“Detroit plumbing permit” and “Detroit plumbing permit application” are among the top Google suggestions when people search for Detroit plumbing. This guide summarizes what the City of Detroit's Buildings, Safety Engineering and Environmental Department (BSEED) publishes about plumbing permits. Rules change, so confirm with BSEED before you start. Questions about a job? Call (313) 474-7729.

When a Detroit plumbing permit is required
Detroit's plumbing permit FAQ follows the State of Michigan code: plumbing work shall not start until a permit has been issued. A permit isn't required for repairs involving only the working parts of a faucet or valve, or for clearing stoppages, as long as existing piping and fixtures aren't altered. BSEED's trade permit page lists replacement of system components and any change to plumbing systems as needing a trade permit, which in practice covers water heater replacements, re-piping, new fixtures in new locations and sewer replacement.
Who can pull the permit
- Licensed contractors: a Michigan-licensed plumbing contractor, with a designated licensed master plumber whose license number goes on the application.
- Homeowners: BSEED says homeowners may apply for trade permits for single-family structures they own, with proof of ownership. Two-family and larger buildings and commercial property need a contractor.
- Building sewer or water service only: the FAQ notes these permits may be issued to people other than licensed contractors or master plumbers; check local requirements.
How to apply
- Create an account in the city's Accela online permit portal (contractors link their license account).
- Submit the plumbing permit application and pay the fee from the BSEED fee schedule.
- Upload any plans or documents requested. The city estimates about one day to issue a plumbing permit after submission.
- Schedule inspections through Accela or the Construction Division. BSEED's FAQ says plumbing inspections are generally done within 48 hours of a request, with same-day efforts for hazardous or emergency installations called in before 9 a.m.
If work passes, the permit holder can receive a Certificate of Acceptance. If there are violations, the FAQ says a notice is mailed within five business days and a re-inspection must be scheduled.
Which code applies
Michigan's current plumbing code is the 2021 Michigan Plumbing Code, effective March 12, 2024, based on the 2021 International Plumbing Code with Michigan amendments. One- and two-family homes follow the plumbing provisions of the Michigan Residential Code. LARA's Bureau of Construction Codes has proposed adopting the 2024 IPC edition. You can verify any plumbing contractor's license through LARA.
Suburbs
Each suburb runs its own building department and portal. Our area pages, like Dearborn, Livonia and St. Clair Shores, link to the right office and summarize what it publishes.
Frequently asked questions
Do I need a permit to replace a water heater in Detroit?
BSEED lists replacement of system components as requiring a trade permit, so yes, plan on a permit and inspection.
Can a homeowner pull a plumbing permit in Detroit?
Yes, for a single-family home they own, with proof of ownership. Multi-family and commercial work needs a licensed contractor.
How long does a Detroit plumbing permit take?
BSEED estimates about one day after the application is submitted through Accela.
How do I verify a plumber's license in Michigan?
Use LARA's Verify a License tool on the Bureau of Construction Codes site.
