Ketchum spent four years building one of the more detailed short-term rental frameworks in Idaho, and as of this July, most of it stopped being enforceable. If you're weighing a condo purchase in town with an eye toward nightly rental income, that sounds like good news. It mostly isn't the point. The rule that decides whether you can actually run a short-term rental in a given building was never really the city's to give or take away in the first place, and the last few months have made that plainer than ever.
What the state took off the table
Idaho's House Bill 583, signed by Governor Brad Little on March 16, 2026, is one of the broadest state-level preemptions of local short-term rental regulation in the country. It took effect July 1 under an emergency clause, and it bars cities and counties from requiring a permit, license, registration, or inspection specifically for short-term rentals, and from imposing owner-occupancy rules, density caps, or extra insurance and parking requirements that don't apply to every other residential property. The bill passed the Idaho House 54 to 16 and the Senate 23 to 12.
Ketchum had built its rules around exactly the tools HB 583 now forbids. Ordinance 1230, adopted in 2022, required an annual $504 permit, a fire safety plan reviewed by the Ketchum Fire District, and city inspections. The city collected roughly $100,000 a year in permit and renewal fees, according to reporting in the Idaho Mountain Express. By late June, the City Council had combined its final two ordinance readings into a single vote to bring local code into line with the new state law. Whatever happened at that specific meeting, the date that actually mattered wasn't a council vote at all. Once July 1 arrived, any city rule stricter than what applies to an ordinary long-term rental stopped being enforceable, ordinance or no ordinance.
In that report, the Idaho Mountain Express quoted City Administrator Jade Riley told the council the old regulations would become optional, something the city could still recommend but no longer require. Councilman Matthew McGraw was blunter about what that meant in practice, describing the new landscape as a "choose your own adventure" regulatory environment and noting that homeowners associations, not the city, now hold the tools to actually restrict rentals within a neighborhood. He said the city could even help HOAs rewrite their governing documents if owners wanted stricter rules than the state now allows City Hall to impose.
Some pieces of Ketchum's old ordinance likely survive, because they aren't STR-specific. Smoke alarms, carbon monoxide detectors, fire extinguishers, and escape ladders are still required, since HB 583 preserves safety standards applied equally to all residential properties. The zoning restrictions tied to specific areas of town, like the ban on rentals in Light Industrial zones and the seasonal limits in the Avalanche Zone District between November 15 and April 15, likely hold too, since those rules govern the zone rather than singling out short-term use. What almost certainly doesn't survive is the ordinance's two-night minimum stay and its one-rental-per-parcel limit, since HB 583 specifically bars local governments from restricting the number of rental days or capping unit density.
The part the state law can't touch
None of that changes what actually governs a specific unit inside a homeowners association, and in Ketchum, most short-term rental properties sit inside one. HB 583 preempts city and county ordinances. It does not preempt private contracts, and a condominium declaration or a set of CC&Rs is a private contract between the association and its owners. If a building's governing documents already prohibit or limit nightly rentals, that restriction stands regardless of what changed at City Hall this summer.
That distinction is easy to state and easy to miss when you're comparing listings. A unit in a building with no rental restriction and a unit in a building whose declaration bans stays under thirty days can look identical on a listing sheet. The difference only shows up in the recorded declaration, which most buyers don't request until well into a transaction, if they request it at all.
There's a timing wrinkle underneath that too. Idaho law generally limits a homeowners association's ability to enforce a brand-new rental restriction.
How the other towns in the valley never built what Ketchum is now dismantling
Ketchum's rollback looks different next to how its neighbors handled the same pressure. Sun Valley never adopted a dedicated short-term rental ordinance at all. The city's clerk has said the Council discussed the issue back in 2022 and settled on sending health and safety suggestions to homeowners rather than building a permit system, so there's little for HB 583 to unwind there.
Hailey took a narrower route. It has no STR-specific ordinance, but its accessory dwelling unit rules limit short-term rental use to only one of the two units allowed on a property. The city's attorney concluded that restriction doesn't violate the state's ban on prohibiting short-term rentals outright, since it's a zoning limit on ADUs rather than a permit system targeting STRs specifically, which suggests it may hold up better against HB 583 than Ketchum's old permit structure did.
Bellevue requires anyone operating a short-term rental to carry a general business license, the same license required of any business operating in city limits. Because that requirement applies broadly rather than singling out STRs, it likely survives the new law intact as well.
The practical read: of the roughly 840 short-term rentals estimated across the Wood River Valley as of 2024, about 81 percent sit in Ketchum and Sun Valley combined. That's the bulk of the valley's STR inventory now operating with essentially no city-level permitting layer left standing in either place, which means whatever governance exists over that inventory is almost entirely private, sitting in HOA documents rather than municipal code.
Before you write an offer on a Ketchum condo
- Request the recorded Declaration of Covenants, Conditions, and Restrictions, along with every amendment, not just the HOA's welcome packet or a summary sheet.
- Check the date any rental restriction was adopted against your anticipated closing date, since that timing can determine whether a restriction applies to you at all.
- Ask the association directly whether a rental restriction is currently being drafted or discussed, since several boards are actively considering this now that the city no longer will.
- Confirm the parcel's zoning designation, since Light Industrial and Avalanche Zone restrictions are unrelated to HB 583 and may still limit rental use.
- Treat "no city permit required" as necessary information, not sufficient proof that a unit can legally operate as a short-term rental.
A few questions worth settling early
Does this mean my existing Ketchum short-term rental permit is worthless? The city's permit program is being wound down, but a permit you held and renewed under the old rules still documents that your unit met the last set of city safety standards, which can be useful if a buyer or an HOA board asks. Hold onto the paperwork.
Can my condo association ban short-term rentals after I've already bought? Not retroactively against you in most cases if you never agreed to the restriction in writing at purchase, though the answer depends on your building's specific declaration and its amendment history. This is a question for a real estate attorney or title company reviewing your actual documents, not a general rule that applies the same way in every building.
Do I still need to register with anyone? You no longer need a city permit, but if you take direct bookings outside a platform like Airbnb or Vrbo, you're still responsible for registering with the Idaho State Tax Commission and remitting sales and travel and convention taxes yourself. Platforms that handle the booking generally collect and remit those taxes on your behalf.
If you're comparing a specific building's rental potential against what you've read about Idaho's new law, the declaration is where that comparison actually gets settled. Erika Rixon can help you pull the right documents and read them before you're past your inspection window, not after.
This article is general information, not legal, tax or financial advice. Consult a qualified professional about your situation.