Fort Collins · Larimer County

Fort Collins Emotional Support Animal and Service Dog Guide

A college town, a bike commute and a rental market reshaped when U+2 ended. Here is how an assistance animal fits into a Fort Collins lease, a Transfort ride and a walk along the Poudre in 2026.

Old Town Square in Fort Collins with a painted horse sculpture, benches and historic storefronts
Wusel007, CC BY-SA 3.0

Life After U+2: Roommates, Leases and a Support Animal

For decades Fort Collins capped most homes at one family plus two unrelated people. That cap is gone, which changes who signs the lease and who shares space with your animal.

Before July 2024

Unrelated renters often split into smaller households, and some roommates lived "off lease" to stay under the limit. An accommodation request could reach only the people named on paper.

Now

Larger shared rentals are legal again, subject to health, safety and building code limits. Put every adult on the lease, and tell housemates about the animal before move-in so allergies or fears surface early.

April 15, 2024: HB 24-1007 signedJuly 1, 2024: statewide effective dateJuly 2, 2024: City Council repeals occupancy rules

Registered Rentals Since January 2025

Most long-term rentals in the city, meaning leases of 30 days or more, now have to be registered with Fort Collins. Owner-occupied rentals and homes in mobile home parks are exempt.

Registration does not change assistance animal law, but it gives tenants a city program to ask about housing standards. When a request stalls, the city's Rental Housing team can explain local resources while state complaints still go to the civil rights division.

Fort Collins rental registrationAt a glance
Applies toMost leases of 30+ days
ExemptOwner-occupied, mobile home parks
Inspection requiredNo
Base fee$37 per property
Enforcement began2025

Four Colorado Rules a Fort Collins Lease Cannot Override

Your landlord may be local, but these protections come from state statute and apply across Larimer County. The Colorado housing law explainer goes line by line.

C.R.S. 24-34-301

ESAs count

Since August 12, 2026, "assistance animal" covers emotional support animals as well as service animals.

C.R.S. 24-34-502.2

No blanket bans

Banning assistance animals outright is presumed discriminatory, and allowing one is presumed reasonable after a chance to discuss it.

C.R.S. 24-34-803

Service animals cost nothing extra

No added charge for a trained service animal in housing, and the handler still pays for real damage.

C.R.S. 38-12-106

Pet charge caps

For ordinary pets, a refundable deposit of $300 at most and monthly pet rent capped at $35 or 1.5% of rent.

Who May Sign a Housing Finding, and How They Must Meet You

Colorado's licensing laws add a step many online services skip. The requirement depends on the clinician's license, so ask before you book.

Mental health licensees

Psychologists, counselors, social workers and marriage and family therapists must have met you in person (C.R.S. 12-245-229).

Nurses

The nursing statute uses the same in-person wording (C.R.S. 12-255-133).

Physicians

May meet you in person or by telemedicine (C.R.S. 12-240-144). Every license type must also know you and your condition well enough to decide.

Green Transfort MAX bus crossing an intersection at West Prospect Road in Fort Collins
Jeffrey Beall, CC BY 4.0

Riding Transfort and the MAX

Service animals board with youThe animal must stay under your control for the whole trip.
Everything else rides in a carrierTransfort asks for a fully contained, secured carrier for pets, which includes emotional support animals.
CSU commutersCampus housing has its own process; the Colorado college student guide covers residence halls.
Cache la Poudre River flowing past cottonwoods and a footbridge in Poudre Canyon
USDAgov, public domain

Poudre Trail Days With a Working Dog

From the Poudre River Trail in town to Horsetooth Mountain above it, a service dog follows the same posted rules as other dogs unless a trained task genuinely requires otherwise.

  1. Read the trailhead sign. City natural areas, county open space and state land each post their own leash and closure rules.
  2. Carry water. Dry air and altitude tire dogs faster than many newcomers expect.
  3. Watch for rattlesnakes and river current. Keep dogs close on rocky slopes and out of fast spring runoff.
  4. Keep the vest on duty. An ESA has no public access right, so trail rules for pets apply to it in full.

