Questions relating to the niche form of real property known as "strata title." More information is in the tag wiki.
A strata lot is a unit of real property resulting from the division of property into lots as per a "strata plan" under the Strata Property Act. This division may be stratified in that it can describe horizontal divisions of the property by reference to floors and/or ceilings of a building. This is niche terminology only used in a few jurisdictions, like Australia, British Columbia, and Alberta.
While it is like condominium and includes typical condominium forms, it encompasses more than that.
See the Wikipedia article on strata title and this primer Q&A.