Michigan Owner-Builder Permit Guide
By a retired general contractor with 15+ years building custom homes — about the author. Last updated: May 2026.
Yes. Michigan requires a state Residential Builder license to build homes for other people, but a homeowner building their own residence is exempt — this is written into statute at MCL 339.2403(b), which lets "an owner of property" build "a structure on the property for the owner's own use and occupancy" without a license. You'll act as your own general contractor, sign a homeowner affidavit at the building department, and build to the 2015 Michigan Residential Code (based on the 2015 IRC), administered statewide by the LARA Bureau of Construction Codes but enforced by your local municipality. Michigan also lets owner-occupants do their own electrical, plumbing, and mechanical work on a single-family home they own and live in (with a homeowner permit) — even though those trades are state-licensed for contractors. The catch: the exemption is keyed to occupancy, so it's for the home you'll actually live in, not a spec house to flip.
| Requirement | Owner-builder in Michigan |
|---|---|
| State builder license to build your own home | Not required — homeowner exemption under MCL 339.2403(b) for a structure for your own use and occupancy |
| Who enforces residential permits/code | Local enforcing agency (city/township/county); LARA Bureau of Construction Codes is the default where no local agency exists. Homes follow the 2015 Michigan Residential Code (2015 IRC base) |
| Can a homeowner pull their own permit | Yes — sign a homeowner affidavit; the home must be your primary, occupied residence (or one you intend to occupy) |
| DIY electrical, plumbing & mechanical | Allowed on a single-family home you own and occupy if you pull the homeowner permit yourself and pass inspection — licensed contractors may NOT work under a homeowner permit |
| Licensed trades (if you hire out) | Electrical, plumbing, and mechanical contractors are state-licensed through LARA; a Residential Builder license is required for anyone building homes for others |
| Current code editions | 2015 Michigan Residential Code (2015 IRC) and 2015 Michigan Uniform Energy Code (2015 IECC) for homes; electrical follows the 2023 NEC (Part 8, effective March 12, 2024). The 2021 residential and energy code adoption was delayed by court order — those 2015 editions remain in effect |
Michigan is a friendlier owner-builder state than its reputation suggests. Yes, the state licenses residential builders — but the homeowner exemption is right there in the Occupational Code, and unlike a few states, Michigan also lets you do your own electrical, plumbing, and HVAC on the home you'll live in. The trade-off is a single statewide code (no patchwork to shop), a deep 42-inch frost line, and real winter weather to design around.
The 2015 Michigan Residential Code is adopted at the state level under the Stille-DeRossett-Hale Single State Construction Code Act (PA 230 of 1972) and enforced by local "enforcing agencies." Where a city, township, or county hasn't taken on enforcement, the LARA Bureau of Construction Codes does it for them — so unlike rural Ohio or Texas, there is no truly unregulated corner of Michigan.
Michigan Building Code Overview
Michigan operates under a single statewide code with local enforcement model. The state writes and adopts the code; cities, townships, and counties enforce it through their own building departments, and LARA's Bureau of Construction Codes covers any jurisdiction that hasn't opted in.
Current Code Adoption
| Code | Basis & status | Applies to |
|---|---|---|
| 2015 Michigan Residential Code (MRC) | 2015 International Residential Code with Michigan amendments; effective Feb 8, 2016; still current in 2026 | One- and two-family dwellings and townhouses |
| 2015 Michigan Uniform Energy Code (MUEC) | 2015 International Energy Conservation Code with Michigan amendments | Residential energy provisions |
| Electrical: 2023 NEC (Part 8 rules) | 2023 National Electrical Code as adopted by Michigan Part 8 rules, effective March 12, 2024 (separate from the residential code, so not affected by the court order) | Confirm the exact NEC edition your jurisdiction enforces before wiring |
| 2015 Michigan Building/Mechanical/Plumbing Codes | 2015 I-Codes | Non-residential (1-2 family dwellings use the MRC's own provisions) |
| 2021-edition codes | Adoption of the 2021 MRC and 2021 IECC residential provisions was delayed by court order (a stipulated order in effect as of mid-2025) | Not yet in force for residential — the 2015 editions remain valid; confirm current status with LARA |
Here's the wrinkle worth understanding: Michigan tried to move to the 2021 code editions, but the residential update has been tied up by a stipulated court order, so as of 2026 the 2015 MRC and 2015 IECC residential provisions remain the codes you build to. This is unusually long for a code to stay frozen, and it's the single most important thing to confirm with LARA or your local building department before you draw plans — if the order lifts, the energy requirements in particular get more stringent. Check the LARA Bureau of Construction Codes code books page for the current adopted edition.
Local Enforcement — Statewide, Not a Patchwork
Unlike Ohio, Michigan does not have unregulated counties. Under PA 230 of 1972, every part of the state has building-code enforcement: a local "enforcing agency" if the city/township/county has assumed that responsibility, or the LARA Bureau of Construction Codes by default if it hasn't.
| Jurisdiction type | Who enforces & issues permits |
|---|---|
| Major cities (Detroit, Grand Rapids, Ann Arbor, Lansing, Warren, Sterling Heights) | Local city building department |
| Suburban townships & counties (Oakland, Macomb, Kent, Washtenaw, Livingston) | Township or county building department |
| Rural areas with no local building department | LARA Bureau of Construction Codes (state field offices issue permits and inspect) |
Before anything else, identify whether your parcel is served by a city, township, county, or the state. The same code applies everywhere, but fees, processing times, and the homeowner-affidavit form all come from whichever agency has jurisdiction.
Michigan-Specific Amendments
The MRC modifies the base 2015 IRC in several areas that matter for owner-builders:
- Frost depth: A flat 42 inches below grade statewide for exterior footings (MRC R403.1.4) — one of the deeper requirements in the country, and notably deeper than Ohio or Indiana
- Energy: The Michigan Uniform Energy Code amends the 2015 IECC — most notably it allows R-38 ceilings in Climate Zone 5A (rather than R-49) and uses a uniform U-0.32 window maximum across all zones
- Radon: MRC Appendix F (passive radon controls) is mandatory only in nine designated Zone 1 counties and recommended elsewhere — see the radon section below
- Sprinklers: Residential fire sprinklers are not mandated in one- and two-family dwellings (the IRC sprinkler requirement was not adopted)
- Snow loads: Ground snow loads run high in the north and the lake-effect belts; roof structural design must reflect local ground snow load values
Michigan's statewide 42-inch frost depth is the minimum. The building official can require deeper footings based on soil, groundwater, and local conditions — verify with your jurisdiction before pouring.
Michigan Owner-Builder Laws
Michigan licenses residential builders — but the law carves out an explicit exemption for a property owner building their own home. That exemption is the foundation of every owner-build in this state.
Michigan regulates home construction under Article 24 of the Occupational Code (Public Act 299 of 1980), administered by the LARA Bureau of Construction Codes. A "Residential Builder" is broadly defined as someone who, for compensation other than wages for personal labor, builds or contracts to build a residential structure for another person. Build for someone else for money without that license and it's a misdemeanor — up to a $500 fine or 90 days for a first offense under MCL 339.2412.
The Homeowner Exemption (MCL 339.2403)
The key statute is MCL 339.2403, which lists who may build without a license. Subsection (b) is the one that matters:
"An owner of property, with reference to a structure on the property for the owner's own use and occupancy."
That's it — short, clear, and statewide. Because the exemption is written into state law, you don't depend on a friendly local policy the way Ohio owner-builders do; the right travels with you to any jurisdiction in Michigan.
The same statute (subsections g, h, i) also exempts licensed electrical, plumbing, and mechanical contractors from the builder license when they're doing their own trade — which is why your subs need their trade license but not a builder's license.
Critical Restrictions and Requirements
The exemption is keyed to occupancy. The phrase "own use and occupancy" is doing real work. The exemption is for the home you will actually live in — not a house you build to sell. Michigan does not put an explicit "you can't sell for X years" number in the statute, but building a home you never intend to occupy and selling it is exactly what the Residential Builder license is for. If you build, occupy, and later sell for legitimate reasons, that's a homeowner who moved. If you build to flip, you needed the license. Build the home you mean to live in.
The homeowner affidavit. Every building department requires you to sign a homeowner notice/affidavit acknowledging that you're acting as your own builder. A representative version (City of Milan) reads:
"Under Michigan State Law, if you choose to apply for and receive a 'Homeowner Permit' it will be issued under the expectation that you are as qualified and as knowledgeable as a licensed contractor... Licensed contractors may NOT work under a homeowner permit."
That second sentence is the trap people fall into — see below.
