4-5-505: ILLEGAL USES:
   A.   A landlord may bring any action to recover the possession of an apartment unit if the tenant is using or permitting an apartment unit to be used for an illegal purpose.
   B.   For the purposes of this section, "illegal purpose" shall mean and include, but not be limited to, the occupancy of the apartment unit by a number of persons in excess of the following numbers:
 
Bachelor/single
3 persons
1 bedroom of 1,200 square feet or less
4 persons
1 bedroom in excess of 1,200 square feet
5 persons
2 bedrooms of 1,500 square feet or less
5 persons
2 bedrooms in excess of 1,500 square feet
6 persons
3 bedrooms of 2,100 square feet or less
7 persons
3 or more bedrooms in excess of 2,100 square feet
8 persons
 
(1962 Code § 11-5.05)