Decks over 30 inches above grade require a building permit in Wayne County municipalities. Detroit requires permits through BSEED with construction documents. Ground-level patios at grade generally do not require a permit.
Under the Michigan Residential Code, decks more than 30 inches above grade require a building permit. In Detroit, permits are obtained through BSEED with construction documents that must include structural details, footings, and guardrail specifications. Construction documents must be sealed by a licensed architect or professional engineer for larger projects. Ground-level patios at grade do not require a permit. Guardrails at least 36 inches high are required where decks exceed 30 inches above grade. All decks must meet zoning setback requirements. Covered decks and screen porches may require additional permits. Plan review takes 1-3 business days for standard projects.
Unpermitted decks may result in BSEED citations, stop-work orders, and required retroactive permits. Unsafe decks may be ordered removed.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Detroit, MI
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Detroit, MI
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Detroit, MI
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See how Detroit's deck & patio permits rules stack up against other locations.
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