I have a 2 yr old (rescue dog) Alano/Aktia mix an he is the most all around fabulous dog I've owned...he stays in a 1200 sq ft condo and gets along fine with good walks. He has a 15 yr old Schipperkee sis that bosses him around.
The Alano should receive adequate exercise so where the dog's owner lives is not the question, but how the dog is maintained. An apartment is not ideal but will be okay if this is all the dog has known. I would not recommend that a dog comes from a big yard to an apartment. Certainly the dog should have company and at least two good long walks/park visits per day.