A buyer touring a modest three-bedroom cottage a mile or two from the Territory 1889 gates this summer will probably never set foot inside the private golf and lake club Discovery Land Company is building on Lakeside's west shore. But the two properties share something no listing sheet mentions: the same wastewater treatment system, the same rate schedule, and, as of this month, the same court docket.

That system is in the middle of the largest rebuild in its history. The bill has already grown well past what anyone budgeted for, and the argument over who should cover the difference, longtime Lakeside ratepayers or the developer bringing in hundreds of new connections, is now working its way through Flathead County District Court. If you're comparing Lakeside to Somers or Bigfork on median price alone, you're skipping the number that actually shows up every month: what the sewer district charges, and why that figure keeps moving.

A System Built for a Much Smaller Town

The Lakeside County Water and Sewer District serves roughly 657 individual wastewater connections, a small base carrying a large capital project. The treatment method in place, an aerated lagoon system, dates to 1987. District leadership has said for years that the lagoons are approaching capacity and that Montana Department of Environmental Quality standards have tightened enough to rule out simply expanding the old design.

The rebuild isn't just about Lakeside's own growth. Flathead County asked the district to take on septage from tanks countywide, and the district's own general manager, Rodney Olson, has said staff began evaluating expansion back in 2020, before Discovery Land Company or anyone else had proposed a project on the west shore. That timeline matters, because it's the crux of a public argument now playing out in local newspapers over whether new development is driving the cost, or simply arriving at the same time as a repair that was already coming.

The Bill Nobody Priced In

The numbers have moved twice, and both times in the same direction.

Add the two phases together and the district's own combined investment sits close to $59 million. Part of the Phase 1 overrun came from a new requirement for seismic ground support on a storage pond, which pushed that single component from an estimated $4 million to $12 million. Board president Marc Liechti told residents at an August 2025 meeting that the district was "surprised with the cost increases" and acknowledged, in his words, that "the mistake that we may have made over the years is that we waited too long to raise the rates."

Rates went up that fall. Whether they go up again depends on how Phase 2 plays out, and Phase 2 is currently in litigation.

"Growth Should Pay for Growth" Meets a 359-Home Resort

The most useful sentence in this whole story didn't come from a courtroom filing. It came from a guest opinion in the Daily Inter Lake, written by someone who spent more than two decades on the district's board and as its general manager. Describing his own tenure, he wrote that "one of my guiding principles was always that growth should pay for growth rather than placing that financial burden on customers who had already invested in the district's facilities."

That's not a hypothetical standard. It's a specific claim about how the district used to operate, made in public, at the exact moment a 359-residence golf resort is preparing to connect to the same system that just raised everyone else's rates. Current district leadership and a Lakeside civil engineer, Jeff Larsen, have pushed back hard on the idea that Discovery's project is driving the expansion, pointing to the 2020 planning start date as proof the upgrade was coming regardless. Reasonable people, reading the same set of facts, have landed in different places. What's not in dispute is that Territory 1889's septage will eventually flow through a facility that existing ratepayers are financing today, ahead of the resort's own hookups coming online.

The Courtroom Now Setting the Timeline

Buyers on the west shore right now are shopping into an active legal calendar, not just a listing calendar.

On Aug. 10, 2026, a Flathead County District Court judge sided with the state, finding that Phase 1's environmental review met the requirements of Montana's Water Quality Act and Montana Environmental Policy Act. The watchdog group Citizens for a Better Flathead and the Confederated Salish and Kootenai Tribes, who brought that suit, are deciding whether to appeal to the Montana Supreme Court. Four days later, on Aug. 14, the same groups filed a new lawsuit targeting Phase 2, this time joined by the Polson-based Flathead Lakers. That suit asks the court to pause construction while it's litigated and argues the state's phased review failed to account for the project's full cumulative impact. Citizens for a Better Flathead co-executive director Mayre Flowers put the group's position plainly in a statement, saying the science shows "a grave risk" to placing a large discharge facility over what she called a vulnerable aquifer.

This isn't the only piece of Discovery's project currently in front of a judge. A separate case over the golf course's water rights, a request to divert up to 249 acre-feet, or roughly 81 million gallons, of groundwater annually, was paused by a state judge in June 2026 pending further review, a delay attorneys involved described as buying "about a year of breathing room." And a 159-foot dock and marina variance approved by county commissioners in February 2026, over resident objection, has already drawn its own injunction fight. None of this means the resort won't get built. It means the infrastructure underneath it, the sewer plant, the water rights, the dock, is being decided in layers, and each layer can move the calendar for anyone whose closing depends on service, permits, or simple certainty about what the neighborhood looks like in three years.

What to Check Before You Write an Offer on the West Shore

If you're touring homes in Lakeside this fall, a few questions belong on your due diligence list alongside the usual septic and well inspections:

• Confirm whether the specific parcel is inside the Lakeside County Water and Sewer District boundary, and ask for the district's two most recent rate change notices.
• Ask your agent or the seller directly whether the property's utility account has already reflected the fall 2025 increase, and budget for the possibility of another adjustment tied to Phase 2 costs.
• If the home is anywhere near the Territory 1889 corridor, ask whether any represented amenities, marina access, road improvements, or club membership options, depend on permits still under litigation.
• Review recent district board meeting minutes, which are public record, for the latest cost and timeline updates rather than relying on marketing materials from any single development.

None of this is a reason to avoid Lakeside. Waterfront and near-waterfront supply on Flathead Lake remains tight, and public data on lake sales in 2025 put the median waterfront price near $1.8 million, with many 2026 listings priced between $2 million and $3 million. Lakeside itself has grown steadily and now offers more clustered subdivision inventory than its quieter neighbor Somers. But the sewer math is now part of the value equation on the west shore in a way it wasn't five years ago, and it's worth pricing in before it shows up on your first utility bill.

A Couple of Questions Worth Asking Directly

Does this affect homes that aren't near the golf club? Yes. Nearly all in-town sewer customers in Lakeside share the same district and the same rate structure, regardless of how close a property sits to Territory 1889.

Will rates rise again? No one can say for certain. The district raised rates once in 2025 to cover Phase 1, and Phase 2's cost more than doubled between its draft and final estimates. Given that pattern, buyers should ask the district directly about its current financial projections rather than assume the last increase was the only one.

Lakeside's story right now isn't really about one golf resort. It's about a small utility district absorbing a large, contested rebuild, and about how that cost gets divided between the people who already live there and the development arriving next door. If you're weighing a purchase on the west shore and want a clear read on how a specific property's utility history, connection status, and price actually line up, Liz McGavin can walk you through it property by property. Reach out for a free consultation before you tour, so the sewer math is settled before the offer is.