Md. Code, Land Use § 10–202

To promote the health, safety, and general welfare of the community, the Mayor and City Council of Baltimore City may regulate:

(1) the height, number of stories, and size of buildings and other structures;

(2) the percentage of a lot that may be occupied;

(3) off–street parking;

(4) the size of yards, courts, and other open spaces;

(5) population density; and

(6) the location and use of buildings, signs, structures, and land.