How to Rent to College Students in Colorado: Laws, Licensing, and Local Rules

Renting to college students in Colorado no longer means counting unrelated roommates. House Bill 24-1007, the HOME Act, took effect July 1, 2024 and bars every Colorado local government from limiting occupancy based on familial relationship — which is why Boulder, long the strictest college town in the state, administratively stopped enforcing its unrelated-occupant cap and now regulates occupancy purely by bedroom square footage under the International Property Maintenance Code. What did not go away is licensing. Boulder still requires a long-term rental license plus a one-time SmartRegs energy inspection, and Fort Collins has required annual registration since January 1, 2025.

Key Takeaways

• Boulder's unrelated-occupant limit is not being enforced. HB24-1007 killed relationship-based occupancy caps statewide on July 1, 2024.
• What replaced it is arithmetic: 70 square feet for the first occupant of a bedroom, 50 more for each additional occupant sharing it.
• Licensing survived the bill entirely, and in Boulder it is the harder hurdle — no rental license without passing SmartRegs.
• Fort Collins registration is $37 per property plus $10 per additional unit, with $100-per-unit fines for skipping it.
• Deposits changed on January 1, 2026. You can no longer withhold for normal wear and tear or for damage that predated the tenancy.
• Carpet has a ten-year clock. If it has not been replaced in the last decade, you cannot call it irreparably damaged.

The HOME Act Ended Relationship-Based Occupancy Caps in Colorado on July 1, 2024

Governor Polis signed House Bill 24-1007 on April 15, 2024, and it took effect that July. The rule is one sentence long in practice: a local government may not limit the number of people who may live together in a single dwelling based on familial relationship. No carve-out for college towns, no grandfathering of existing ordinances.

Cities kept one lane. The bill expressly allows occupancy limits grounded in demonstrated health and safety standards — international building code, fire code, or Colorado Department of Public Health and Environment water and wastewater standards — or in affordable housing program guidelines. That is the hook every affected city has used since.

If you have owned a Boulder rental for a while, this is a genuine reversal rather than a technicality. The old land use code capped unrelated occupants per unit, and enforcement was real. The city's own occupancy limits page now states that code enforcement will administratively cease enforcing those regulations while ordinance revisions go to council.

What Actually Governs Occupancy in Boulder Now Is the IPMC Bedroom Math

Boulder replaced a relationship test with a floor-area test, and the numbers are worth memorizing because they decide how many beds you can advertise.

Under IPMC section 404.4.1, a bedroom must be at least 70 square feet, and shared bedrooms need 50 square feet per occupant. So a 70-square-foot room holds one person. A 120-square-foot room holds two. Table 404.5 of the same code sets minimum living and dining room areas that scale with the total number of occupants in the unit, which is the part owners forget — a house can pass on bedrooms and still fail on common area.

Measure before you list. A four-bedroom bungalow near the Hill where two of the bedrooms are converted 60-square-foot sunrooms is a two-bedroom under this code, no matter what the listing said when you bought it.

Boulder and Fort Collins Both Require a License, and Boulder Ties Yours to an Energy Inspection

This is where Colorado gets expensive, and it is the part the occupancy news buried.

Boulder requires a long-term rental license for any rental of 30 days or more. Before the city approves it, the property must pass a SmartRegs inspection — a technical energy-efficiency analysis that applies to most rental homes built before July 1, 2001. It is a one-time requirement rather than a recurring one, but it is a gate: no SmartRegs pass, no license, no legal rental. The licensing fee runs about $70 per building, and multi-unit properties submit a lighting certification for a four-year term.

Fort Collins went the registration route. Since January 1, 2025, most long-term rentals must register annually — $37 per property plus $10 for each additional rental unit on the same parcel, with owner-occupied units and mobile home parks exempt. Condos register separately because each sits on its own parcel, so three condos in one building is $111, not $57. There is no inspection, but you self-certify each year that the property meets minimum housing standards, and tenants can look your property up in a public registry before they sign.