You can't hire a licensed contractor under your homeowner permit. This is the big one and it's the opposite of how some states work. In Michigan, a homeowner permit is for work you do yourself. If you're going to hire a licensed builder or trade contractor to do a scope, that contractor pulls their own permit under their own license — you can't pull a "homeowner permit" and have a licensed pro work under it. So the practical model is: pull homeowner permits for the work you'll genuinely do yourself, and have each licensed sub you hire pull their own.
Liability is yours. The affidavit makes explicit that as the permit holder you take on "all of the liability and responsibility that a licensed contractor would normally assume," and you're responsible for correcting any code violations.
Doing Your Own Trade Work
This is where Michigan is genuinely good for hands-on builders. State law lets an owner-occupant do their own electrical, plumbing, and mechanical work on a single-family home they own and live in — each under a homeowner permit:
| Trade | Homeowner rule |
|---|---|
| Electrical | A homeowner may perform electrical work in a single-family home and accompanying outbuildings owned and occupied (or to be occupied) by the homeowner, with a homeowner electrical permit — no electrical license required |
| Plumbing | A homeowner may install plumbing, building sewer, or private sewer in their own single-family dwelling if a permit is secured — no plumbing license required |
| Mechanical (HVAC) | An owner of a single-family dwelling who occupies (or will occupy) the residence may perform mechanical work with a homeowner mechanical permit — no mechanical license required |
It must be a single-family home you own and occupy (or will occupy as your primary residence), you must pull the homeowner permit yourself, and the work is held to the same code as a licensed contractor's. Remember: you can't have a licensed contractor do the work under your homeowner permit — that pro pulls their own.
Liability and Insurance
As an owner-builder in Michigan:
- You're personally liable for injuries on-site (carry workers' comp if you pay any labor)
- You can usually obtain builder's risk insurance, but rates run higher than for licensed builders
- Many construction lenders require owner-builders to carry liability insurance and may scrutinize the loan more closely
- Michigan's seller-disclosure law applies for years after you eventually sell
Seller Disclosure
Michigan's Seller Disclosure Act (MCL 565.951 et seq.) requires sellers of one- to four-unit residential property to complete a Seller's Disclosure Statement covering the condition of the home and known defects. Owner-built homes don't have to be labeled as such, but known defects, unpermitted work, or code issues must be disclosed when you sell.
Permit Costs in Michigan
The figures below are planning estimates compiled from public fee schedules. Actual costs change often, vary by jurisdiction, and most are valuation-based (tied to the cost of construction, not a flat number) — confirm exact fees with your enforcing agency before budgeting.
Michigan permit fees are moderate — higher than Ohio or Indiana, lower than the coasts. Most jurisdictions calculate the building permit from construction valuation (using the ICC Building Valuation Data tables) rather than a per-square-foot rate, then add separate electrical, plumbing, and mechanical permit fees plus a state-mandated surcharge.
Michigan adds a small statewide surcharge to building permits that funds the Construction Code Fund (set annually under PA 230 of 1972). It's typically a few dollars per permit on residential work — small, but it shows up as a line item.
Major Metro Areas
Estimates below are for a typical 2,000 sq ft home (roughly $300K–$400K construction valuation).
| Cost item | Amount |
|---|---|
| Building permit (valuation-based, ICC schedule) | ~$1,300–$2,200 (e.g., Macomb Township: $122 + $6 per $1,000 of valuation over $10,001, plus a $150 application fee) |
| Plan review | Often a percentage of the building permit; ~$200–$600 |
| Trade permits (electrical, plumbing, mechanical) | $450–$900 combined |
| State Construction Code Fund surcharge | Small per-permit charge |
| Water/sewer tap & connection fees | $5,000–$15,000 depending on community |
| Total typical cost | $7,000–$18,000 (tap fees dominate) |
| Cost item | Amount |
|---|---|
| Building permit (valuation-based via Buildings, Safety Engineering & Environmental Dept) | ~$1,200–$2,000 |
| Plan review | ~$300–$600 |
| Trades | $500–$900 combined |
| Tap/connection fees | $4,000–$10,000 |
| Total | $6,500–$13,000 |
| Cost item | Amount |
|---|---|
| Building permit (valuation-based; base fee on first $1,000 + increment per additional $1,000) | ~$1,200–$2,000 |
| Administrative fee | $210 (effective July 2025) |
| Trades | $450–$850 combined |
| Tap/connection fees | $4,500–$11,000 |
| Total | $6,800–$14,000 |
| Cost item | Ann Arbor (Washtenaw) | Lansing (Ingham) |
|---|---|---|
| Building permit (valuation-based) | ~$1,500–$2,400 | ~$1,100–$1,800 |
| Trades | $500–$950 | $450–$800 |
| Tap/connection fees | $6,000–$14,000 | $4,000–$9,000 |
| Total | $8,000–$17,000 | $5,800–$11,600 |
The Ann Arbor/Washtenaw area is among the more expensive and more strictly reviewed jurisdictions in Michigan, and Washtenaw is one of the nine counties where radon-resistant construction is mandatory — budget accordingly.
Suburban & Outstate Counties
| County / area | Notes | Building permit + trades |
|---|---|---|
| Oakland County townships | Affluent suburbs; higher valuations push fees up | $1,800–$3,200 |
| Macomb County townships | ICC valuation schedule; moderate | $1,500–$2,800 |
| Livingston County | Fast-growing exurb between Detroit and Lansing | $1,400–$2,600 |
| Ottawa County (Holland/Grand Haven) | West Michigan, growing | $1,300–$2,400 |
| Traverse / Grand Traverse County | Northern Lower Peninsula; second-home market | $1,400–$2,600 |
Rural & State-Enforced Areas
In rural areas where no local building department exists, the LARA Bureau of Construction Codes issues permits and inspects directly under its own statewide fee schedule.
| Item | Note |
|---|---|
| Building permit (LARA BCC fee schedule) | Valuation-based under the state BCC fee schedule |
| Trade permits (state-issued) | Separate electrical, plumbing, mechanical permits through LARA |
| Typical combined permit cost | $1,200–$2,500 for a 2,000 sq ft home |
| Septic & well (Upper Peninsula / rural) | Add $10,000–$30,000+ — see below |
Hidden Fees
| Fee | Typical amount / note |
|---|---|
| Water/sewer tap & connection fees | Often the largest single charge in metro areas — $4,000–$15,000 |
| Soil erosion / sedimentation control permit (SESC) | $100–$400; required for sites disturbing 1+ acre or near water under Part 91 (NREPA) |
| Driveway / road tie-in permit (county road commission) | $150–$500 |
| Septic permit, perc test & design | $500–$1,500 (rural) |
| Well permit | $200–$500 (rural) |
| Radon rough-in (9 Zone 1 counties) | $400–$900 added to build cost where required |
| State Construction Code Fund surcharge | A few dollars per permit, statewide |
Processing Timelines
Most Michigan residential permits process in 1–4 weeks. The state has invested in online permitting (Accela) that can issue a permit number in minutes for simple work, while full plan review for a new house takes longer.
| Jurisdiction | Time to permit |
|---|---|
| Detroit | 4–8 weeks |
| Ann Arbor | ~4 weeks first review; 1–2 weeks for resubmittals |
| Grand Rapids | 3–6 weeks |
| Lansing | 3–5 weeks |
| Oakland / Macomb townships | 2–5 weeks |
| LARA state-enforced rural areas | 1–3 weeks (plan review ~3–5 business days at some offices) |
Energy Code Requirements
Michigan sits in Climate Zones 5A, 6A, and 7 — all cold — so the energy code is more demanding than Ohio's. The good news for owner-builders: it's still the 2015 IECC (with Michigan amendments), not the more aggressive 2021 edition, which remains delayed.
| Requirement | Zone 5A (most of the Lower Peninsula: Detroit, Grand Rapids, Lansing, Ann Arbor) | Zone 6A (northern Lower Peninsula, eastern UP) | Zone 7 (western Upper Peninsula) |
|---|---|---|---|
| Ceiling insulation | R-38 | R-49 | R-49 |
| Wood-framed wall | R-20 cavity or R-13 + R-5 continuous | R-20 or R-13 + R-5 | R-20 or R-13 + R-5 |
| Basement wall | R-13 or R-10 continuous | R-19 or R-15 continuous | R-19 or R-15 continuous |
| Crawlspace wall | R-19 or R-15 continuous | R-19 or R-15 continuous | R-19 or R-15 continuous |
| Windows (fenestration) | U-0.32 max | U-0.32 max | U-0.32 max |
| Air leakage | Tested; air-sealing required per IECC | Tested | Tested |
Michigan's amended 2015 energy code allows R-38 ceilings in Zone 5A (the base 2015 IECC would call for R-49), provided full-height insulation extends over the wall top plate at the eaves. Zones 6A and 7 require R-49. Confirm the detail your inspector wants.
