Flat Rock, Michigan Building Permit Guide

In the City of Flat Rock, permits come from the Building and Safety Department at City Hall, 25500 Gibraltar Road ((734) 782-0445, Monday to Friday, 8 a.m. to 4:30 p.m.), directed by David Popp. The city enforces the building, electrical, mechanical and plumbing codes itself; Wayne County has no building program. Send the application by email, mail or the City Hall drop box, and allow up to a couple of weeks for in-house review. Under the fee schedule City Council approved on November 3, 2025, a building permit is $75 for the first $1,000 plus $10 for each additional $1,000 up to $50,000, plus plan review at 25% of the permit fee and a $45 administration fee.

What requires a building permit in Flat Rock?

The Building and Safety Department says a building or zoning permit is required before any project starts, and work done without a permit and inspector approval earns a civil municipal infraction. The fee schedule adopted in November 2025 shows how wide the building permit reaches: its valuation fee expressly includes concrete projects, driveways, patios, sidewalks, roofs, porches, siding, sheds and windows.

The city posts checklists for accessory structures (sheds and garages), pools, decks, fences and replacement windows, plus a residential wood deck guide. Electrical, mechanical and plumbing work each need their own permit.

What Flat Rock decides and what the state holds

The construction code is the state’s, and the city cannot amend it. The Bureau of Construction Codes’ Statewide Jurisdiction List shows Flat Rock as a local enforcing agency for all four codes, with Wayne County running no county program, so the city reviews, permits and inspects all of it. What the city sets locally is zoning, its fee schedule, contractor registration, the resale certificate of occupancy, rental certificates of compliance and vacant structure registration. The director’s memo to City Council says the November 2025 schedule replaced a collection of partly compiled schedules approved over 20 years that contradicted each other, added the ICC building valuation guide as the cost reference and simplified plan review to a percentage of the permit fee.

Flat Rock building department: who handles permitting

The Building and Safety Department issues building, zoning and trade permits, reviews plans in house, inspects, runs the resale and rental inspection programs and supports the Planning Commission and Zoning Board of Appeals. For new homes and commercial buildings it sends plot plans to the city’s engineers (Raines) and new commercial submissions to the city’s planners (McKenna), and plans also go to the Fire Department.

Flat Rock permit types

The Applications page carries the building and zoning permit applications, separate electrical, mechanical, plumbing and mechanical fire suppression applications, contractor registration, a deck form, a neighbor fence authorization form, a gas pressure test affidavit, a furnace and boiler equipment certification form, a right-of-way permit application and rental registration. The form titled “Affidavit for Homeowner Application” is a property owner affidavit stating that a home is not being rented, used with the city’s rental registration ordinance, not a permit form.

Residential permits

• What to send. The building application asks for the property owner, architect or engineer and contractor, the estimated project cost, a signed customer contract and a plot plan showing all existing and proposed buildings.
• Pricing. The department reviews the application and then contacts you with the permit price; send a check by mail or the drop box, or pay online.
• Decks, sheds, pools, fences and windows. Use the matching checklist; pools are priced at $75 for the first $2,000 plus $10 per additional $1,000, plus electrical and mechanical permits as needed.
• Home sales. Since July 6, 2020 every residential home sold needs a resale inspection and certificate of occupancy.

Building or remodeling a home here? Alliance handles residential permit filing, so the crew isn't waiting on the counter.

Commercial permits

New commercial projects go to the Planning Commission when the zoning ordinance requires it, and their submissions are reviewed by the city’s planners and engineers as well as the department. Some plans require a site plan deposit or performance bond. A certificate of occupancy for a non-residential occupancy costs 5% of the building permit fees, at least $200 and no more than $500. Fire suppression systems have their own permit and plan review fees.

For tenant improvements and new commercial builds, Alliance handles commercial permit expediting through issuance. More on this: commercial building permits explained.

What comes before the building permit

• Zoning. Zoning permits follow the same valuation table for pools, fences, signs, concrete and detached decks. Projects that need the Planning Commission, which meets on the fourth Monday at 6 p.m., are emailed to the department with a completed application.
• Variances. The Zoning Board of Appeals meets on the second Monday at 7 p.m. in City Hall Conference Room A; file 20 days before the meeting, and the city mails a 300-foot notice and publishes the hearing 15 days before.
• Floodplain. Development in the floodplain needs a $50 city floodplain development permit plus a bond; the city posts its flood insurance rate maps.
• Soil erosion. Wayne County is the soil erosion agency for Flat Rock: earth changes over one acre or within 500 feet of surface water need a county permit before earthwork (734-326-3936).
• Roads and water. Work in city right-of-way uses the city’s right-of-way permit; county road work needs the Wayne County DPS Permit Office (734-858-2774); new builds are routed for water and sewer review.

Flat Rock permit costs and fees

City Council approved the revised building and zoning fee schedule on November 3, 2025 (New Business item 10F, motion carried 5-0). Every permit carries a $45 administration fee on top of the permit, review and bond amounts, and plan examination fees are paid at application and are not refundable.

Worked example: work valued at $200,000 falls in the $50,001 to $500,000 band, so the permit is $565 plus 150 × $8, or $1,765; plan review adds 25%, $441.25, and the administration fee $45, for $2,251.25 before any trade permits. The bands join exactly ($565 at $50,000 and $4,165 at $500,000), and the director may use the current ICC building valuation table for project cost. Older pages still show earlier figures: the 2024 building application gives a $65 minimum permit fee and the Zoning Board of Appeals page a $200 fee, while the adopted schedule sets $75 and $350. If a permit is cancelled within six months before any inspection, the city refunds 60% of the fees paid, minus the $45 administration fee.

