Michigan Shed Permit Rules (2026)

Key Facts

Code Act: MCL 125.1501 et seq.
Permit Exemption: 200 sq ft or less
Local Zoning: Setbacks still apply
Trade Permits: Always required

Full Breakdown

Michigan adopted the Michigan Residential Code under the Stille-DeRossett-Hale Single State Construction Code Act, MCL 125.1501 et seq., creating a uniform statewide construction standard. Section R105.2 of the Michigan Residential Code exempts one-story detached accessory structures used as tool and storage sheds, playhouses, and similar uses from a building permit when the floor area does not exceed 200 square feet. Larger sheds require permits, footings, and code-compliant construction. Local zoning ordinances still control setback, height, and placement, but cannot lower the building-code permit exemption threshold. Electrical, plumbing, and mechanical work in any shed still requires separate trade permits regardless of size.

Violations & Penalties

Building code violations carry administrative fines up to $500 per day under MCL 125.1523; trade work without permits voids inspections.

Frequently Asked Questions

Do I need a Michigan building permit for a small shed?

No. The Michigan Residential Code exempts detached one-story sheds 200 square feet or smaller. Larger structures require a building permit through your local enforcing agency.

Can a Michigan city require permits for sheds under 200 sq ft?

Cities cannot require building permits below the state threshold, but they may require zoning permits for placement, setbacks, and accessory-structure registration under local ordinance.

Does the shed exemption apply to electrical wiring?

No. Adding electricity, plumbing, or mechanical systems to any shed requires separate trade permits and inspections under the Michigan Construction Code regardless of structure size.

Michigan Residential Code Universal Shed Permit Threshold

Key Facts

Full Breakdown

Violations & Penalties

Frequently Asked Questions

Sources

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