Foundation and Frost Depth
| Region | Minimum frost depth |
|---|---|
| Statewide baseline (MRC R403.1.4) | 42" below grade |
| Northern Lower Peninsula & Upper Peninsula | 42" minimum; building official may require deeper on a given site |
| Frost-protected shallow foundations | Permitted as an engineered alternative per R403.3 |
A flat 42-inch frost depth statewide means deeper footings, taller frost walls, and more concrete than warmer states — a real line item. Most Michigan homes are built over full basements partly for this reason: once you're digging that deep, a basement is cheap square footage.
Inspection Requirements
| # | Inspection | When |
|---|---|---|
| 1 | Footing | After excavation, before pour |
| 2 | Foundation / damp-proofing | After forms/rebar, before backfill |
| 3 | Underground plumbing | Before slab pour |
| 4 | Underground electrical | If applicable, before slab |
| 5 | Rough framing & sheathing | — |
| 6 | Electrical rough-in | — |
| 7 | Plumbing rough-in | — |
| 8 | Mechanical rough-in | — |
| 9 | Insulation & vapor barrier | Before drywall |
| 10 | Drywall / fire-stopping | Some jurisdictions |
| 11 | Final electrical | — |
| 12 | Final plumbing | — |
| 13 | Final mechanical | — |
| 14 | Final building / Certificate of Occupancy | — |
Typically 10–14 inspections. In Michigan you'll often schedule one trade at a time (electrical, plumbing, and mechanical inspections may be done by different inspectors, especially in state-enforced areas). Schedule a few days ahead; many jurisdictions and the state offer next-day inspections via the Accela system.
Radon Requirements
Radon is a real issue in Michigan — elevated levels have been found in every county. But the mandatory radon-resistant construction requirement in MRC Appendix F applies only in the nine counties the code designates as Zone 1 (the highest EPA radon zone):
| Required (Zone 1) counties | Status elsewhere |
|---|---|
| Branch, Calhoun, Cass, Hillsdale, Jackson, Kalamazoo, Lenawee, St. Joseph, Washtenaw | Appendix F is recommended but not mandated in the other 74 counties — though a local jurisdiction can adopt it |
Where required (or where you choose to do it), passive radon-resistant construction means:
- Gas-permeable layer (4" of clean gravel) under the slab
- Soil-gas-retarder membrane (polyethylene) over the gravel
- A 3" or 4" vent pipe routed from the sub-slab up through the roof
- An electrical junction box near the vent pipe for a future fan
- Sealing and labeling at penetrations
It adds roughly $400–$900 during construction and is dramatically cheaper than retrofitting later. Given that elevated radon has been measured in all 83 Michigan counties, this is one of the easiest good decisions an owner-builder can make — and future buyers will ask.
Special Michigan Considerations
Lake-Effect & Heavy Snow Loads
Michigan's lake-effect snowbelts (west Michigan downwind of Lake Michigan, and the Upper Peninsula) and the northern Lower Peninsula carry some of the highest ground snow loads in the Midwest. Roof structural design must use the local ground snow load value.
Roof structural calculations must account for:
- Ground snow load: roughly 30–40 psf across much of the Lower Peninsula, and substantially higher (50–70+ psf) in the western Upper Peninsula and lake-effect belts — use your local value
- Roof snow load (per ASCE 7): derived from the ground snow load, slope, and exposure
- Drift loads: significant at roof step-downs, dormers, and against walls
- Ice dams: cold-climate detailing — generous attic insulation, continuous ventilation, and ice-and-water shield at eaves — is essential, not optional
Deep Frost & Basements
Michigan's 42-inch frost line (see above) makes full basements the default. Build the basement: it's the cheapest conditioned-or-conditionable square footage you'll ever add, it gets you below the frost line anyway, and it's where Michigan buyers expect mechanical systems and storage to live.
Radon (Statewide Concern)
Covered above — mandatory in nine counties, smart everywhere. Michigan's EGLE (Department of Environment, Great Lakes, and Energy) runs the Indoor Radon Program and offers test kits; design the passive rough-in regardless of your county.
