Meet a Colorado-licensed mental health professional by phone or video. If you're approved, your signed ESA letter arrives in 10-15 minutes.
Thornton is a fast-growing Adams County suburb along Interstate 25, north of Denver, and the RTD N Line commuter rail serves the city.
A letter from a Colorado-licensed mental health professional is the documentation behind a reasonable accommodation request — the step that lets a renter ask to set aside a no-pet rule, pet rent and pet deposits.
With roughly 148,000 residents, Thornton in Adams County is Colorado’s sixth-largest city. Renters across Original Thornton, Eastlake, Riverdale, Trail Winds and Northglenn rely on the same fair housing protections, whatever the building or landlord.
Colorado's HB26-1045, signed May 28, 2026 and effective August 12, 2026, adds assistance animals, including untrained emotional support animals, to the Colorado Anti-Discrimination Act's housing rules. Housing discrimination complaints can be filed with the Colorado Civil Rights Division (Colorado Civil Rights Commission) or with HUD. For the details, read our Colorado ESA law guide.
Complete a free pre-screening and meet a mental health professional licensed in Colorado by phone or video. If approved, your signed letter arrives within 10-15 minutes. You aren’t charged unless you’re approved.
Your letter is for housing — apartments, condos, HOAs and student housing. It doesn’t grant public access to stores or restaurants, and airlines have treated emotional support animals as pets since 2021.
Explore the Colorado housing rights guide, check current pricing, review renewal timing, or see the psychiatric service dog option. You can also return to the Colorado overview.
Flat pricing · you only pay if approved.
It is. Thornton landlords look at whether a licensed Colorado professional actually evaluated you; telehealth evaluations are standard practice.
Usually not. A landlord has to consider a reasonable accommodation request backed by a valid letter and can deny it only on limited grounds, such as a direct threat or undue burden. Small owner-occupied buildings may be exempt.
Most people are seen the same day, and if you’re approved the signed letter arrives within 10-15 minutes.
It does. The professional must hold an active Colorado license, which is who you’re matched with when you select Thornton.
Yes. The Fair Housing Act reaches HOAs, condo boards and co-ops, so community pet rules are subject to the same reasonable accommodation process.
$129 covers an ESA letter for up to two pets ($199 for three or more); PSD letters run $149 or $229. You aren’t charged unless a licensed professional approves you.
Local ESA guides for other cities in Colorado.
Free pre-screening · Licensed in Colorado · You only pay if approved
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