Administrative overview · FIPS 26147
St. Clair County permit authority
The first compliance decision is jurisdictional: identify the office with statutory authority over your parcel, then use its filing and inspection sequence to keep the project moving.
Jurisdictional status
Municipal Fallback
This profile identifies a handoff outside the county’s ordinary structural permitting lane.
Required jurisdiction check
Confirm the controlling local or state authority before filing.
The record is marked Municipal Fallback. That means the county profile should be treated as a routing brief: incorporated municipalities, a state building department, or a state fire marshal may control plan review, permits, and inspections. Contact the named agency below and verify the parcel’s jurisdiction before paying a fee or scheduling field work.
Responsible agency
St. Clair County local cities, villages, and townships; Michigan LARA for state-jurisdiction units
For a project in or near St. Clair County, this office is the identified point of contact for permit intake, statutory code enforcement, plan review coordination, and inspection release conditions. Confirm the parcel’s boundary and project type before relying on the county lane.
Direct contact
(810) 989-6900 (St. Clair County Administrator/Controller); local building offices vary.
Call before mobilizing if the project has a boundary, occupancy, fire, septic, or utility question.
Permit counter
St. Clair County Administration Building, 200 Grand River Avenue, Suite 203, Port Huron, MI 48060
Operating hours
St. Clair County Administrator/Controller: Monday-Friday, 8:00 a.m.-4:30 p.m.; local building departments set their own hours.
Review expectation
N/A; no countywide review timeline is published and local permitting timelines vary by enforcing agency.
Compliance workbench
Choose the next project decision.
Apply online
Open the verified digital gateway, application form, and review timeline.
Open guide →Fees & penalties
Understand fee schedules, enforcement exposure, and stop-work liabilities.
Open guide →Codes & exemptions
Read the code framework, minor-work exemptions, and inspection lane.
Open guide →Agency website
Visit the primary public source for current notices and contact changes.
Open guide →Source trail
Official sources for this profile
Use these direct agency or licensing links to confirm current instructions before you file, pay, or schedule work. External pages control if their information differs from this directory.
Project questions
Frequently asked questions for St. Clair County
Who handles permitting for this jurisdiction?
This record is marked Municipal Fallback. Confirm whether a city, state agency, or other local authority controls the parcel before filing.
How should I begin an application?
Begin with the online permit gateway listed in the application guide. If the portal does not recognize the address or project type, contact (810) 989-6900 (St. Clair County Administrator/Controller); local building offices vary..
How long might review take?
N/A; no countywide review timeline is published and local permitting timelines vary by enforcing agency.
How are inspections scheduled?
St. Clair County does not provide a unified general-building inspection service. Contact the city, village, or township responsible for the property through the county's local-government directory at https://stclaircounty.org/Offices/569; that local enforcing agency schedules building, electrical, mechanical, and plumbing inspections.
Which codes and exemptions should I review?
Michigan LARA's statewide jurisdiction list revised July 29, 2026 reports no St. Clair County building program. Cities, villages, and townships generally enforce locally for building, electrical, mechanical, and plumbing; Village of Emmett is listed as state-enforced. The current Michigan framework includes the 2021 Michigan Building Code, 2015 Michigan Residential Code for one- and two-family dwellings while the proposed 2021 residential update is stayed, 2021 Michigan Mechanical and Plumbing Codes, 2023 National Electrical Code with Michigan amendments, and current Michigan energy and rehabilitation provisions. The county does not publish a countywide building-exemption list because local agencies issue the permits. Exemptions therefore vary by municipality; ordinary repairs and cosmetic finish work that do not affect structural members, egress, plumbing, electrical, mechanical, public health, or safety are commonly exempt under Michigan code, but the responsible local enforcing agency should confirm before work begins.