Wetlands, Inland Lakes & Shoreline
Michigan has more inland lakes and freshwater shoreline than almost any state, and strong environmental rules to match. If your lot is near water or wetlands:
- Soil Erosion and Sedimentation Control (SESC) permits are required under Part 91 of NREPA for earth changes near water or disturbing one or more acres — administered by the county
- Wetland, inland lake & stream, and high-risk erosion / critical dune permits may be required from EGLE for work in regulated areas
- Floodplain development near rivers and the Great Lakes triggers additional review
Septic Systems (Rural Areas)
County health departments (under the Michigan Department of Health and Human Services framework) regulate on-site septic. Michigan is the only state without a statewide septic code, so rules vary significantly by county — confirm locally.
| Item | Cost |
|---|---|
| Percolation / soil evaluation | $300–$700 |
| Standard gravity drainfield system | $8,000–$16,000 |
| Engineered / mound or aerobic system (poor or high-water-table sites) | $15,000–$30,000+ |
| Pretreatment on tight soils | $18,000–$30,000 |
Wells
Private wells are permitted through the county health department under Michigan's Part 127 (Public Act 368) framework.
| Item | Cost |
|---|---|
| Drilling | $25–$45/foot |
| Typical 100–250 ft well | $5,000–$12,000 |
| Pump and pressure tank installation | $1,800–$3,500 |
Top Counties for Owner-Builders
1. Livingston County (between Detroit and Lansing)
- Pros: Fast-growing exurb, good schools, reasonable fees, strong resale, easy commute to both metros
- Cons: Land prices climbing; deep frost and snow like the rest of the state
- Best for: Owner-builders wanting metro access with a rural feel
2. Ottawa County (Holland / Grand Haven, west Michigan)
- Pros: Booming west-Michigan economy, lakeshore proximity, strong appreciation, efficient building departments
- Cons: Lake-effect snow belt — engineer roofs carefully
- Best for: West-Michigan owner-builders prioritizing growth and lifestyle
3. Kent County (Grand Rapids metro)
- Pros: Strong economy, good resale, professional building departments, lots of qualified trades
- Cons: Higher metro fees; competitive land market
- Best for: Owner-builders wanting a city with momentum
4. Oakland County (Detroit's affluent north suburbs)
- Pros: Best resale values in the state, excellent schools, deep pool of trades
- Cons: Among the highest fees and land prices; stricter township review in some communities
- Best for: Owner-builders prioritizing long-term resale
5. Grand Traverse County (Traverse City, northern Lower Peninsula)
- Pros: Desirable second-home/retirement market, strong values, beautiful setting
- Cons: High snow loads, shorter building season, premium land
- Best for: Owner-builders building a forever home or northern retreat
Most Expensive / Challenging Areas
The jurisdictions below carry the highest fees, strictest review, or toughest site conditions in the state — go in with eyes open.
- City of Ann Arbor / Washtenaw County: Strict review, higher fees, and mandatory radon-resistant construction
- City of Detroit: Older lots, possible lead/asbestos remediation on existing structures, complex utility connections
- Affluent Oakland County townships: High valuations push valuation-based permit fees up; some communities review aggressively
- Western Upper Peninsula & lake-effect belts: Extreme snow loads, short building season, expensive rural utilities
- Inland-lake and Great Lakes shoreline lots: EGLE wetland/shoreline/dune permitting adds time and cost
Key Resources
- LARA Bureau of Construction Codes (BCC): code adoption, residential builder and trade licensing, state-enforced permits and inspections — michigan.gov/lara/bureau-list/bcc
- Michigan Legislature: the Occupational Code (Act 299 of 1980, Article 24) and the Stille-DeRossett-Hale Single State Construction Code Act (Act 230 of 1972) at legislature.mi.gov
- EGLE (Environment, Great Lakes, and Energy): radon program, wetlands, inland lakes/streams, shoreline, and SESC permits
- County health department: septic and well permits (rules vary by county)
- County road commission: driveway / road tie-in permits
- Your city, township, county, or state field office building department: plan review, permit issuance, inspections, homeowner affidavit
Common Questions
Do I need a license to build my own house in Michigan? No. Michigan requires a Residential Builder license to build homes for others, but a homeowner building their own residence is exempt under MCL 339.2403(b). You sign a homeowner affidavit, act as your own builder, and build to the 2015 Michigan Residential Code.
Can you build your own house without a permit in Michigan? No — Michigan has statewide code enforcement under PA 230 of 1972. Every parcel is covered by either a local building department or the LARA Bureau of Construction Codes. There are no unregulated counties as there are in some other states.
What is the Michigan owner-builder exemption? It's the homeowner exemption in MCL 339.2403(b): "an owner of property" may build "a structure on the property for the owner's own use and occupancy" without a Residential Builder license. It's keyed to occupancy, so it covers the home you intend to live in, not a spec house to flip.