Neither requirement was touched by HB24-1007, because both are health-and-safety programs rather than familial-status rules.

Colorado Rewrote Its Security Deposit Statute Effective January 1, 2026

House Bill 25-1249, signed June 3, 2025, is the change most likely to cost you money this leasing cycle, and almost nobody writing about Colorado student rentals has covered it.

Start with what you can no longer keep. You may not retain any part of a deposit for normal wear and tear, and — this is the new part — you may not retain any part of it for damage or a defective condition that predated the tenancy. Lease clauses assigning a cleaning or repair fee for either are void as against public policy. That last line matters: the boilerplate carpet-cleaning fee in a lease you have used for six years is now unenforceable.

Two specific carve-outs deserve attention because student rentals get hit by both. Carpet cannot be withheld against unless the damage is substantial, irreparable, beyond normal wear, and did not preexist — and carpet that has not been replaced in the ten years before lease termination cannot be deemed substantially and irreparably damaged at all. Interior repainting throughout the unit is subject to the same test. The annual repaint-and-recarpet turnover budget many student landlords run on is now something you absorb, not something you bill.

The mechanics changed too. Deposits return within 30 days of termination or surrender unless the lease sets a longer period, capped at 60. If you withhold anything, you must hand over every document you hold that relates to the retention — photos, inspection forms, receipts, invoices, estimates — within 14 days of the tenant asking. Either party can request a walk-through inspection, in person or virtually. Miss the return deadline and you waive all rights to retain any portion at all.

On the penalty side, a tenant must give you seven days' notice before filing, and bad-faith retention exposes you to treble damages plus attorney fees and costs. Those seven days are your last clear chance to fix a mistake. Use them.

Repair Clocks Under the Warranty of Habitability Are 24 and 72 Hours

Colorado Revised Statutes 38-12-503 gives you 24 hours to commence remedial action on a condition that materially interferes with the tenant's life, health or safety, and 72 hours on a condition that renders the premises uninhabitable under 38-12-505. Commence, not complete — but you have to actually start.

Two related duties catch owners out. For a condition materially interfering with health, life or safety, you may have to provide a comparable unit or a hotel room at your cost within 24 hours of the tenant asking. And you are required to keep records of all correspondence and documentation about the uninhabitable condition for three years after the lease ends.

Where to List a Colorado Student Rental

Students at CU Boulder, Colorado State, UNC and Colorado School of Mines search by campus, not by metro. Find My Place lets private owners list a place directly — a basement unit, a condo, a house or two — with per-bedroom pricing shown natively and verified reviews attached to the property. If you want to understand what Boulder students actually screen landlords on before they sign, our guide to student-friendly Boulder landlords is written from their side of the table. Earlier in the process, start with renting out your house to college students, and see the state-by-state rental license guide for how Colorado compares.

This is general information about Colorado law as of August 2026, not legal advice. The HB25-1249 deposit rules are only months old and Boulder is still rewriting its occupancy ordinances. Confirm your city's current code and talk to a Colorado attorney before you sign anything.

Frequently Asked Questions About Renting to Students in Colorado

Can I put five students in a five-bedroom Boulder house?

If every bedroom clears 70 square feet and the common areas meet IPMC table 404.5, yes. Boulder stopped enforcing its unrelated-occupant cap after HB24-1007 took effect in July 2024. The constraint is now floor area, not relationships — so measure the rooms rather than counting the tenants.

Do I need a rental license in Colorado?

Not from the state, and not in most Colorado towns. But Boulder requires a long-term rental license gated on a SmartRegs energy inspection, and Fort Collins has required annual registration since January 1, 2025 at $37 per property plus $10 per additional unit. Check the city.

Can I still charge students for repainting and carpet cleaning at move-out?

Not as a routine deduction, not since January 1, 2026. HB25-1249 bars withholding for normal wear and tear, voids lease clauses that assign those fees, and blocks a carpet claim outright if the carpet has not been replaced in the previous ten years. Damage that genuinely exceeds wear and tear and did not preexist the tenancy is still chargeable.