# ESA Letter in Chicago, IL: The One Illinois Rule That Says "ESA"

> Chicago's Commission on Human Relations wrote emotional support animals into its own regulation. No Illinois statute does. Here is what Rule 420.180 gives you.

- Source: https://supportanimal.com/blog/illinois-emotional-support-animal/chicago/
- Publisher: Support Animal (supportanimal.com)
- Updated: 2026-08-10
- License note: informational content; not legal or medical advice.

## Key facts

- Population: 2,721,308
- Households renting: 54%
- Typical pet deposit (as a pet): Varies by building
- Typical pet rent (as a pet): Varies by building
- Breed/weight limits common: sometimes
- Pet fees, deposits, and breed limits with a valid ESA letter: none (FHA reasonable accommodation)

## Illinois never wrote it down. Chicago did.

The Illinois Human Rights Act protects your emotional support animal, but it
does it silently. The word "animal" appears nowhere in the statute. Tenants
get there by arguing that a no-pets clause is a rule, and that setting a rule
aside for a disability is a reasonable accommodation.

Chicago tenants can skip the argument. The Commission on Human Relations
enforces the city's Fair Housing Ordinance, and it has published regulations
saying what the ordinance requires. Rule 420.180 is headed "Discrimination
Against Persons with Disabilities." Its subsection (b) makes refusing a
reasonable accommodation a violation, and the first example it gives is:

> allowing persons who use emotional support animals or service animals on the
> premises despite a "no pets" rule

That sentence is the most specific authority any Illinois renter has. The
state statute does not name your animal. Neither does the state's housing
regulation. Cook County's rules do not either — a search of the county
Commission's 61 pages of substantive and procedural rules turns up the word
"animal" zero times. Chicago's rulebook names it in the first example under
the disability heading.

## What that changes in a leasing office

A Chicago lease may restrict animals in any number of ways short of a flat
ban: a breed schedule, a weight ceiling, a limit on how many animals a unit
may hold, or a pet-rent field in the online application that will not let you
submit without a number.

Each of those is a rule, which is the exact word the regulation uses. The
request is not "please make an exception because I love my dog." It is that
the policy has to give way where the accommodation is necessary for equal
opportunity to use and enjoy the unit. A breed schedule, a weight ceiling and
a pet-rent line are all the same kind of object in the eyes of Rule 420.180.

## 365 days, free, and you need not live here

The Commission must receive your complaint within **365 days of the
incident**, and there is no cost to file. Two conditions attach, and only two
worth worrying about: the discrimination has to have happened in Chicago, and
that is it. **you do not have to be a Chicago resident** to file about a
Chicago building. Someone refused an apartment in Logan Square while living in
Berwyn can still use the Commission.

That year is worth appreciating. Cross the city line into suburban Cook County
and the window is 180 days at the county Commission. Same metropolitan area,
half the time.

## Chicago has no ceiling, and that is the point

Here is the fact that surprises people. **The Residential Landlord and Tenant
Ordinance does not cap your security deposit and says nothing about pets.**
The RLTO is a genuinely strong tenant law. It governs deposit receipts, the
escrow account, interest, itemisation within 30 days and return within 45,
but it sets no maximum, and it has no pet-fee or pet-deposit provision at all.
Illinois law caps nothing either.

So a Chicago landlord may charge whatever the market bears in pet rent to a
tenant with an ordinary pet. There is no number to point at.

For an assistance animal that absence does not matter, because the protection
was never a ceiling. Charging you for the animal is charging you for the
accommodation, and the accommodation is what the Fair Housing Ordinance says
you are owed. The fee fails for the same reason a flat refusal would.

## Damage is still yours, and the clock protects you

Approval is not immunity. If the animal chews a door frame, that is yours.

What Illinois gives you is a rigid process for how it comes out of your
deposit. Under 765 ILCS 710/1 the landlord has 30 days from the later of your
moving out or your right of possession ending to send an itemised statement of
damage with the paid receipts attached. Miss that, and the whole deposit is
due back within 45 days. If a court finds the landlord refused to itemise, or
itemised in bad faith, and kept money anyway, the award is **twice the
deposit** plus court costs and attorney's fees.

## More Illinois renters live here than anywhere else

Chicago has 1,160,205 occupied homes and 626,193 of them are rented: a
**54.0%** renter share against 32.9% for Illinois as a whole, on the Census
Bureau's 2020–2024 five-year estimates. The city's own housing department
gives approximately the same figure.

The number that matters more is the share of the state. **Chicago holds 37.8%
of every renter household in Illinois.** More than a third of Illinois tenants
answer to one ordinance, one commission and one 365-day clock. Nowhere else in
the state does a single local rulebook cover that many renters, which is why
Rule 420.180 does more practical work than any other local provision in
Illinois.

