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

Heavy Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

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

Key Facts

License required
Before operating any short-term rental
Eligible applicants
Natural person, qualifying trust, or 501(c) nonprofit
Ownership threshold
At least 50% fee-simple interest required
New applications
Closed to new STR licenses since February 1, 2019
Advertising rule
Must display the assigned license number
One license per person
City manager issues only one STR license per applicant

Summary

Short-term rentals are illegal in Boulder without a city-issued license. Section 10-3-19(a) bars anyone from operating a short-term rental unless the city manager has issued a valid short-term rental license, and only a natural person, a trust with a natural-person beneficiary, or a qualifying nonprofit may hold one.

(a)Short-term rentals are prohibited unless the city manager has issued a valid short-term rental license for the property.(b)The city manager shall only issue a rental license for short-term rental to:(1)A natural person, whose name appears on the deed to the property;(2)A trust, if the beneficiary of the trust is a natural person; or(3)A not-for-profit corporation licensed pursuant to Section 501(c) of the Internal Revenue Code

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Municipal Code: Supplement 167 Update 3).

Full Breakdown

C. " Subsection (b) narrows who can even apply: a natural person named on the property deed, a trust whose beneficiary is a natural person, or a nonprofit corporation licensed under Internal Revenue Code Section 501(c), and the city manager has discretion to reject a nonprofit's application if it conflicts with the chapter's goal of preserving long-term rental housing and blocking investor-owned short-term rentals. The application itself, under subsection (c), must include a Colorado driver's license or ID card showing the unit as the applicant's (or beneficiary's) address, a sworn statement that the unit is the applicant's principal residence, proof of 501(c) status for a nonprofit applicant, a certification that the unit has operational smoke detectors, carbon monoxide detectors, and other required life-safety equipment, and the names and phone numbers of two contacts able to reach the property within 60 minutes.

A licensed applicant must hold at least a 50 percent fee-simple ownership interest in the property under subsection (d) or (e), and the city manager cannot license a unit owned in fee by a non-tax-exempt entity, cannot license more than one short-term rental to the same applicant, and cannot issue both a short-term rental license and a standard rental license for the same unit under subsections (f), (m), and (n). New applications for most short-term rental licenses stopped altogether after February 1, 2019, under subsection (o)(7)(A); only renewals of unexpired licenses, and a narrower festival lodging license under subsection (q), remain available today.

Violations & Fines

Operating or advertising a short-term rental without a current license violates Section 10-3-19(a) and (l), and, like other Chapter 3 violations, draws the escalating $150/$300/$1,000 civil penalty schedule in Section 10-3-16(a)(1) plus possible license revocation. A licensee who no longer meets the ownership or principal-residence conditions in subsection (c) faces mandatory revocation under Section 10-3-16(a)(3), and unlicensed operation can also trigger the criminal fine of $500 to $2,000 per violation, or up to 90 days in jail, under Section 10-3-17.

Frequently Asked Questions

Can I run a short-term rental in Boulder without a license?
No. Section 10-3-19(a) prohibits short-term rentals unless the city manager has issued a valid short-term rental license for that specific property, and Section 10-3-19(l) requires every advertisement to display the assigned license number once one is issued.
Who is allowed to hold a Boulder short-term rental license?
Only a natural person named on the property deed, a trust whose beneficiary is a natural person, or a 501(c) nonprofit corporation under Section 10-3-19(b), and the applicant (or trust beneficiary) must hold at least a 50 percent fee-simple ownership interest under subsections (d) and (e).
Is Boulder still accepting new short-term rental applications?
No, not for the standard license. Section 10-3-19(o)(7)(A) closed new applications after February 1, 2019; the city manager now only renews unexpired licenses, and a separate, narrower festival lodging license under subsection (q) is the one new option still available.
What has to be in a short-term rental application?
A Colorado ID showing the unit as the applicant's address, a sworn statement that it is the applicant's principal residence, certification of working smoke and carbon monoxide detectors, and the names and phone numbers of two contacts able to reach the property within 60 minutes, all required under Section 10-3-19(c).

Sources & Official References

Other rules in Boulder

All Boulder rules

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

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Short-Term Rental Permits in Nearby Cities

How other cities in Boulder County handle short-term rental permits.

Longmont, CO
Some Restrictions