ADU Rules in Detroit, MI — 2026 Guide
Check if your Detroit property qualifies for an ADU in 20 seconds
Detroit ADU Rules at a Glance
Detroit has limited ADU support. Here is what you need to know.
- Detroit does not have a comprehensive ADU ordinance.
- Accessory structures are permitted but face occupancy restrictions.
- Large lot sizes and low land costs make ADUs financially interesting but legally complex.
- Community groups are advocating for ADU policy reform.
What ReadyPermit Checks for Detroit Properties
Enter any Detroit address and get an instant ADU feasibility analysis covering:
Zoning Compliance
Verify your Detroit lot is zoned for ADU construction under current MI and local rules.
Setbacks & Coverage
Check required setbacks, lot coverage limits, and height restrictions for your specific parcel.
ADU Size Limits
Calculate the maximum ADU square footage allowed based on your lot size and primary dwelling.
Permit Requirements
Understand what permits and approvals Detroit requires before you can break ground.
Flood & Hazard Zones
Identify if your property falls in a flood zone, fire zone, or other hazard overlay.
Lot & Parcel Data
Pull parcel boundaries, lot dimensions, and existing structures from county records.
Check Your Detroit Property Free
Enter your address below. In under 20 seconds you will know if your Detroit lot qualifies for an ADU — no phone calls, no waiting.
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