Can a homeowner do their own electrical, plumbing, and HVAC in Michigan? Yes — on a single-family home you own and occupy (or will occupy), you can pull homeowner electrical, plumbing, and mechanical permits and do the work yourself without a trade license. But you cannot have a licensed contractor work under your homeowner permit; that pro pulls their own.
How much does a Michigan owner-builder permit cost? Building permits are usually valuation-based: roughly $1,100–$2,400 for a typical 2,000 sq ft home in major metros, plus $450–$950 in trade permits. Water/sewer tap fees ($4,000–$15,000) are usually the biggest single add-on in metro areas.
Which Michigan counties are best for owner-builders? Livingston, Ottawa, and Kent offer the best combination of growth, resale, and efficient building departments. Oakland has the strongest resale but the highest costs. Watch snow loads in west Michigan and the north, and radon-mandate counties like Washtenaw.
Typical Owner-Builder Timeline
Typical phased timeline for a part-time owner-builder in Michigan. The shorter building season in the north compresses outdoor work into spring–fall.
| Phase | Tasks |
|---|---|
| Months 1–2: Pre-permit | Site evaluation; septic perc test (if rural); architectural plans; energy compliance docs; radon plan (if required); SESC permit if near water |
| Months 2–3: Plan review | Submittal; review comments; resubmittal; homeowner affidavit; permit issuance |
| Months 3–5: Foundation and shell | Excavation and 42" footings; foundation/basement pour; framing, sheathing, roof; windows/doors; framing inspection |
| Months 5–7: Rough-ins | Mechanical, electrical, plumbing rough-ins; insulation and vapor barrier; drywall |
| Months 7–10: Finishes | Cabinets, flooring, trim, paint; final inspections; Certificate of Occupancy |
Total: 9–12 months (part-time owner-builder), longer if winter interrupts foundation/shell work. Full-time in a single building season, 7–9 months.
Final Thoughts for Michigan Owner-Builders
Michigan is a solid, fair owner-builder state. It licenses builders, but it hands homeowners a clean statutory exemption and — better than most states — lets you do your own electrical, plumbing, and HVAC on the home you'll live in. The single statewide code means no jurisdiction-shopping for the rules, and the LARA backstop means you'll never build somewhere with zero oversight (which protects your resale and financing).
The big decisions:
- Confirm the code edition before you draw plans: Michigan is still on the 2015 MRC and 2015 IECC because the 2021 adoption is stuck in court. If that changes, your energy package changes — check with LARA.
- Pick the right county: Livingston/Ottawa/Kent for growth and resale, Oakland for top values (at top cost). Mind snow loads in the west and north.
- Build the basement: With a 42-inch frost line, you're digging deep anyway — a full basement is the best value square footage in the state and the expected norm.
- Engineer for snow: Drift and ground snow loads are real, especially in the lake-effect belts and the UP. Don't eyeball the roof.
- Do the radon rough-in: Mandatory in nine counties, smart in all 83. It's cheap during construction and a selling point later.
- Remember the homeowner-permit rule: Pull homeowner permits for what you'll do; have each licensed sub you hire pull their own under their license.
Methodical owner-builders do well in Michigan. The code is established and stable, the building officials are used to homeowner permits, and the homeowner exemption is right there in black-letter statute. Build the home you mean to live in, design for the winter, and Michigan is a genuinely good place to build it yourself.
Michigan Owner-Builder FAQs
Can you build your own house in Michigan without a license?
Yes. Michigan requires a Residential Builder license to build homes for other people, but a homeowner building their own residence is exempt under MCL 339.2403(b), which allows 'an owner of property' to build 'a structure on the property for the owner's own use and occupancy.' You still need building permits and must build to the 2015 Michigan Residential Code, and you'll sign a homeowner affidavit at the building department acknowledging you're acting as your own builder.
Do you need a builder's license to build your own home in Michigan?
No. The Residential Builder license (under Article 24 of Public Act 299 of 1980) is required to build homes for others for compensation, but it does not apply to an owner building their own residence. The homeowner exemption is written into MCL 339.2403(b) and applies statewide. If you instead build to sell rather than to occupy, you would need the builder license — the exemption is keyed to your own 'use and occupancy.'
Can a homeowner do their own electrical and plumbing in Michigan?
Yes. Michigan lets an owner-occupant pull homeowner electrical, plumbing, and mechanical permits and do the work themselves on a single-family home they own and occupy (or will occupy), without holding a trade license — the work is inspected to the same code as a licensed contractor's. The one firm rule: a licensed contractor cannot perform work under your homeowner permit. If you hire a licensed pro for a scope, that contractor pulls their own permit under their own license.
