In Wayne County — Michigan’s most populous county, home to Detroit — building permits in the county’s unincorporated and township areas come from the township’s local enforcing agency, a county building department where one serves the township, or the State of Michigan BCC where no local agency has assumed enforcement. Incorporated cities and villages issue their own permits.
This guide covers what requires a permit, the Michigan permit process, fees, trade permits, and inspections — so your Wayne County project stays on track.
Wayne County — Michigan’s most populous county, home to Detroit, seat Detroit — contains a mix of cities, villages, and townships. Permits in its unincorporated and township areas are issued by the township’s enforcing agency, a county building department where one serves the township, or the State BCC where no local agency exists; cities and villages issue their own. Confirm which department governs a specific address through the BCC jurisdiction list before you file.
Michigan enforces a single statewide construction code set by the Michigan Department of Licensing and Regulatory Affairs (LARA), Bureau of Construction Codes (BCC), under the Stille-DeRossett-Hale Single State Construction Code Act (Public Act 230 of 1972). Michigan’s defining feature is its enforcing-agency model: a city, village, township, or county may assume administration and enforcement of the state code as the local enforcing agency — running plan review, permits, and inspections on the state’s behalf — and where no local agency has assumed that role, the State BCC is the enforcing agency and issues permits and inspects directly. The BCC keeps a statewide jurisdiction list so you can confirm which agency governs a specific address. Commercial, industrial, and multi-family buildings follow the Michigan Building Code (MBC); one- and two-family dwellings follow the Michigan Residential Code (MRC). As of 2026 the MBC is based on the 2021 IBC (a 2024 edition is in active rulemaking), while the MRC remains on the 2015 IRC pending the state’s residential update — so Michigan runs its commercial and residential cycles on different editions. The Michigan Mechanical Code (2021 IMC) and Michigan Plumbing Code (2021 IPC) took effect in March 2024, and the Michigan Electrical Code adopts the 2023 NEC (effective March 12, 2024). Local enforcing agencies may adopt stricter standards through LARA-approved local rules but cannot fall below the state minimum.
What requires a building permit in Wayne County?
Under the Michigan Building Code and Michigan Residential Code, a permit is required for most construction activities:
Permit required
- New residential and commercial construction, additions, and conversions
- Structural and load-bearing alterations
- Reroofing, siding, windows, doors, decks, porches, and ramps
- Finishing basements and attics
- Electrical service changes and most wiring work
- HVAC installations, changeouts, and ductwork
- Plumbing alterations, repipes, and water heaters
- Detached garages, sheds above the local threshold, fences, pools, and signs
Ordinary repair / minor work
- Painting, wallpapering, tiling, carpeting, and cabinet installation
- Minor repairs and finish work that replace materials in kind
- Gutters and downspouts (in many jurisdictions)
- Small accessory structures below the local size threshold (verify locally)
Thresholds vary by enforcing agency. When unsure, confirm with the building department before starting.
Get the permit issued before starting work. Building without a permit in Wayne County can result in penalties, stop-work orders, and (in many jurisdictions) doubled fees or mandatory correction.
Who handles permitting in Wayne County?
Building permits in Wayne County’s unincorporated and township areas are handled by the local enforcing agency for that township — its own department, a county building department where one serves the township, or the State BCC where none has been established. Each enforcing agency reviews plans, issues permits, and inspects work for the MBC (commercial/multi-family) or MRC (one- and two-family). Township zoning approval is handled separately and must be confirmed before a permit issues.
| Detail | Information |
|---|---|
| Office | Township enforcing agency, Wayne County building department (where one serves the township), or State BCC |
| Apply | MBC / MRC permit application — file with the enforcing agency (online portal where adopted) |
| Government | Wayne County, Michigan — unincorporated & township areas |
| Code authority | LARA Bureau of Construction Codes (BCC) — single statewide code |
| Licensing | State Residential Builder / M&A license (residential over $600); separate LARA electrical, plumbing & mechanical licenses |
| Code | 2021 MBC (commercial) & 2015 MRC (residential), 2023 NEC, 2021 IMC/IPC |
Apply on the MBC / MRC forms. Complete the building permit application with construction documents, confirm zoning approval, verify your Residential Builder / M&A license and trade-contractor licenses are current, pay fees, and post the permit on site before work begins.
Wayne County building permit cost
Michigan permit fees are set by each enforcing agency’s adopted fee schedule — typically by valuation or square footage. Where the State BCC is the enforcing agency, Michigan’s statewide permit fee schedule applies. Plan-review fees are generally due at submission.
| Fee component | How it works |
|---|---|
| Plan review fee | By valuation or square footage, set by the enforcing agency’s adopted fee schedule; generally due at submission |
| Building permit fee | Set by the enforcing agency; where the State BCC is the enforcing agency, Michigan’s state permit fee schedule applies |
| Trade permit fees | Separate electrical, plumbing, and mechanical permit fees by device, fixture, or unit |
| Plan-review surcharge | Some agencies add a plan-review or technology surcharge to the base permit fee |
| Certificate of Occupancy | Separate CO fee where applicable |
| Work without a permit | Penalties, stop-work orders, and (in many jurisdictions) doubled or investigation fees |
Want a precise number for a specific Wayne County project? Send us the scope and valuation and we’ll return a fee estimate alongside a filing timeline.
Wayne County trade permits
Electrical, plumbing, and mechanical work each needs its own permit and an appropriately licensed contractor.