Licensing a Dog or Cat Through NOCO Humane

Fort Collins requires dogs and cats to be licensed, and NOCO Humane, the nonprofit formerly known as Larimer Humane Society, sells licenses and runs animal protection and control for the city under contract.

Colorado exempts a service animal owned by a person with a disability from state and local licensing fees. That is a fee exemption, not a pass on vaccination or control rules, so ask NOCO Humane how it records the exemption.

Old Town Errands: Where Each Animal Can Go

Old Town's breweries, bookstores and patios decide pet policy for themselves, but trained service animals follow state and federal public access law.

Grocery storeService dog yes; ESA only if the store allows pets
Brewery patioService dog yes; ESA by house rules
Library or city buildingService dog yes; ESA follows the building's pet policy
Your apartmentBoth, once an accommodation is approved

Details on handlers, trainers and penalties are in Colorado service dog laws.

The two questions staff may ask

1. Is the dog required because of a disability?

2. What work or task has the dog been trained to perform?

No papers, vest or demonstration can be demanded. A dog that is out of control or not housebroken can still be asked to leave.

Larimer County Help, Sorted by Urgency

988 · any hour

Crisis support

Call or text 988 to reach the 988 Colorado Mental Health Line.

SummitStone Health Partners also runs a walk-in crisis center at 2260 W Trilby Rd, open 24/7 to Larimer County residents.

Ongoing care

SummitStone Health Partners

The community mental health provider for Larimer County.

Within 1 year

Colorado Civil Rights Division

Housing discrimination complaints under state law.

Licenses and strays

NOCO Humane

Animal licensing, protection and control for Fort Collins.

Rental questions

City Rental Housing program

Registration and housing standards resources for tenants and owners.

Plans for Fort Collins Residents

Take the Free Screening first. If an evaluation makes sense, these are the current options and prices.

$149
ESA letter
ESA Housing Letter For One Pet
Plan Overview
$159
ESA bundle
ESA Housing Letter For Multiple Pets
Plan Overview
$199
PSD evaluation
PSA Letter
Plan Overview

Fort Collins Questions, Answered

Does Fort Collins still enforce the U+2 occupancy rule?
No. A 2024 state law stopped cities from limiting occupancy by family relationship as of July 1, 2024, and City Council removed its occupancy regulations the next day. Limits tied to health, safety and building codes can still apply.
Do I have to license my service dog with NOCO Humane?
Fort Collins requires dog and cat licenses, which NOCO Humane sells. Colorado exempts a service animal owned by a person with a disability from state and local licensing fees, so ask NOCO Humane how that exemption is handled for your dog.
Can an emotional support animal ride a Transfort bus?
Transfort lets riders bring a service animal that stays under their control. Any other animal, including an emotional support animal, must travel in a fully contained and secured pet carrier.
Where can I get mental health help in Fort Collins at any hour?
SummitStone Health Partners offers walk-in crisis services around the clock at 2260 W Trilby Rd for people living in Larimer County. You can also call or text 988 at any time.
Can a Fort Collins landlord charge pet rent for an emotional support animal?
Colorado limits pet rent and pet deposits for ordinary pets and bans extra charges for trained service animals. The 2026 assistance animal law does not address fees for ESAs, so get any charge in writing and ask the Colorado Civil Rights Division if you think it is unfair.
Can a Fort Collins therapist write an ESA letter after only a video visit?
Colorado says licensed mental health professionals and nurses must have met the patient in person before making a written assistance animal finding for housing. Physicians may meet in person or by telemedicine.

Keep Reading

General information for Fort Collins and Larimer County residents, current as of September 2026. It is not legal or medical advice. National Service Pets is not affiliated with the City of Fort Collins, Transfort, NOCO Humane or SummitStone Health Partners; confirm details with them directly.

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