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Rancho Cucamonga, CA Short-Term Rentals: Occupancy Limits (2026)

Light Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified April 2026

Key Facts

Code
RCMC Chapter 8.34
Standard formula
2 per bedroom plus 2
Permit posting
Required near entrance
Bedroom standards
Per California Building Code
Infants
Typically not counted

Summary

Rancho Cucamonga STR occupancy is capped based on bedrooms with a typical formula of 2 persons per bedroom plus 2 additional. The STR permit sets the maximum overnight occupancy.

17920.3. Any building or portion thereof, regardless of zoning designation or approved uses of the building, including any dwelling unit, guestroom or suite of rooms, or the premises on which the same is located, in which there exists any of the following listed conditions to an extent that endangers the life, limb, health, property, safety, or welfare of the occupants of the building, nearby residents, or the public shall be deemed and hereby is declared to be a substandard building: (a) Inadequate sanitation shall include, but not be limited to, the following: (1) Lack of, or improper water closet, lavatory, or bathtub or shower in a dwelling unit. (2) Lack of, or improper water closets, lavatories, and bathtubs or showers per number of guests in a hotel. (3) Lack of, or improper kitchen

Source: RCMC Chapter 8.34View official code

Full Breakdown

RCMC Chapter 8.34 sets maximum occupancy for STRs based on the number of legal bedrooms in the dwelling. The standard formula limits overnight occupancy to two persons per bedroom plus two additional persons, consistent with California HCD guidance. Daytime guest counts may be limited separately to prevent the property from functioning as a de facto event venue. Bedrooms must meet California Building Code minimum size, ceiling height, natural light, ventilation, and egress standards to be counted. Convertible spaces like dens, lofts, and sunrooms without code-compliant egress windows typically cannot be counted as bedrooms. The approved maximum occupancy is listed on the STR permit and must be posted inside the unit near the primary entrance. Exceeding the posted occupancy is a violation of the permit and can trigger administrative citations and, after repeat violations, permit revocation. Infants under 2 are typically not counted toward occupancy.

Frequently Asked Questions

Can I squeeze extra guests onto air mattresses?
No. Overnight occupancy is capped at the number set on your STR permit regardless of sleeping arrangements, and exceeding it is a permit violation.
Does the occupancy limit apply to daytime visitors?
The primary limit is overnight, but RCMC 8.34 also discourages daytime gatherings that turn the unit into an event space. Check your permit conditions.

Sources & Official References

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