Summit County Short-Term Rental Rules Outside the Towns: Keystone, Copper, and Unincorporated Areas

What are the short-term rental rules if you buy in Keystone or unincorporated Summit County?

Summit County short-term rental rules change at the zone line. Keystone and Copper Mountain have no license cap, but in much of unincorporated Summit County the license you'd need has a waitlist.

Here's a number that surprises a lot of second-home buyers. As of January 2026, Summit County's own count showed 137 Type II short-term rental licenses in the Snake River basin against a cap of 130. The Ten Mile basin showed 24 against a cap of 20. Both basins were over their caps, and the county page says no Type II applications are available at this time.

Now picture the listing you're looking at. It has years of nightly rental history, a calendar full of past bookings, and a seller's income summary to back it up. None of that history comes with the property. Whether you can rent it the week after closing depends on which side of a jurisdiction line the front door sits on.

This post maps which rules apply where outside the incorporated towns, what a new owner has to do in each area, and what to check before you write an offer.

Three Sets of Rules Outside the Towns

Breckenridge, Frisco, Silverthorne, and Dillon run their own short-term rental programs. Outside those towns, a Summit County buyer runs into three different setups:

The county's rules come from Ordinance 20-C. A short-term rental is any stay of less than 30 consecutive days. You can read the full program on the Summit County short-term rental page.

Keystone: Its Own Town and Its Own License

Keystone incorporated in 2024, and the Town became the sole licensing authority for short-term rentals there on October 1, 2024. County rules stopped applying inside town limits on September 30, 2024.

According to the Town of Keystone short-term rental page, the license costs $285 a year, and "there are no caps on the number of Short-Term Rental licenses issued by the Town at this time." The 2026 to 2027 renewal window ran September 1 through 30, 2026.

The part buyers miss is the transfer rule. Keystone licenses are non-transferable. A new owner has to apply for and receive a new license before listing the property as a short-term rental, and the license number has to appear in every ad.

Keystone also tightened its operating rules with Ordinance 2025-O-14, adopted August 12, 2025:

• Occupancy is two people per bedroom plus four, or one person per 200 square feet, whichever is greater.
• No more than five vehicles parked outdoors, with parking passes required.
• Complaints need a response within one hour.

The Town's 2% lodging tax took effect January 1, 2025. Town rules also don't override your HOA. If the condo declarations limit rentals, the HOA's limit still applies.

Copper Mountain and the County Resort Zone

Copper Mountain sits in unincorporated Summit County's Resort Zone. The county's Resort License costs $295 a year, carries no restriction on the number of nights rented, and has no current limit on the number of licenses issued.

A buyer here doesn't inherit the seller's license either. Per the county FAQ, you email the short-term rental office with a letter from the current owner granting permission to apply, then submit a normal application. Plan for that before your first booking. Occupancy of 20 or more people in the Resort Zone requires a conditional use permit.

The Neighborhood Zone: Where Buyers Get Surprised

Everything in unincorporated Summit County outside the Resort Zone falls into the Neighborhood Overlay Zone. This is where the tighter rules live.

The 35-Booking Limit

A Neighborhood Zone license allows 35 bookings per rental year, counted October 1 through September 30. The limit counts booking parties, so a seven-night stay and a two-night stay each use one booking. Occupancy is two guests per bedroom plus two guests per booking party.

A federal lawsuit challenged these rules, and a judge dismissed it on June 25, 2024, upholding the booking limit. A related case was filed in state court later that year. Check its status before you rely on today's rules for a long-term plan.

Type I and Type II Licenses

Type I licenses don't count toward the caps. They're for qualified occupants, which news coverage of the ordinance describes as full-time county residents who work more than 30 hours a week in the county, plus some retirees. Most second-home buyers won't qualify.

Type II licenses are the ones a typical second-home owner would need, and they're capped by basin. The county's January 2026 count from its short-term rental regulations page:

Lower Blue, Upper Blue, and Snake River all have waitlists. The Snake River waitlist opened January 20, 2026, with a $75 non-refundable fee. The county won't accept an application on a property until the sale has closed, and joining the waitlist doesn't guarantee a license.

Do County Licenses Transfer?

Only in limited situations. Section 2.8 of Ordinance 20-C lists exceptions such as transfers between family members, changes from marriage or divorce, moves into an LLC or trust, and inheritance. A sale to an unrelated buyer isn't on that list. If you buy a Neighborhood Zone home with a license, plan as if you'll start over.

What to Check Before You Write an Offer

Run through this list while you still have room to walk away under your contract deadlines:

1. Confirm the jurisdiction. Town of Keystone, county Resort Zone, or Neighborhood Zone, and which basin. An address alone won't tell you.
2. Read the HOA documents. Declarations and rules can ban or limit rentals regardless of what the Town or county allows.
3. Check the license path. In Keystone or the Resort Zone, you'll apply fresh with no cap. In the Neighborhood Zone, find out whether your basin has a waitlist.
4. Rebuild the rental math. Use your own occupancy limit and, in the Neighborhood Zone, 35 bookings. The seller's history may reflect rules that no longer apply to a new owner.
5. Account for lodging taxes. Keystone collects its 2% town lodging tax. Unincorporated Summit County has had a 2% short-term rental lodging tax since January 1, 2023, on top of state taxes.

Jamie Bridges, a REALTOR® with Keller Williams Realty DTC, works with second-home buyers across Summit County, from Keystone and Copper Mountain to Breckenridge and the Lower Blue. His Resort and Second-Home Property Specialist (RSPS) designation centers on resort markets like this one, and his first question on any Summit County rental property is the same: which rulebook applies to this exact address?

Frequently Asked Questions

Can I take over the seller's short-term rental license when I buy in Keystone? No. Town of Keystone licenses are non-transferable, so you apply for and receive a new license before you list the property. The Town currently has no cap on licenses.

How many bookings are allowed in unincorporated Summit County? In the Neighborhood Overlay Zone, a license allows 35 bookings per rental year, counted October 1 through September 30. The Resort Zone, which includes Copper Mountain, has no restriction on the number of nights rented.

Is Copper Mountain subject to Summit County's short-term rental cap? No. Copper Mountain is in the county's Resort Zone, where the county currently has no limit on the number of licenses. You still need your own license after you buy.

If a condo in Keystone, a place at Copper Mountain, or a home anywhere in unincorporated Summit County is on your list, start with the rules for that address. Jamie Bridges is a REALTOR® with Keller Williams Realty DTC serving the Denver Metro Area and Summit County, Colorado. Call or text Jamie at 720-397-7555 to talk through a property before you write an offer.

Sources: Summit County short-term rental program pages, FAQ, license applications, and regulations (cap counts dated January 2026; fee schedule March 2026); Summit County waitlist notice of January 12, 2026; Town of Keystone short-term rental pages and Ordinance 2025-O-14; Colorado Sun, July 22, 2024 (federal case). Rules change; verify with the Town or county before you buy. General information only. This isn't legal advice.