Regulated Area Search


We are currently updating our mapping to more accurately reflect the areas that are regulated by TRCA. Use the button below to view the draft updated mapping.

In accordance with Ontario Regulation 166/06, TRCA regulates areas where development could be subject to flooding, erosion or dynamic beaches, and where interference with wetlands and alterations to shorelines and watercourses might adversely affect those environmental features. Any of these activities within the Regulated Area may require a permit from TRCA.

Please use the search tool below to determine if your property is within TRCA’s Regulated Area. Note that mapping is updated on a periodic basis and not all regulated areas may be mapped.

If you would like written confirmation and a more detailed review of how your property may be affected by our regulation and other TRCA policies and programs, consider using TRCA’s property inquiry or other services.

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Terms and Conditions

Not all regulated areas may be mapped. Boundary lines are a conceptual representation of TRCA's Regulation limit and should not be relied upon as a precise delineation. A feature does not have to be mapped to be regulated. See text of Ontario Regulation 166/06, as amended, for details.

Information in this viewer is not intended to constitute advice nor is it to be used as a substitute for specific advice from a qualified professional. You should not act, or refrain from acting, based upon information shown in the viewer without verifying the information with TRCA staff and, as necessary, obtaining professional advice regarding your particular facts and circumstances.

By checking 'I agree', you agree that you have read, understand, and accept the terms and conditions described and you agree to be bound by the TRCA Terms of Service and the TRCA Privacy Policy. The Services are offered to you conditioned on your acceptance without modification of this Agreement, including without limitation, TRCA's right to use all data collected.

Map Layers

TRCA Conceptual Regulated Area

Parcel Boundary

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