Colorado Landlord Guide to ESA Accommodation Requests
The Fair Housing Act requires Colorado landlords to make reasonable accommodations for tenants with Emotional Support Animals. Here's exactly what you must do — and what you can legally decline.
What the Fair Housing Act Requires of Colorado Landlords
The FHA (42 U.S.C. § 3604(f)) applies to virtually all Colorado rental housing. Here's a clear breakdown of your legal obligations.
You MUST Do These Things
- Accept and process ESA accommodation requests in good faith
- Respond to accommodation requests within a reasonable time (typically 10 business days)
- Allow an ESA in no-pets or pet-restricted housing if the request is valid
- Waive breed, size, and weight restrictions for valid ESAs
- Waive any pet deposit, pet fee, or monthly pet rent for the ESA
- Allow the tenant to keep the ESA for the duration of their tenancy
- Engage in an "interactive process" if you need clarification on the request
You CANNOT Do These Things
- Deny an ESA request solely because of a no-pets policy
- Charge any fee, deposit, or surcharge specifically for the ESA
- Require the tenant to disclose their specific psychiatric diagnosis
- Ask for medical records, treatment history, or therapy notes
- Demand that the ESA be professionally trained or certified
- Ignore or unreasonably delay responding to an accommodation request
- Evict or threaten to evict a tenant for having an ESA after accommodating it
- Treat ESA tenants less favorably in lease renewals or other terms
When You May Legally Deny an ESA Request
Direct Threat
The specific animal poses a documented direct threat to others based on actual behavior — not breed, size, or speculation.
Substantial Property Damage
The specific animal has caused or would cause significant property damage beyond normal wear and tear.
Owner-Occupied Small Building
Buildings with 4 or fewer units where the owner lives in one unit are partially exempt from FHA ESA requirements.
How to Verify an ESA Letter Is Legitimate
Under HUD 2020 guidance, you can ask for certain information to verify a valid ESA request. Here's what to look for — and what questions you cannot ask.
What a Valid ESA Letter Contains
- Clinician's full name and professional title (LCSW, LPC, Psychologist, etc.)
- Colorado state license number (verifiable on DORA website)
- Date the letter was issued (within past 12 months is standard)
- Tenant's full legal name
- Statement that the tenant has a disability-related need for an ESA
- Clinician's signature
- Clinician's contact information for verification
Questions You CAN Ask
- Confirmation that the tenant has a disability (yes/no only)
- Confirmation that the ESA is needed due to the disability
- The clinician's license number and state
- Whether the clinician has a legitimate patient relationship with the tenant
Questions You CANNOT Ask
- The tenant's specific diagnosis or condition name
- Medical records or treatment history
- How severe the disability is
- Why they need that specific type of animal
- Proof the ESA is "trained" or certified
The ESA Accommodation Process: Step-by-Step for Colorado Landlords
Follow this process to handle ESA requests legally and efficiently.
Receive the Written Accommodation Request
Day 0The tenant submits a written Reasonable Accommodation Request along with their ESA letter. They are NOT required to use a specific form. Any written request citing the FHA and providing a valid ESA letter is sufficient.
Review the ESA Letter
Days 1–3Verify the letter contains all required elements: clinician name, Colorado license number, date, tenant name, and a statement of disability-related need. Optionally verify the license on DORA. Do NOT contact the clinician without permission from the tenant.
Request Clarification If Needed (Carefully)
Days 3–5If the letter is unclear or incomplete, you may request limited clarification through the tenant — not directly from the clinician. You may only ask whether the tenant has a disability and whether the ESA is needed because of that disability. You cannot ask for a diagnosis.
Approve or Deny in Writing
By Day 10You must respond within a reasonable time (10 business days is the Colorado standard). Approval should be in writing. If denying, you must state a specific legal reason — not just "we don't allow pets." Invalid denials expose you to CCRD and HUD complaints.
Update the Lease Addendum
Day 10–14Upon approval, add a lease addendum acknowledging the ESA accommodation. You may include reasonable behavioral requirements (e.g., leash in common areas, no excessive noise) but cannot impose pet-specific fees or restrictions on the ESA.
Colorado FHA Enforcement: What Happens If You Violate the Law
ESA violations are taken seriously by both federal and Colorado state authorities.
HUD Civil Penalties
First-offense FHA violations: up to $23,011. Second offense (within 5 years): up to $57,527. Third offense: up to $115,054.
CCRD Enforcement
The Colorado Civil Rights Division can issue cease-and-desist orders, require payment of actual damages, and impose civil penalties under the Colorado Anti-Discrimination Act.
Private Lawsuits
Tenants can sue in federal or state court for actual damages, punitive damages, and attorney's fees. Colorado fair housing attorneys often take these cases on contingency.
Colorado Enforcement Contacts
Colorado Civil Rights Division (CCRD):
ccrd.colorado.gov | (303) 894-2997
HUD Colorado Regional Office:
hud.gov/program_offices/fair_housing
Denver Metro Fair Housing Center:
denvermetrofairhousing.org
Landlord Best Practices
- Create a written ESA accommodation policy for all properties
- Train property managers on FHA ESA requirements
- Respond to ALL accommodation requests in writing
- Never charge ESA-related fees — even if "everyone does it"
- When in doubt, consult a Colorado fair housing attorney
Colorado Landlord ESA — Frequently Asked Questions
My tenant submitted an ESA letter from an online service. Is it valid?
Under HUD 2020 guidance, ESA letters from online platforms are not automatically invalid — but they must still meet all requirements: a licensed clinician must have conducted a genuine assessment of the tenant, the letter must include a Colorado license number (verifiable on DORA), and the clinician must be available for follow-up verification. Letters that are purely automated with no actual clinical review are not valid.
Can I require that my tenant use a specific ESA letter provider?
No. You cannot require tenants to use a particular service or provider for their ESA letter. As long as the letter meets HUD requirements and is signed by a Colorado-licensed clinician, you must accept it.
My building is new construction and has an allergen policy for the common areas. Does the FHA still apply?
Yes. The age of the building does not affect FHA applicability. If another tenant has a documented allergy, the landlord's obligation is to find a reasonable solution that accommodates both tenants — but this does not automatically allow you to deny the ESA.
A tenant's ESA dog is a pit bull, which my insurance prohibits. What can I do?
Under the FHA, you cannot deny an ESA based on breed restrictions. If your insurance specifically excludes liability for certain breeds and you can document this in writing, HUD has acknowledged this is a legitimate business consideration — but you must still make a good-faith effort to find alternative insurance before denying. This area of law is still evolving; consult a Colorado fair housing attorney.
My tenant has two ESAs — a dog and a cat. Do I have to accommodate both?
Possibly. HUD guidance says a landlord must accommodate multiple assistance animals if each is separately supported by the tenant's disability-related need. You may request documentation for each animal individually. However, you cannot deny all ESAs just because there are multiple animals.
How long do I have to respond to an ESA accommodation request in Colorado?
The FHA does not specify a precise timeframe, but HUD considers 10 business days to be a reasonable response time. Longer delays without communication are considered constructive denial and could expose you to fair housing complaints.
Can I create a 'no ESA' policy for my property?
No. A blanket no-ESA policy violates the FHA's reasonable accommodation requirements. Individual requests must be evaluated on a case-by-case basis. You can maintain a no-pets policy, but ESAs must be exempted from that policy when a valid accommodation request is received.
Related ESA Resources
Need a Verified Colorado ESA Letter?
Colorado Service Animals issues ESA letters exclusively through Colorado state-licensed clinicians. Every letter includes a license number (verifiable on DORA), is formatted to HUD standards, and includes free landlord verification service.