttawa: the City's map, with the overlay as a layer
- Zoning By-law 2026-50, Part 5: overlay provisions: the Flood Plain Overlay's rules
- Ottawa's new Zoning By-law 2026-50: status and appeals
What OfferDue covers in Ottawa
The flood plain overlay is read for Ottawa homes in the full report, with the layer's date on the line. Conservation-authority regulated-area checks are not currently included in our reports. The free check doesn't cover flood plain, so this one needs the full report.
Public-record information, not legal, financial, insurance or inspection advice. Records change and can be incomplete, and this page describes the records, not any particular home. What we cover, city by city.