Colorado Landlord Guide to Emotional Support Animal and Service Animal Requests
Since August 12, 2026, Colorado law presumes that allowing an assistance animal is reasonable, even as HUD narrowed its federal focus. This guide gives owners and property managers a lawful, low-friction way to handle requests.
The Free Screening is for residents; share it with tenants who are unsure where to start.
How the Rules Moved in One Year
Colorado landlords now work under a state standard that is stronger than HUD's current enforcement posture.
HUD withdraws guidance
The federal notices many managers relied on for assistance animal policies were pulled.
HUD narrows enforcement
Federal cases now focus on animals trained to do disability-related work.
Colorado codifies the old guidance
HB 26-1045 covers ESAs as assistance animals, presumes approval is reasonable and presumes blanket bans are discriminatory.
Can I Ask for That?
Pick a step you are considering. The answer summarizes Colorado law and common fair housing practice, with hedges where the law is unsettled.
For a specific dispute, talk with a Colorado attorney familiar with fair housing.
A Six-Step Workflow for Property Managers
Acknowledge promptly
Treat any clear request as a request, even if it arrives verbally or without a form.
Decide if the need is obvious
If the disability and the animal's role are apparent, documentation should not be required.
Ask for reasonable documentation
Focus on the disability and the disability-related need, not a diagnosis or medical records.
Engage in good faith
Colorado's presumption of reasonableness applies once you have had the chance to discuss the request.
Decide in writing
Approvals should note the animal and any neutral rules; denials should state specific reasons.
Keep the file private
Store documentation separately from the general tenant file and share it only as needed.
Verifying a Letter Without Overreaching
Letters vary in quality. A careful review protects you from both fraud and a discrimination claim.
Reasonable to check
- The clinician's name, license type and number
- License status through a state lookup
- That the letter connects a disability to the need for the animal
Colorado's meeting rule
Mental health licensees and nurses must have met the patient in person before a written finding; physicians may also use telemedicine.
The same statutes say they do not limit how a person may show a disability or need, so a question about the letter calls for follow-up, not an automatic denial.
Usually off limits
- Demanding a diagnosis or full medical records
- Requiring a registry, certificate or ID card
- Calling the clinician to question the patient's treatment
When a Denial May Hold Up, and When It Will Not
Colorado narrows the reasons that work. Build any denial on facts about this animal and this request.
Reasons with legal footing
- Documented, specific conduct showing a direct threat to others' health or safety
- Documented, specific conduct causing substantial physical damage
- An undue financial or administrative burden, or a fundamental change to the housing
- No disability-related need shown after a reasonable documentation request
Reasons that usually fail
- A no-pets policy or a complete ban on animals
- Breed, size or weight alone
- Speculation that the animal might cause damage someday
- The letter came from telehealth, without any further inquiry
Suspect fraud? Colorado's misrepresentation offense, C.R.S. 18-13-107.3, applies only after the person received a written or verbal warning, and fines are modest. A clinician's written finding is an affirmative defense.
Fees, Deposits and Damage
Colorado sets clear numbers for ordinary pets and a clear rule for trained service animals. Emotional support animal fees are the gray area.
Security deposits generally must be returned within one month, or up to 60 days if the lease says so, with itemized deductions. See the pet rent and deposit guide.
Applications, Screening Reports and Insurance
Two other Colorado laws often come up at the application stage.
Portable screening reports
Under HB 23-1099, landlords must accept a qualifying portable tenant screening report and may not charge an application fee to an applicant who provides one.
Keep assistance animal paperwork separate from screening fees, and avoid charging for accommodation requests through third-party portals.
Breed and insurance
Homeowner's and dwelling fire insurers in Colorado may not refuse, cancel or raise rates because of a dog's breed, except for a dog known or declared dangerous.
If your commercial policy has other terms, read the actual language before citing it as a reason to deny.
Neutral House Rules You Can Keep
An accommodation changes pet restrictions, not community standards. Apply these evenly to every animal on the property, including in shared spaces.
- Leashes in hallways and grounds
- Prompt waste pickup
- Noise and nuisance limits
- Current local licensing and vaccines
- Notice before entering a unit with an animal
- Responsibility for actual damage
Records and Deadlines to Track
Good records are the best defense if a tenant files a complaint later.
When the request first reached anyone on your team.
Documentation requests, replies and meeting notes.
Window for a complaint to the Colorado Civil Rights Division.
General deadline for a private federal Fair Housing Act lawsuit.
Plans to Share With Residents
Tenants asking where to get legitimate documentation can start with the Free Screening. Current plans and prices are below.
Questions Landlords Send Us
Can a Colorado landlord ask for an ESA letter?
Yes, when the disability or the need for the animal is not obvious. Colorado says that requesting reasonable documentation, or engaging in a good-faith interactive process, is not discrimination by itself.
Can a landlord charge a pet deposit for an emotional support animal in Colorado?
Colorado expressly bars extra charges for trained service animals and caps deposits and rent for ordinary pets. The 2026 amendments do not address fees for approved ESAs, so charging extra carries legal risk; get advice before doing it.
What is a valid reason to deny an assistance animal?
Documented, specific conduct by the animal that threatens others' health or safety or causes substantial property damage, or a request that would create an undue burden. Breed, size or a no-pets policy on its own is generally not enough.
Can I reject an ESA letter written by an online clinician?
Not automatically. Colorado's licensing statutes require some clinicians to meet patients in person, but they also state that they do not limit how a person may show a disability or need. Verify the license and ask follow-up questions instead of issuing a blanket rejection.
Can I require tenants to use a pet screening portal for assistance animals?
A portal can collect information, but avoid charging fees for assistance animal requests and accept reasonable documentation delivered another way when the portal becomes a barrier.
How long do tenants have to file a housing discrimination complaint in Colorado?
One year with the Colorado Civil Rights Division. A private lawsuit under the federal Fair Housing Act generally has a two-year deadline.
More Resources for Colorado Rentals
General information for Colorado housing providers, current as of September 2026. It is not legal advice, and the interactive tool is a summary, not a determination for any property or tenant. Consult a Colorado attorney about specific requests.
Clear Requests Make Easier Decisions
When residents arrive with legitimate, clinician-reviewed documentation, everyone spends less time going back and forth.
Point residents to the free screening or current pricing:
