Second Units, also known as basement apartments, in law suites, accessory dwelling units are permitted in several residential zones across the city provided they are in compliance with the Zoning By-law provisions.
If you are considering adding a second unit to your home, consult section 4.1.20 of the Zoning By-law and visit the Housing Choices - Second Units web page for more information.
Any information contained herein is strictly for information purposes only and should be reviewed in conjunction with Zoning By-Law 0225-2007, as amended. In the case where the information provided conflicts with that of the text contained in Zoning By-law 0225-2007, as amended, the text shall prevail. It should not be relied on when making decisions in connection with real estate transactions, development proposals or building permits.
Please visit the Mississauga Civic Centre, between 8:30 a.m. and 4:30 p.m. to review the Official Zoning By-law and to speak with staff before making important decisions.
A list of amendments passed by Council but not yet incorporated into the office consolidation copy can be found on the Unconsolidated Zoning By-law Amendments document.
Copies of Zoning By-law Amendments are available at:
Office of the City Clerk
Corporate Services Department, 2nd Floor.