There may be the existence of two dwelling units often referred to as a basement apartment within your home. It is your responsibility as the owner, to comply with the Ontario Fire Code (“Code”), the Ontario Building Code and City of Markham By-Laws as applicable. The information included in the document "Owners' Guide to Two Dwelling Units in Your Home" provides you with resources so that you will be able to legalize your existing two dwelling unit home and achieve code compliance.
Fire Prevention Division
Markham Fire & Emergency Services
905.477.7000 extension 2210