If you're buying or selling a home on Long Lake, Hillman Lake, Avalon Lake, Fletcher Pond, or anywhere along the Thunder Bay River, you might assume Michigan requires a septic inspection before the deal closes. Most states with heavy lake and cottage inventory do something like it. Michigan doesn't, and Montmorency County is one of the places where that gap is easy to miss until it's already cost someone money or time.
Montmorency County's environmental health authority is District Health Department No. 4, known locally as DHD4, which also covers Alpena, Cheboygan, and Presque Isle counties. DHD4 does plenty of septic-related work: it issues installation permits, evaluates soil for new systems, and performs what it calls an Existing System Evaluation, or ESE. But an ESE is triggered by a specific event. According to DHD4's own application language, it's used when a property is being added onto, when the use of a building is changing, or when a new structure will partially or completely replace an existing one. Nothing in that description ties the evaluation to the simple fact of a sale.
That distinction matters more than it sounds like it should.
The Pattern Elsewhere Doesn't Include Here
Michigan is the only state without a statewide sanitary code, which means the decision to inspect septic systems at the time of sale is left entirely to each of the state's 45 local health departments. Some have adopted mandatory Time of Sale or Transfer ordinances. Others haven't. A Huron River Watershed Council letter from earlier this year put the count at eleven counties and seven townships or villages statewide with some version of the requirement in place.
Several of those counties sit close enough to Montmorency to shape buyer expectations. Grand Traverse, Emmet, and Charlevoix counties all enforce some form of point-of-sale septic evaluation, and Kalkaska and Manistee counties require a mortgage evaluation of both the septic system and the well before a sale can close. Downstate, Washtenaw, Oakland, Livingston, and Kalamazoo counties all have their own versions of the same rule.
Montmorency isn't on any of those lists.
| County | Point of Sale Septic Requirement | Health Authority |
|---|---|---|
| Montmorency | No countywide mandate identified | District Health Department No. 4 |
| Grand Traverse | Yes | County health department |
| Emmet | Yes | County health department |
| Charlevoix | Yes | County health department |
| Kalkaska | Yes, mortgage evaluation required | District Health Department No. 10 |
| Manistee | Yes, mortgage evaluation required | District Health Department No. 10 |
If you're moving to Hillman from one of those counties, or from anywhere with a similar rule, you may not think to ask about the septic system at all. You'll assume someone already checked. In Montmorency County, unless the sale happens to trigger an addition, a use change, or new construction that replaces an old structure, no one has.
What This Actually Means If You're Selling
The absence of a county mandate doesn't mean the septic system stops mattering. It means the responsibility for verifying it moves from the health department to the transaction itself.
Buyers using conventional financing may not ask for anything beyond a visual walkthrough. Buyers using FHA or VA financing are a different story. Those loan programs typically require proof that the septic system functions properly and meets minimum distance requirements from the well before the lender will close. So even without a county ordinance, a seller can still run into a lender-driven inspection requirement, just later in the process and with less lead time than a seller in a TOST county would have.
There's also the age question. A lot of cottages around Montmorency County were built decades ago, and many septic systems installed before current code are grandfathered in as long as they're still functioning as designed. A system that's undersized for the home it now serves isn't automatically a failed system in the eyes of the health code. It's a system that will need to come up to current standards if the home is ever added onto, converted from seasonal to year-round use, or rebuilt. A private inspection before listing is the only way to know which category your system falls into, and it's the kind of detail an appraiser looks at differently than a general home inspector does, since it can affect both marketability and how a lender's appraisal treats the property.
A private evaluation in Michigan typically runs $300 to $600 depending on scope. Compared to the cost of a deal falling through during underwriting, or a buyer walking away at the eleventh hour over a system nobody looked at, that's a small number.
What This Means If You're Buying
Because Montmorency County doesn't require the seller to produce an evaluation, the request has to come from you. That's a normal, reasonable ask, and most sellers expect it even where it isn't legally required. Ask for the same things a TOST inspection would have covered anyway: how old the system is, when it was last pumped, whether there are permits or as-built drawings on file, and whether the property has ever had a use change that should have triggered an evaluation but didn't.
If your financing is FHA or VA, build the septic and well verification into your timeline early rather than waiting for the lender to flag it. In a county without a mandatory inspection window, that step can otherwise show up later than you'd like, and rural closings already tend to move a little slower than in-town ones.
If a system does fail a voluntary or lender-required inspection, the fix isn't automatically a dealbreaker. Drain field replacement runs roughly $5,000 to $15,000 depending on soil conditions, tank replacement runs $3,000 to $7,000, and most failures fall well short of a full system rebuild. Knowing the number ahead of time turns it into a negotiation point instead of a surprise.
The Part That Could Change This
Michigan lawmakers have tried more than a dozen times over the decades to establish a statewide septic code, and every attempt until now has stalled. That may be changing. State Senator Sam Singh introduced Senate Bill 771 in January 2026, and it cleared the Senate Natural Resources and Agriculture Committee in June 2026 on a party-line vote, advancing to the full Senate floor.
"Right now, Michigan is the only state in the entire country that doesn't have a statewide septic code."
That's Singh's framing of the problem, and the numbers behind it are large. Michigan has roughly 1.3 million septic systems, and the Huron River Watershed Council estimates around 300,000 of them are failing or near failing statewide. SB 771 would require the Department of Environment, Great Lakes, and Energy to build a statewide sewage code within three years of passage, along with a phased inspection schedule that starts with the highest-risk systems: those older than 20 years within 500 feet of surface water, followed by systems 30 years or older.
As of this writing, the bill hasn't come up for a Senate floor vote, and it would still need to pass the House before reaching the governor's desk. If it does eventually become law, the letter from the Huron River Watershed Council notes that existing local time-of-sale ordinances would likely be phased out as the statewide schedule takes over. For a county like Montmorency, where lakefront and river property make up a meaningful share of inventory, that would eventually mean the inspection question stops depending on which side of a county line your cottage sits on.
Until then, the rule stays what it's always been here: nobody checks unless somebody asks.
A Few Quick Questions
Does Michigan require a septic inspection to sell a house? Not statewide. Requirements come from local health departments, and they vary by county and sometimes by township.
Does Montmorency County have a point-of-sale septic ordinance? Based on DHD4's published evaluation criteria and the current list of Michigan counties with time-of-sale ordinances, Montmorency does not appear to have one. Confirm directly with DHD4 before listing or closing, since local rules can be adopted at the township level even where the county doesn't have a blanket requirement.
If there's no requirement, should I still get an inspection? Yes. Lenders on FHA and VA loans will often require one anyway, and a private evaluation before listing gives you time to address any issues on your own schedule instead of the lender's.
Selling or buying a septic-dependent property Up North comes with more moving parts than the median price ever tells you. That's exactly the kind of detail an appraiser-led team catches before it becomes a closing-day problem. If you're weighing a move on a Montmorency County lake or thinking about listing your place this season, Hillman Real Estate would be glad to walk through what your specific property needs before you go under contract. Get in touch and let's talk through it.