Trade permits and who may pull them

The city issues and inspects electrical, mechanical and plumbing permits itself, and the trade applications set a minimum permit fee of $110, made up of a $65 minimum plus the $45 administration fee. The electrical form lists item fees and asks for the contractor license and master license numbers.

• Electrical. Work may not start until the application is filed, and nothing may be covered before inspection; re-inspection is $85.
• Mechanical. The forms page also carries a gas pressure test affidavit and a furnace and boiler equipment certification form for mechanical work.
• Fire suppression. Sprinkler work uses the mechanical fire suppression application, with plan review from $300 for 1 to 100 heads.
• Registration. Contractors register with the city: builders and maintenance and alteration contractors and electricians pay $50 a year, plumbing and mechanical contractors $15 until their license expires.

The electrical application includes a homeowner affidavit: the owner certifies that the work will be installed by the owner in the home they live in or are about to occupy, kept uncovered until the electrical inspector approves it, and that the owner will arrange the inspections. The city also posts a guide on hiring a contractor.

How to apply for a Flat Rock building permit

Review, corrections and what causes delay

If the reviewer disapproves the plans, the city sends a letter listing what is missing, and the corrected plans go through a second review. If the letter says the project needs a Zoning Board of Appeals variance, call the building clerk for meeting dates; if you do not want to go before the board, new plans that meet the zoning ordinance are required. Commercial submissions wait for the planners’ recommendations, and Planning Commission or ZBA cases follow the boards’ monthly schedules and notice periods.

Inspections and certificates in Flat Rock

All inspections are scheduled with the Building and Safety Department. One inspection is included with a permit; a failed inspection is re-inspected for $85, and post-hole, final, special or extra inspections are $50 each. Inspectors keep set schedules:

A resale certificate of occupancy starts with the Residential Resale Inspection Application and a $200 fee paid before the inspection, with one follow-up visit included. If the buyer takes on the repairs, buyer and seller sign an Affidavit to Assume Repairs and the city issues a temporary certificate; a bond may be required, adding a $25 processing fee to the $85 re-inspection, and the new owner has three months to finish. Life-safety items must be fixed before anyone moves in. Rentals need a $350 certificate of compliance inspection every three years.

Michigan building code in Flat Rock

FEMA’s Community Status Book lists the City of Flat Rock (community 260224) as a participating National Flood Insurance Program community, with flood maps effective October 21, 2021; the city posts six flood insurance rate map panels and its revalidated letters of map change, and charges $50 plus a bond for a floodplain development permit.

Michigan enforces one statewide construction code under the Stille-DeRossett-Hale Single State Construction Code Act (1972 PA 230); local units cannot amend it, and enforcement sits with the city, village or township, a county program or the state Bureau of Construction Codes, sometimes split by trade. Michigan rules

Flat Rock permit search and official resources

For the status of a permit or inspection, call the Building and Safety Department at (734) 782-0445; online, the city takes permit payments by invoice number. Copies of permit files and other records are requested through the City Clerk’s Freedom of Information Request page, and the Clerk’s Office also posts City Council minutes and agendas, where fee and ordinance changes appear.

• Flat Rock Building and Safety Department
• Applications and forms
• Fee schedules page
• Building and zoning fee schedule approved November 3, 2025
• In-house review steps
• Building permit application
• Electrical permit application
• Pay for your permit online
• Certificate of occupancy for resale
• Planning Commission
• Zoning Board of Appeals
• Flood insurance and floodplain maps
• Wayne County soil erosion permits
• Wayne County road right-of-way permits
• BCC Statewide Jurisdiction List
• FEMA Community Status Book, Michigan

Flat Rock building permit FAQs

How much is a building permit in Flat Rock?

$75 for the first $1,000 of value plus $10 per additional $1,000 up to $50,000, plus 25% for plan review and a $45 administration fee; $200,000 of work comes to $2,251.25.

Do I need a permit for a roof, siding or windows?

Yes. The building permit fee schedule expressly covers roofs, siding and windows, as well as driveways, patios, sidewalks, porches and sheds.

How do I submit a permit application?

By email to the building clerk, by mail to City Hall or in the City Hall drop box; the department prices the permit after review.

How long does review take?

The city says in-house review may take up to a couple of weeks; disapproved plans get a letter and a second review.

Do I need an inspection to sell my house?

Yes. Every residential sale needs a resale inspection and certificate of occupancy; the inspection is $200, paid in advance.

Can a homeowner pull an electrical permit?

Yes, by signing the homeowner affidavit on the electrical application for work in the home the owner lives in or is about to occupy.

What does a Zoning Board of Appeals hearing cost?

$350 for a single-family property under the November 2025 schedule, $500 for other uses; the board meets on the second Monday at 7 p.m.

Simplify Flat Rock permitting with Alliance Permitting

Alliance Permitting is a permit documentation and submission company in Michigan. We prepare your paperwork, file it correctly and coordinate with the permitting authority through issuance. We are not a contractor and we do not perform licensed plan review or inspections; that work stays with your licensed team and the jurisdiction.

This guide is provided by Alliance Permitting for general information about Flat Rock permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.