Lolo's Water Assessment Won't Hit a Tax Bill Until 2028. It Can Hit a Contract This Month.

In Lolo, Missoula County's proposed Rural Special Improvement District 8490 becomes part of a house sale years before anyone gets a bill for it. The county says assessments for the district would first show up on tax bills in the fall of 2028. By October 17, 2026, all property owners in the district are scheduled to receive a mailed Notice of Hearing.

Most Montana residential sales use the Montana Association of REALTORS® Buy-Sell Agreement. Under its default language, an improvement district that has been "noticed to Seller" is assumed by the buyer at closing unless the parties agree otherwise. Any Lolo home that goes under contract from now on carries a 20-year obligation nobody has paid yet, and the paperwork already says who holds it.

The Clause That Moves First

Here is the full paragraph from the October 2024 version of the residential Buy-Sell Agreement, as it appears in a copy published in a City of Belgrade agenda packet:

"All Special Improvement Districts (including rural SIDs), and all special or non-recurring assessments of any non-governmental association, including those that have been noticed to Seller by City/County but not yet spread or currently assessed or that have been approved but not yet billed or assessed, will be assumed by Buyer at closing unless otherwise agreed."

That language names rural SIDs specifically. It also covers districts that have only been noticed, which is where RSID 8490 will sit from mid-October. A separate paragraph prorates current-year taxes and SID assessments as of the closing date, also "unless otherwise agreed." Nothing for RSID 8490 will be on a current-year bill until 2028, so for now the assumption clause does the work.

The words "unless otherwise agreed" are where buyers and sellers can write something else. The form sets the starting point and leaves the rest to the contract.

Disclosure comes into it too. One version of the Montana Association of REALTORS® Owner's Property Disclosure Statement, a copy dated January 2014, includes a checklist item for "Street or utility improvement planned that may affect or be assessed against the Property." A Lolo seller with a county notice in hand will have a clear answer to that line. We haven't confirmed the exact wording of the association's current disclosure form, but the 2014 copy shows the subject has long been on the checklist.

What the Cost Actually Is

The county's project page sets out the proposed numbers. The district covers 1,390 assessable parcels, and the county proposes splitting the cost equally per parcel.

The common-area figure matters for anyone buying in a subdivision with shared parks or irrigated common ground. The county says those parcels are assessed for a prorated share of the common area, which is how the maximum climbs to $4,436.45.

There are two caveats. First, interest isn't in any of these numbers. The bonds come through the State Revolving Fund, which the county describes as low- or zero-interest loans, and the county says exact rates and per-parcel totals "cannot be determined until the bonds are issued." Second, the sources disagree on the sewer share. Missoula Current quoted Sam Scott of the Clerk and Treasurer's Office at $2,294 for water and $1,989 for wastewater over the life of the bond. The county's posted figure for sewer is $1,698.56. Each owner's mailed notice will list the maximum principal for that parcel, and that notice is the number that counts.

Why the District Is Moving Now

The engineering problem behind the assessment shows that this is not a speculative proposal.

Brent O'Connor, an engineering technician with Missoula County Public Works, told Missoula Current that "the water system has been out of compliance with the Montana Department of Environmental Quality for several years now, mostly with the max daily demand." Lolo runs on three wells. If the largest one failed, the two smaller wells would need to pump 1,855 gallons per minute to meet max daily demand, and they fall 455 GPM short. The upgrade would raise that to 2,406 GPM.

The project also includes a backup generator. Missoula Current noted a power outage in 2024. It also replaces a water main at least 50 years old that runs west under Highway 93 South near Browman Way and ties into existing pipe on Ridgeway near Coulter Pine Street. O'Connor told the outlet the county has "significant concerns of that failing at some point in time."

According to the county, the capacity limit is on the water side. The existing water system "has reached full capacity, and no new connections are currently allowed." A 2026 study found the wastewater system can take 400 more connections without major capacity upgrades, so the sewer half of the project covers replacements: headworks, influent and RAS pumps, cell liners, and perimeter fencing. When the water work is finished, the county expects room for about 400 new connections, and most new connections would pay impact fees on top.

