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Boulder County, CO Short-Term Rentals: Short-Term Rental Permits (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified July 2026

Short-term rental permit rules in Boulder County, CO, also called Airbnb permits, vacation rental licenses, or STR registration, list the application steps, fees, and operating requirements for hosting.

Key Facts

Where to apply
Community Planning & Permitting, online
Neighbor notice
Required to adjacent neighbors
Insurance proof
Required with application
Application abandoned
After 180 days incomplete
Inspection
Building inspection before issuance

Summary

Apply online through Boulder County Community Planning & Permitting. The application must include proof of insurance, ownership, primary residence (if applicable), a parking plan, floor plan, a sales tax license, and notice to adjacent neighbors.

City-specific rules exist: Longmont, and Boulder have their own short-term rental permits rules that differ from Boulder County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

Provide Copy of License to Neighbors. The Licensee must provide a copy of the License to immediately adjacent neighbors by U.S. Mail, first class postage or email. Further, the Licensee must post a copy of the License in a prominent location within the Dwelling Unit for guests to see.

Full Breakdown

Section 4 lists the application requirements: an online application with all owner and Local Manager signatures; proof of insurance; proof of primary residence (Colorado ID plus a Sworn Statement); proof of ownership via current deed; a parking plan; a floor plan showing smoke, CO, and fire-extinguisher locations; proof property taxes are paid; and a sales tax license. Applicants must mail or email a copy of the license to immediately adjacent neighbors and post it inside the unit. The county may refer applications to Public Health, Building Safety, and the Wildfire Mitigation Team. Failure to supply requested information within 180 days withdraws the application.

Violations & Fines

Incomplete applications are withdrawn after 180 days. Operating before the license is issued is an unlicensed-operation violation subject to escalating fines and possible revocation.

Frequently Asked Questions

Do I have to tell my neighbors?
Yes. You must provide a copy of the license to immediately adjacent neighbors by first-class mail or email, and post the license prominently inside the dwelling for guests.
How long is the license valid?
Two years. Renewal applications must be submitted at least 45 days before expiration, and the license must have no unresolved ordinance violations.

Sources & Official References

Other rules in Boulder County

All Boulder County rules

How Boulder County compares: Most Airbnb-Friendly Cities in America·Compare Boulder County to another location·View the Colorado short-term rentals overview

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Short-Term Rental Permits in Cities Across Boulder County