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Jefferson County, CO Short-Term Rentals: Occupancy Limits (2026)

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

Key Facts

Per bedroom
Two occupants
Absolute maximum
Ten occupants
ADU STR cap
Three occupants
Septic limit
May lower cap further
Binding figure
Occupancy on the license

Summary

Occupancy is limited to two people per bedroom, or fewer if the on-site wastewater system is more restrictive. No STR may exceed ten occupants regardless of bedroom count. An STR in an Accessory Dwelling Unit is capped at three occupants.

These county ordinances apply to unincorporated areas of Jefferson County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

The number of occupants is limited to two (2) per bedroom or as limited by the on-site wastewater treatment system, whichever is more restrictive. No STR shall exceed ten (10) occupants, no matter the number of bedrooms or wastewater treatment system allowance.

Source: Jefferson County Section 46 - Short-Term Rentals (adopted 12-16-25)View official code

Full Breakdown

Section 46 sets a hard occupancy formula: two occupants per bedroom, or the on-site wastewater treatment system (OWTS) limit if lower, with an absolute ceiling of ten occupants. STRs within an Accessory Dwelling Unit are limited to three occupants or the ADU regulations, whichever applies. The occupancy printed on the approved license is the binding maximum, regardless of what was requested. Every advertisement must clearly list the approved occupancy limit alongside the license number, and no sleeping areas are permitted outside defined bedrooms on the floor plan.

Violations & Fines

Exceeding the licensed occupancy is a code violation subject to the $500/$1,000 graduated fine schedule and possible license revocation by the Planning & Zoning Director.

Frequently Asked Questions

Can a large home host more than ten guests?
No. No STR may exceed ten occupants no matter how many bedrooms it has or what the wastewater system would allow. The two-per-bedroom rule is also a ceiling.
What is the limit for an ADU rental?
If the STR is in an Accessory Dwelling Unit, occupancy is limited to three, or as set by the ADU regulations, and the main house must be the owner's primary residence.

Sources & Official References

Other rules in Jefferson County

All Jefferson County rules

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