From the Montgomery County Housing Code Enforcement Handbook:
MINIMUM SPACE, USE AND LOCATION REQUIREMENTS
- every dwelling unit must contain at least 150 square feet for the first occupant and 100 square feet for every additional occupant;
- bedrooms require at least 70 square feet for one occupant and at least an additional 50 square feet of usable area for more than one occupant;
- cellar space must not be used for sleeping unless it meets Housing Code requirements for light, ventilation and emergency egress. Before using, you must get approval from the Department of Housing and Community Affairs.; and
- an occupant is defined as anyone over one year of age.