What is the Michigan owner-builder exemption?
It is the homeowner exemption in MCL 339.2403(b) of the Occupational Code: a property owner may build a structure on their property 'for the owner's own use and occupancy' without a Residential Builder license. Because it's a statewide statute rather than a local policy, the right applies in every Michigan jurisdiction. It is keyed to occupancy, so it covers the home you intend to live in, not a spec house you plan to sell.
Can you build a house without a permit in Michigan?
No. Michigan has statewide building-code enforcement under the Stille-DeRossett-Hale Single State Construction Code Act (PA 230 of 1972). Every property is covered by either a local enforcing agency (city, township, or county) or the LARA Bureau of Construction Codes where no local agency exists. Unlike some states, there are no unregulated rural counties — you will always need a permit and inspections.
What building code does Michigan use?
Homes are built to the 2015 Michigan Residential Code (based on the 2015 IRC, effective February 8, 2016) with the 2015 Michigan Uniform Energy Code (2015 IECC) for energy. Michigan adopted the 2021 editions but the residential update was delayed by a court order, so the 2015 editions remain in effect in 2026. Always confirm the current adopted edition with LARA's Bureau of Construction Codes before drawing plans.
How deep do footings have to be in Michigan?
The Michigan Residential Code (R403.1.4) requires exterior footings and foundation systems to extend at least 42 inches below grade statewide — one of the deeper frost-depth requirements in the country. The building official can require deeper footings based on soil and site conditions. The deep frost line is a big reason most Michigan homes are built over full basements.
How much does a Michigan owner-builder permit cost?
Building permits in Michigan are usually valuation-based (tied to construction cost via the ICC valuation tables) and run roughly $1,100-$2,400 for a typical 2,000 sq ft home in major metros, plus $450-$950 in combined electrical, plumbing, and mechanical permits and a small state surcharge. Water/sewer tap and connection fees ($4,000-$15,000) are usually the largest single add-on in metro areas.
Does Michigan require radon mitigation in new homes?
Only in nine counties. Michigan Residential Code Appendix F requires passive radon-resistant construction in the nine EPA Zone 1 counties — Branch, Calhoun, Cass, Hillsdale, Jackson, Kalamazoo, Lenawee, St. Joseph, and Washtenaw. It is recommended but not mandated elsewhere. Because elevated radon has been measured in all 83 Michigan counties, installing the passive rough-in (a sub-slab gravel layer, membrane, and a vent pipe to the roof with an outlet for a future fan) is worth it everywhere — about $400-$900 during construction.
Which Michigan counties are best for owner-builders?
Livingston, Ottawa, and Kent counties offer the strongest combination of economic growth, resale value, and efficient building departments. Oakland County has the best resale values but the highest fees and land prices. Watch high snow loads in west Michigan and the north, and remember Washtenaw is one of the nine radon-mandate counties.
Related State Guides
Building in a nearby Midwest or Mid-Atlantic state? Check the requirements for:
- Ohio Owner-Builder Permit Guide
- Indiana Owner-Builder Permit Guide
- Illinois Owner-Builder Permit Guide
- Pennsylvania Owner-Builder Permit Guide
See all state owner-builder guides →
Last updated: May 2026. Verified this update: Michigan requires a Residential Builder license to build homes for others (Article 24 of the Occupational Code, PA 299 of 1980), but a homeowner building their own residence is exempt under MCL 339.2403(b) ("an owner of property, with reference to a structure on the property for the owner's own use and occupancy"); homes follow the 2015 Michigan Residential Code (2015 IRC base, effective Feb 8, 2016) and the 2015 Michigan Uniform Energy Code (2015 IECC), with the 2021-edition adoption delayed by court order as of mid-2025; statewide frost depth is 42 inches (MRC R403.1.4); radon-resistant construction is mandatory in nine Zone 1 counties (Branch, Calhoun, Cass, Hillsdale, Jackson, Kalamazoo, Lenawee, St. Joseph, Washtenaw) per MRC Appendix F. Codes are adopted under the Stille-DeRossett-Hale Single State Construction Code Act, PA 230 of 1972 and enforced by local agencies or the LARA Bureau of Construction Codes. The exact NEC edition for residential work, homeowner trade-permit rules, permit fees, and processing times vary by jurisdiction — verify with your specific enforcing agency before relying on any figure here.