The full Phase 2 cost is $7.3 million. That includes $1.75 million in federal funding, which can only be used for the water work, and $5.5 million in State Revolving Fund bonds: $3.2 million for water and $2.3 million for sewer. The new district would match the boundaries of Lolo's existing maintenance district, which dates to 1967.

The Calendar a Contract Has to Live With

Lolo sales in the next year will fall somewhere along this schedule. Every date after October 8 is a planned step, not something that has already happened.

1. October 8, 2026. First hearing. Commissioners took up the resolution of intention. In an October 11 roundup, Missoula Commons relayed KPAX's report on the hearing.
2. By October 17. Notices of Hearing are mailed to every owner in the district, and the resolution notice runs in the newspaper on October 17 and 24.
3. October 17 to November 20. Protest period. Protests go to the Missoula County Clerk & Recorder.
4. December 3. Second hearing. Commissioners review the protests, take public comment, and decide whether to create the district.
5. Late 2026 or early 2027. The project goes out to bid.
6. Spring through November or December 2027. Construction, on a tentative schedule.
7. Early 2028. Bonds issued.
8. Fall 2028. Assessments first appear on tax bills. The final year is 2048.

A sale that closes this winter could change hands twice before anyone gets the first bill. Under the form's default, each buyer takes on the same obligation the previous owner was noticed about.

How a Protest Is Counted

The county's project page says the district can't be created if more than 50% of property owners protest. The statute it links to, MCA 7-12-2112, sets the test by cost instead. Proceedings stop for six months if the protest comes from owners of property "to be assessed for more than 50% of the cost of the proposed program or improvements." With an equal per-parcel split, the two tests will usually point the same way, though parcels carrying common-area shares are assessed more than others.

The statute also carves out sanitary sewer work. Commissioners can overrule protests by a unanimous vote if the work is ordered by DEQ or the EPA, or if they make written findings that it protects public health or the environment. According to the county, a valid protest has to be in writing, identify the property, say whether it's against the water improvements, the sewer improvements, or both, and be "signed by all owners of the property." For a parcel that's under contract during the window, the person who signs is still the owner of record.

Once It's Levied

Once levied, the assessment works much like a property tax. Missoula County says RSID charges are taxes and appear in the "special assessments" table on the tax bill. Under MCA 7-12-2163, the treasurer collects it at the same time and in the same way as general taxes.

MCA 7-12-2168 makes the assessment a lien "upon and against the property" once the levying resolution passes. Only payment, with any penalties, costs and interest, extinguishes it. The lien stays with the parcel, not the owner who got the notice.

Prepayment has a rule of its own. The county says owners can pay off the full RSID 8490 assessment early beginning in 2028 and avoid the interest on their parcel. MCA 7-12-2167 allows a non-delinquent assessment to be prepaid "in whole but not in part," including interest through the next bond-interest payment date. The county doesn't post a payoff calculator. The Clerk & Treasurer's Taxes & Vehicles line is (406) 258-4747.

Lolo RSID 8490 Questions

Does the assessment apply if a property isn't on Lolo's public water and sewer? The new district would match the existing Lolo maintenance district's roughly 1,390 properties. Whether a specific parcel falls inside it is answered by the district boundaries in the resolution and the mailed notice.

Can a seller pay it off before closing? Under the statute, prepayment applies after the assessment is levied, and the county says early payoff opens in 2028. Until then there's no levied balance to pay off. How the cost is shared is set by contract language, and the form's default puts it on the buyer.

What happens if the district fails on December 3? If a sufficient protest is found, MCA 7-12-2112 bars further proceedings for six months from the date the protest was received. It doesn't end the underlying compliance problem the county described.

Will buying in Lolo also mean an impact fee? The county says most new connections will pay impact fees once Phase 2 is finished. That applies to new hookups, not to homes already connected.

If you're weighing a Lolo listing or offer while RSID 8490 works through the county, Montana Homes by Jani can go over the county notice and the contract language with you before a buy-sell is signed. A good place to start is an instant valuation of your Lolo home.

This article is general information, not legal, tax or financial advice. Consult a qualified professional about your situation.