There are condos that include common areas (balconies or walkways) that are "exclusive use" for the condo owner. The condo's CC&R should identify every feature of the condo you buy, and what parts are yours vs the association's property.
If you can file a homeowner's insurance claim to fix the "common area" after its been damaged, then you own it (not technically, but legally). If the association's insurance policy covers it, or they must repair it, then you do not own it (technically or otherwise).
Ownership not only implies control, but also responsibility to repair and maintain.
Based on what's been discussed here, the point is moot. If the area is owned by multiple condo owners (joint ownership of common area), then you are not "the owner".
Let's complicate the issue well beyond its usefulness, even though the OP already said he's renting an apartment, not owning a condo!
