In-depth analysis

Should you buy an STR in Big Sky in 2026?

Yes for capital-rich operators with a long horizon. Big Sky’s revenue story is strong — ADR around $289, 56% occupancy, RevPAR around $162. The terrain (Big Sky Resort’s combined Lone Mountain / Moonlight Basin footprint is among the largest in North America), proximity to Yellowstone (50 miles to West Yellowstone), and Bozeman airport access produce real four-season demand.

The buy-in has moved sharply, though — what was a $400K-$600K market in 2018 is now firmly in the $1M+ range for entry-level rentable inventory.

Regulation: where the city stands

Big Sky is unincorporated — there is no town government. Regulation runs through three layers:

Gallatin County (where most of Big Sky sits) — STR-permissive with registration; the 2024 county-wide review tightened administrative requirements but did not impose density caps.
Madison County (where parts of Big Sky south of the Gallatin / Madison county line sit) — separate rules, similarly permissive.
Big Sky Resort Area District (BSRAD) — special-purpose taxing district that levies a 4% resort tax on lodging. The revenue funds infrastructure, water, and community programs.
HOA restrictions at the resort base condo properties and gated communities (Yellowstone Club, Spanish Peaks, Moonlight Basin) are extensive — many require participation in a building rental program.

See Big Sky Resort Area District for current resort-tax rules and the Gallatin County planning department for STR registration.

The market by the numbers

Metric	Big Sky	Bozeman	Whitefish
ADR	$289	$211	$171
Occupancy	56%	57%	60%
RevPAR	~$162	~$120	~$103

Big Sky leads the Montana ski-market peer set on RevPAR. Acquisition cost reflects that.

Submarkets that matter

Mountain Village (resort base) — purpose-built nightly-rental condos, mandatory or recommended rental-program participation in some buildings, top-of-market acquisition.
Meadow Village — golf community + commercial center, more single-family inventory, lower acquisition than the resort base.
Spanish Peaks / Moonlight Basin — gated communities, HOA-controlled, premium acquisition, often rental-restricted by association.
Gallatin Canyon (along US-191) — single-family pockets, lower acquisition, longer commute to the lifts.

The 3 mistakes buyers make here

Skipping the HOA / rental-program contract review. Many resort-base buildings have mandatory program participation with fixed splits.
Underwriting Yellowstone summer at peak ski-week ADR. They’re different markets with different rate structures.
Forgetting the BSRAD 4% resort tax. It stacks on top of state and county lodging tax.

What to do next

Verify rental-program terms + comps in /comp-analyzer/.
Market score: /market-score/.
Financing: /dscr-loan-calculator/.
Year-one cash: /year-1-cash-needs/.

Not investment advice. Big Sky is unincorporated — multiple jurisdictions apply. Verify the parcel’s specific county before offer.