Did you know that you are only allowed to have a certain number of people living in your house, apartment or room? The number depends on the size and type of unit and where it is located. Are you sure your bedroom is legal? An attic or basement room may not meet local requirements.

The City of Ann Arbor has several residential zones. The purpose of this page is to give a general overview of zoning requirements.

Classifications
R1	Single-family residential dwelling
R2A	Dual-family residential dwelling, such as duplexes.
R2B	Fraternities, Sororoties, and Co-ops
R3	Townhomes
In R1, R2 and R3, a dwelling may be occupied by a family or up to 4 individuals.
R4	Multiple-family dwellings. Includes apartment buildings and most housing near campus.
In R4, a dwelling may be occupied by a family or up to 6 individuals.
R5	Hotel/Motel
R6	Mobile Homes
Source: City Code 5:10.2-10.10 (pdf 45KB). Exceptions may exist to these guidelines. Please consult the City of Ann Arbor to verify zoning for a particular unit.

Note that in addition to the above requirements, certain space is necessary. In Ann Arbor:

• Living and sleeping rooms need sufficient usable area. In rooms with sloped ceilings, only the area with a minimum height of 5 feet is included.
• Bedrooms need to be at least 70 square feet, and at least 7 feet wide. A multiple-person bedroom should be at least 50 square feet per person.
• Living rooms may not count as a bedroom.
• Living or sleeping in a garage is prohibited.
• Cellar bedrooms need be approved for living and sleeping. Important factors in this approval are safety requirements including one window of a specified size for egress, smoke alarm coverage and radon testing.

If you have any doubt in these areas about your current living arrangements or about arrangements you are considering, call the City of Ann Arbor Housing Bureau at (734) 994-2674. Your request for information will be kept confidential.