When a development consists of structures that have more than one
level below or above ground, and the quantity of stores, offices or
multiple dwellings will cause a duplication of hundred blocks already
in existence and adjacent to the development, a premises address shall
be assigned to the ground-level floor. The owner of the development
may then use the floor level either before or after the premises address
to identify the store, office or multiple dwelling. Examples: "3333
Planner Place, Lower Level," or "3333 Planner Place, Basement Level."
Other levels could be referred to as Main Level, 2nd Level etc.;