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When a permit is required
Permit triggers and exempt work for Troy
Troy permits electrical, mechanical, plumbing, sewer, and building work; plan review and new construction permits require electronic PDF submission.
- Exempt Exterior concrete flatwork within property lines, including driveways, service walks, and patios
Note: Exempt from building permit does not mean exempt from zoning and other requirements. Confirm with Building Department before proceeding.
- Electronic application
- PDF plans for projects requiring plan review or new construction
- Performance-based compliance report for new residential construction
- Manual J, S, and D support for new residential work where applicable
- Building code
- 2021 Michigan Building Code effective April 9, 2025; 2021 Michigan Plumbing Code; 2021 Michigan Mechanical Code; 2023 National Electrical Code with Michigan amendments; 2021 Michigan Energy Code effective April 22, 2025; residential page notes LARA pause on 2021 MRC implementation and continued use of 2015 Michigan Residential Code framework pending state direction.
- Permit validity
- Commercial applicants should request an extension before permit expiration; failure to request within 30 natural days after expiration causes loss of the permit and a new permit under the new code cycle.
- Owner-builder
- Homeowners use the homeowner BS&A pathway and should verify HOA approvals for items such as fences, pools, decks, patios, additions, new construction, generators, windows, and siding.
- Contractor requirements
- Trade permits and inspections are administered separately; applicants should expect normal Michigan state trade licensing requirements and city registration workflow through the permit process.
Application process
Typical processing: No citywide standard timeline found; next-business-day inspection scheduling is available for requests verified before 2:00 p.m.
- 01 Confirm project scope and permit triggers using Troy Building Department permit requirements and current code pages.
- 02 Prepare electronic application and plan set; Troy states all permits requiring plan review and new construction permits must be emailed in PDF format.
- 03 Submit through BS&A Online or by the electronic method identified on the Building Department pages.
- 04 Pay permit and review fees. Troy notes an over-the-counter processing fee for in-person handling and uses Point and Pay for online payment processing.
- 05 Receive permit issuance after review.
- 06 Schedule inspections through the inspection line or BS&A Online by the posted cutoff time.
- 07 Complete required inspections and close out the permit.
Typical processing time: No citywide standard timeline found; next-business-day inspection scheduling is available for requests verified before 2:00 p.m.
Fee schedule
Troy building permit fees
Credit and debit payments through Point and Pay carry a 2.5% fee with $2 minimum; ACH is $3 up to $10,000 and $6 at $10,000 or more.
Fees change periodically. Confirm at the official fee schedule ↗ before budgeting.
Required inspections
Scheduling and sequence
- 248-689-5744 inspection line (phone)
- BS&A Online (online)
- Scheduling deadline
- Requests accepted from 8:00 a.m. to 2:00 p.m.; next-business-day cutoff is 2:00 p.m.
- Inspection hours
- Monday-Friday, 8:00 a.m. to 2:00 p.m.
Typical sequence: Permit issuance, rough and trade inspections as applicable, final inspection, and closeout.
Frequently asked
Common questions about Troy permits
01 Do I need a building permit in Troy, MI? ▸
02 How do I apply for a building permit in Troy, MI? ▸
03 How long does it take to get a building permit in Troy, MI? ▸
04 What work is exempt from building permits in Troy, MI? ▸
05 How do I schedule a building inspection in Troy, MI? ▸
Educational reference. Permit rules and fees change — confirm current requirements directly with Building Department, City of Troy before applying. Jaspector is not legal advice.