## Where the city rule stops

Two limits are worth stating plainly so you do not over-rely on the ordinance.

The ordinance's physical-access provision, at MCC 5-8-030(A), says it does not
mandate modifications, accommodations or other actions that the federal Fair
Housing Amendments Act and its regulations would not also require. That is
about structural access rather than about animals, but it is a reminder that
the city rule is not a free-standing super-statute.

And the Commission's reach ends at the city limits. If your building is in
Cicero or Evanston, Rule 420.180 does nothing for you. You are on the county
ordinance, your own suburb's, or the state Act. The Chicago rule is generous
and it is local.

## You are not limited to one door

Chicago does not make you choose, and that is not true everywhere in Illinois.

You can go to the Commission within 365 days. You can file a housing charge
with the Illinois Department of Human Rights within one year under 775 ILCS
5/7B-102(A)(1). Or you can sue in circuit court within **two years** under 775
ILCS 5/10-102(A), where either side may demand a **jury**, and where paragraph
(3) lets you file whether or not you ever went to the Department.

If the landlord leans on you for asking (threats, sudden inspections,
pressure to withdraw), that is a separate violation under 775 ILCS 5/3-105.1,
which covers coercing or interfering with someone exercising a fair housing
right, and with anyone who helped them.

## Nothing to register, and nobody selling it

No Chicago agency and no Illinois agency registers or certifies emotional
support animals. Rule 420.180 does not mention a certificate, an ID card, a
vest or a registry, because none of those exist in law. A landlord is free to
disregard a printout from a registration website, and a good one will.

What actually answers the question a landlord is allowed to ask (where your
disability and your need for the animal are not obvious) is documentation
from a licensed professional who knows you and can explain why the animal
matters for your condition. That is what turns a request into one the
ordinance obliges your landlord to engage with.

## Getting help in Chicago

The Commission on Human Relations takes the complaint itself and will walk you
through filing. Legal Aid Chicago provides free civil legal services across
Cook County. Cook County Legal Aid for Housing and Debt is open to Cook County
residents regardless of income, language or immigration status. And Equip for
Equality is the state's protection and advocacy organisation for people with
disabilities, which makes it the most directly relevant of the four if the
dispute is really about whether your disability is being taken seriously.

## What Chicago landlords can and cannot do

**Cannot:**
- Cannot refuse to make a reasonable accommodation in rules, policies, practices or services when it may be necessary to give a tenant with a disability an equal opportunity to use and enjoy a dwelling, under 775 ILCS 5/3-102.1(C)(2), which is what a request to waive a no-pets rule for an assistance animal asks for
- Cannot treat a mental-health disability as outside the Act, because 775 ILCS 5/1-103(I)(1) defines disability as a determinable physical or mental characteristic and the housing article adds only that it be unrelated to the person's ability to acquire, rent or maintain a housing accommodation
- Cannot demand that the animal be trained, certified, registered or of a particular species, none of which appears anywhere in the Illinois Human Rights Act. The word "animal" does not appear in the Act at all
- Cannot refuse to rent because of the disability of a person who will live in the unit or of anyone associated with the renter, not only the person signing the lease, under 775 ILCS 5/3-102.1(A)
- Cannot alter the terms, conditions or privileges of a tenancy, or the services and facilities that come with it, because of a disability, under 775 ILCS 5/3-102.1(B)
- Cannot increase for a person with a disability any customarily required security deposit, in the express words of 775 ILCS 5/3-102.1(C)(1)
- Cannot coerce, intimidate, threaten or interfere with a tenant who asks for an accommodation, or who helped someone else ask, under 775 ILCS 5/3-105.1, a separate civil rights violation from refusing the request
- Cannot keep any part of a security deposit for damage without sending an itemised statement with paid receipts within 30 days, or must return the whole deposit within 45 days, under 765 ILCS 710/1: a duty that reaches every Illinois landlord since Public Act 103-224 removed the five-unit threshold on January 1, 2024
- Cannot rely on 775 ILCS 5/3-104.1 to justify a charge, because that section is written for blind, hearing impaired and physically disabled tenants and grants a landlord nothing in any event

**Can:**
- May ask for information establishing the disability and the disability-related need for the animal where neither is obvious, the enquiry 24 C.F.R. § 100.202(c) leaves open
- May refuse an accommodation that is not reasonable. One imposing an undue financial or administrative burden, or requiring a fundamental alteration of the landlord's operations
- May hold a tenant liable for damage the animal actually causes, and may recover it from the deposit through the itemised statement 765 ILCS 710/1 requires
- May enforce the ordinary terms of the tenancy against a tenant with an assistance animal: rent, noise, cleanliness and lease conduct rules apply the same way they apply to everyone else
- May set a security deposit at any amount, