Dearborn, MI Accessory Structures: Garage Conversions (2026)
Garage conversion rules in Dearborn, MI, sometimes called garage-to-ADU or accessory living unit conversions, govern permits, ceiling height, egress, and parking replacement.
Key Facts
- Habitable space
- Living, sleeping, or cooking use
- Conversion evidence
- Framed wall, brick, siding enclosure
- Occasional party use
- Not conversion
- Sleeping in garage
- Never allowed
Summary
Dearborn bars converting a garage into livable space without permits: framing in a wall or enclosing it with brick or siding counts as conversion, though occasional party use doesn't.
(b) Conversion. No garage shall be converted into habitable space without permits. For the purposes of this ordinance, "habitable space" shall be defined "as space within a structure for living, sleeping, or cooking." Factors demonstrating conversion include unauthorized renovations which require permits or permanent enclosure of the garage by installation of a framed wall, and/or enclosure by brick, siding or other materials. Occasional use of a garage for social gatherings, such as parties, which does not involve physical conversion of the garage, is permitted.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-07: Code: Updated through: July 22, 2026 | Zoning: Updated through: July 22, 2026).
Full Breakdown
Zoning Ordinance § 2.03(A)(10)(b) prohibits converting a garage into 'habitable space', defined as space used for living, sleeping, or cooking, without permits. The city treats unauthorized renovations that require permits, or permanently enclosing the garage with a framed wall, brick, siding, or similar material, as evidence of conversion. A garage that keeps functioning as a garage, including occasional social use like a party, is not considered converted. Converted or not, the same section bars sleeping, cooking, open-flame heaters, and most plumbing or electrical work inside any garage.
Violations & Fines
Converting a garage without permits is a zoning violation subject to correction, and can also strip the required off-street parking, exposing the property to enforcement under § 4.01(B)(2).
Frequently Asked Questions
Can I turn my garage into a bedroom in Dearborn?
Does hosting a party in my garage count as an illegal conversion?
Sources & Official References
Other rules in Dearborn
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