MississaugaBuilding PermitsSecond Suites
Published by City of Mississauga
This is the City of Mississauga’s document, as published on its website on 19 October 2026. The municipality may have changed it since: check the current version at the source. Legal notice
City of Mississauga By-law 0114-2016, the Second Units Registration By-law, passed in June 2016 to replace licensing of second units with registration; its short-title clause calls it the Registration of Second Units By-law. It defines a second unit as an accessory dwelling unit in a detached, semi-detached or row house, and covers registration by the City's Director of Building, the application and its review against the Building, Fire and Electrical Safety codes and Zoning By-law 225-2007, refusal, revocation, inspections, orders and fines. Units licensed under By-law 204-13 carried over.
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