Accessory Structures in Warren, MI (2026)
2 verified accessory structures rules for Warren, Michigan, sourced directly from the municipal code and official government pages.
Verified from official government sources
Shed & Carport Rules
Detached accessory buildings in Warren, including sheds, are capped at one story or 10 feet to the eaves, can't cover more than 30% of the rear yard, and need a Section 22.02 building permit, a permanent foundation, and masonry, wood, or metal construction under Zoning Ordinance Section 4.20.
Warren Detached Accessory Building Rules
Some RestrictionsWarren Zoning Ordinance § 4.20
(a)All detached accessory buildings shall not exceed one (1) story or ten (10) feet in height measured to the eaves and shall not occupy more than thirty (30) percent of the rear yard. Such buildings shall conform to, and shall not project beyond, the existing side building lines of the principal building on the lot and shall be one (1) foot from the edge of any easement. The construction of al...
Garage Conversions
Warren bars converting a detached garage to living space outright, but allows an attached garage conversion under Section 4.29 if the owner shows a practical difficulty adding on, removes the garage door, keeps at least two off-street parking spaces, and builds a matching new garage or shed.
Warren Garage-to-Living-Space Conversion Rules
Significant RestrictionsWarren Zoning Ordinance § 4.29
(b)Detached garages shall not be converted to living space.(c)The expansion of a residential dwelling to add living space is encouraged to be in the nature of a first or a second story addition of living space pursuant to the State Construction Code. However, in those situations where the applicant demonstrates a practical difficulty in adding on living space, an attached garage may be converte...
Looking for Macomb County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Warren city rules.
Accessory Structures in Macomb County →