Who issues the permit in Garden City?

The local building department for Garden City handles permitting. This page lists its contact details and online portal. Your mailing city is not always the permitting authority, so confirm the jurisdiction before you apply.

How do I find out the exact requirements for my project?

Run the free PermitRoadmap check for your specific project and answers. It returns the likely permits, documents, inspections, and next steps, each linked to its official source.

Do I need a permit for accessory dwelling unit (adu) in Garden City?

Permit required

Yes. In Michigan, accessory dwelling unit (adu) generally requires a permit, and Garden City is no exception.

State law requires a building permit application with scaled plans and a site plan before a building or structure is constructed (MCL 125.1510(1)); a new dwelling unit is not on the state list of exempt work. Converting existing space into a dwelling unit is a change of use, and LARA states a permit is required when the use or occupancy of a structure or part of it changes. Whether an ADU is allowed on your lot, and its size and placement, is set by local zoning, which is separate from the building permit. Michigan does not allow any opening from a private garage directly into a room used for sleeping (R 408.30544b, amending R302.5.1).

Get the checklist for your accessory dwelling unit (adu) in Garden City. A free check first, then a free printable Permit Prep Pack.

Documents you may need

Building permit application verified by affidavitRequired
Plans drawn to scale of the proposed workRequired
Site plan showing the dimensions and location of the ADU and other buildings on the lotRequired
Energy code compliance informationLikely required
Separate electrical, plumbing, and mechanical permitsLikely required

Possible inspections

Footing and foundation inspections for new construction
Rough electrical, plumbing, and mechanical inspections
Framing inspection after the rough trade inspections are approved
Insulation and final inspections

Frequently asked questions

Do I need a permit for accessory dwelling unit (adu) in Garden City?: Yes. In Michigan, accessory dwelling unit (adu) generally requires a permit, and Garden City is no exception. The documents and inspections sections on this page list what the building department typically asks for.
Who issues the permit in Garden City?: The local building department for Garden City handles permitting. This page lists its contact details and online portal. Your mailing city is not always the permitting authority, so confirm the jurisdiction before you apply.
How do I find out the exact requirements for my project?: Run the free PermitRoadmap check for your specific project and answers. It returns the likely permits, documents, inspections, and next steps, each linked to its official source.

PermitRoadmap is an independent informational service and is not affiliated with any city, county, state agency, or permitting authority. Results are informational and do not replace confirming requirements with the local permitting authority.