Electrical permits
Required for service installations, panel upgrades, solar PV, EV chargers, and most wiring alterations. Work is inspected against the 2023 Michigan Electrical Code — the 2023 NEC with Michigan Part 8 amendments. Electrical contractors and master/journeyman electricians are licensed by LARA’s Electrical Administrative Board.
Plumbing & gas permits
Required for new plumbing, repipes, water-heater changeouts, fixtures, backflow, and sewer/gas connections. Work is inspected against the Michigan Plumbing Code (2021 IPC-based, Part 7, effective March 2024). Plumbing contractors and master/journeyman plumbers are licensed by LARA’s State Plumbing Board.
Mechanical (HVAC) permits
Required for HVAC installations, changeouts, ductwork, and venting. Work is inspected against the Michigan Mechanical Code (2021 IMC, Part 9A). Mechanical contractors are licensed across HVAC classifications by LARA’s Bureau of Construction Codes.
Fire protection & specialty
Sprinkler, standpipe, and fire-alarm work falls under the MBC fire-protection provisions and is coordinated with the Bureau of Fire Services / State Fire Marshal where applicable; appropriately licensed contractors are required. Pools, demolition, signs, and elevators follow separate MBC tracks.
Verify contractor licensing before you sign. Michigan licenses residential work at the state level: anyone who contracts to build, alter, repair, or improve a residential structure on a project worth $600 or more (combined labor and materials) must hold a LARA Residential Builder license or a Maintenance & Alteration (M&A) Contractor license (Michigan Occupational Code, Article 24; MCL 339.2403). Michigan has no statewide commercial general-contractor license — commercial GC requirements are set locally, and cities such as Detroit and Grand Rapids require their own registration. Electrical, plumbing, and mechanical work is licensed separately through LARA’s Bureau of Construction Codes (the Electrical Administrative Board, State Plumbing Board, and Mechanical Division); a Residential Builder or M&A license does not authorize electrical, plumbing, or mechanical work — those trades require their own licensed contractors. Confirm the state Residential Builder / M&A license and any local commercial registration before work begins.
How to get a building permit in Wayne County
Confirm the enforcing agency & zoning
Identify which agency governs the address — the township's enforcing agency, a Wayne County building department, or the State BCC — using the BCC jurisdiction list. Confirm township zoning approval and determine whether the MBC or MRC governs.
Prepare your application package
Assemble the building permit application with construction documents — drawings sealed by a Michigan-licensed architect or engineer where required — plus scope, valuation, zoning approval, and your Residential Builder / M&A and trade-license numbers.
Submit to the enforcing agency
File with the township enforcing agency, the county building department, or the State BCC (or its online portal) and pay the plan-review fee at submission.
Plan review & corrections
Plan reviewers check for code compliance and issue comments or an approval. Address any corrections and resubmit; approval is required before a permit issues.
Permit issuance & fees
Once plans are approved, zoning is satisfied, and fees are paid, the permit is issued. Post it on site. A permit generally becomes invalid if work is not started within 180 days or is abandoned for 180 days, so schedule your start promptly.
Inspections & Certificate of Occupancy
Schedule the required inspections (foundation, framing, rough-in electrical/plumbing/mechanical, energy, and final) with the enforcing agency. A Certificate of Occupancy is required before legal occupancy of new or changed-use space.
Inspections in Wayne County
Schedule inspections through the Wayne County enforcing agency. Standard checkpoints include foundation, framing, rough-in electrical/plumbing/mechanical, insulation/energy, and final. A Certificate of Occupancy is required before legal occupancy of new or changed-use space.
Address correction notices before requesting a re-inspection; a final inspection and Certificate of Occupancy are required before legal occupancy or use.
Official Wayne County permitting resources
- 🏛️ LARA Bureau of Construction Codes (BCC)
- 📍 BCC — Find the enforcing agency for your address
- 🪪 LARA — Residential Builder / M&A licensing & verification
- 📝 Michigan Construction Code Act (PA 230 of 1972)
- 📄 Wayne County — official municipal site
Simplify Wayne County permitting with Alliance Permitting
Wayne County’s permitting process and Michigan’s enforcing-agency system reward applicants who prepare complete packages, confirm the right agency, and clear zoning from the start. Alliance Permitting is a permit expediter for Wayne County — our permit expediting services pair AI-driven document review with experts who know the Michigan process, so your Wayne County submissions move faster.
Trusted by leading builders and brands — including Dream Finders Homes, Tesla, Verizon, Hyatt, and Sunnova.
Contractors and builders choose Alliance for Wayne County because we deliver:
- Local expertise — we know the Wayne County enforcing agency, Michigan’s BCC enforcing-agency process, and the state’s Residential Builder / M&A and trade-licensing requirements.
- Complete oversight — track every permit and inspection across all your jobs in one place.
- Error-free submissions — AI pre-checks plus expert review catch issues before they become correction cycles.
Alliance Permitting is a permit documentation and submission company: we prepare your paperwork, file it correctly, and coordinate with the enforcing agency through issuance. We are not a contractor and do not perform licensed plan review or inspections; that work stays with your team and the jurisdiction.
Need a Wayne County building permit?
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More Michigan permitting guides
This guide is provided by Alliance Permitting for general informational purposes and reflects publicly available information believed accurate as of June 2026. Permit requirements, fees, and processes change; always confirm current details with the enforcing agency (or the Michigan Bureau of Construction Codes) before filing. This is not legal advice.