Permit Required? Required
Typical Fee Range $1,000–$3,000 New construction permit rate ($83.50 base + $16.55 per $1,000) applies.
Fee Method Valuation-based
Apply Online Apply at Buildings, Safety Engineering, and Environmental Department →

What's Required in Detroit

  • Full architectural plans and site plan showing ADU location.
  • Must be located in the rear yard and meet lot occupancy rules.
  • Requires independent cooking, sleeping, and sanitation facilities.
  • Must meet Michigan Residential Code for safety and egress.
  • Utility separation or shared capacity must be professionally verified.
  • Special Land Use hearing may be required if property isn't zoned by-right.

How to Get a ADU Permit in Detroit

1

Step 1: Pre-App Meeting

Consult with BSEED Zoning to confirm the ADU is allowed by right.

2

Step 2: Custom Plans

Hire an architect to create structural and trade drawings.

3

Step 3: Online Filing

Submit the 'New Structure' application via eLAPS.

4

Step 4: Pay Fees

Pay the valuation-based building and plan review fees.

5

Step 5: Multi-Stage Inspections

Full series from footings and framing to final occupancy.

Frequently Asked Questions

Yes, garage conversions to living space cost roughly $800-$1,500 in permit fees.
It follows new construction rates: $83.50 for the first $2k + $16.55 per add'l $1k.
Usually yes for rental ADUs, though shared meters may be allowed for family use.