Smoking is prohibited inside units at all times. Marijuana laws have changed since October 2018. Almost all condo buildings will not allow residents to smoke marijuana inside the units or in the common areas of the building for recreational purposes. You may be allowed to smoke marijuana for medicinal purposes. But, before you do that, check with your property management. Contact your condo board and look into your lease agreement if you will be allowed to smoke marijuana in your Mississauga condo.