Colorado Occupancy Laws: HB 24-1007, Limits, and Penalties

Colorado occupancy laws cap how many people can live in a home based on the dwelling’s square footage, bedroom size, and safety features, not on whether the occupants are related. Since July 1, 2024, state law has barred every local government in Colorado from limiting occupancy based on familial relationship, ending the “unrelated persons” caps many cities enforced for decades.¹ What remains is a mix of local building and fire codes, affordable-housing program rules, and federal fair housing protections.

What HB 24-1007 Changed

Before House Bill 24-1007 took effect, many Colorado cities capped the number of unrelated people who could share a home, often at three or four. A group of five students renting a house together could be in violation even if the home was large enough to house them safely. That is no longer allowed.²

The prohibition reaches every local government in the state: home rule cities, statutory towns, and consolidated city-county governments, regardless of size.¹ Any local ordinance that restricted occupancy based on blood, marriage, or legal adoption is unenforceable.

Occupancy is not unlimited, though. Local governments kept full authority to restrict occupancy based on:

Health and safety standards, including International Building Code requirements, fire code regulations, and Colorado Department of Public Health and Environment wastewater and water-quality standards.
Affordable housing program guidelines, where local, state, federal, or political-subdivision program rules set occupancy conditions as part of the funding.

A city can still say a bedroom is too small for two people or that a septic system will not support eight residents. It cannot say only three unrelated people may live in a house.²

How Many People Can Legally Live in a Colorado Home

With relationship caps gone, square footage is the primary factor. Colorado has no statewide residential building code; each city or county adopts and enforces its own. Most jurisdictions adopt some version of the International Property Maintenance Code, which sets these minimums:

Bedrooms must be at least 70 square feet for the first occupant, and at least 50 square feet per person in any bedroom shared by more than one occupant.
Living rooms must be at least 120 square feet.

These figures come from IPMC Section 404.4.1. Your city may have adopted a different edition or amended the numbers locally, so the municipal code controls.³ For specifics on your property, contact the planning and development department or municipal clerk in your jurisdiction.

Egress Requirements for Bedrooms

Every legal bedroom must have an emergency escape opening, usually an operable window or exterior door meeting minimum size requirements. A basement room converted into a bedroom without a compliant egress window cannot legally be counted as a sleeping area. If a rental advertises a fourth bedroom in a finished basement, verify the egress before assuming that room counts toward the occupancy total. This is one of the most common code violations in Colorado rentals.

Fire Code Limits

Fire codes sit on top of building codes and can further restrict occupancy. Fire marshals evaluate the occupant load of a structure based on how each space is used and the available exits. In residential settings, the concerns are smoke detectors in every sleeping area and common hallway, unobstructed exit paths, and adequate fire separation. A home with enough square footage for six could still be limited to fewer if the exit routes cannot support safe evacuation.

Fair Housing Rules on Occupancy

The federal Fair Housing Act bars landlords from using occupancy limits to discriminate against families with children. Under 42 U.S.C. § 3604, refusing to rent or setting different lease terms because of familial status is illegal.⁴ A landlord who sets a one-person-per-bedroom limit to avoid renting to a parent with children violates the law, even if the policy looks neutral.

The Department of Housing and Urban Development’s Keating Memo gives the working benchmark: two persons per bedroom is generally reasonable under the Fair Housing Act. HUD also cautioned that “the reasonableness of any occupancy policy is rebuttable” and that compliance is not judged “solely on the number of people permitted in each bedroom.”⁵ Bedroom size, unit layout, and the ages of the children all factor in.

A landlord setting a stricter limit than two-per-bedroom without a genuine safety justification faces real exposure. Fair housing complaints can result in compensatory damages, civil penalties, and attorney fees, and the Department of Justice has obtained settlements in the tens of thousands of dollars in cases involving discriminatory occupancy policies.

What Landlords Can Put in a Lease

HB 24-1007 restricts local governments, not private landlords. A property owner can still set occupancy limits in a lease, but those limits must track the unit’s physical characteristics rather than who the occupants are. Setting a four-occupant cap for a two-bedroom apartment based on the two-per-bedroom standard is fine. Capping at “no more than two unrelated people,” or imposing stricter limits on a family with children than on a married couple, is not.

Lease clauses that require every long-term occupant to be listed on the lease or approved by the landlord are standard and legal. The clause just cannot operate as a workaround for discrimination based on family composition, disability, or any other protected class.⁴

Guests Versus Occupants

Colorado has no statute defining exactly when a guest becomes an occupant or tenant. Many leases and property managers use 14 consecutive days as a rough threshold, but that is a contractual standard, not a statutory one. What the lease says about guest stays controls in most situations. Facts like receiving mail at the address, storing belongings there, or contributing to rent tend to weigh toward tenant status regardless of the night count. Landlords who want a firm rule should spell it out in the lease, including how many days per month or per six-month period a guest can stay before approval is required.

Overcrowding and the Warranty of Habitability

Colorado law requires landlords to keep rental property fit for human habitation throughout the tenancy. Under C.R.S. § 38-12-503, a landlord must begin fixing the problem within 24 hours of notice for life-threatening conditions, or within 72 hours for other habitability issues.⁶

Overcrowding can trigger habitability concerns. Too many occupants can overload plumbing, create unsanitary conditions, or compromise exit routes. If that happens, the landlord has both a right and an obligation to address it. A tenant who caused the condition, for example by moving in undisclosed occupants, cannot use the warranty of habitability as a defense against lease enforcement.⁶

Penalties for Occupancy Violations

Because Colorado leaves building code enforcement to local governments, penalties vary by municipality. A city may impose daily fines for an ongoing violation, order the property owner to reduce occupancy within a set timeframe, or in serious cases declare a unit unfit for habitation. Fines run from modest per-day amounts to $1,000 or more depending on the jurisdiction and the severity of the violation.

For landlords, the bigger financial risk usually comes from fair housing complaints rather than municipal fines. A discriminatory occupancy policy can lead to federal enforcement action, with settlements that routinely include compensatory damages, civil penalties paid to the government, and the complainant’s attorney fees. Setting occupancy limits based on square footage and safety, and applying them the same way to every applicant, is the cleanest way to avoid exposure on either front.

1
Division of Local Government. Residential Occupancy Limits
2
Colorado General Assembly. HB24-1007 Prohibit Residential Occupancy Limits
3
International Code Council. 2021 International Property Maintenance Code – Chapter 4 Light, Ventilation and Occupancy Limitations
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Office of the Law Revision Counsel. 42 USC 3604 – Discrimination in the Sale or Rental of Housing
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U.S. Department of Housing and Urban Development. Keating Memo on Occupancy Standards
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Justia Law. Colorado Revised Statutes Title 38 Section 38-12-503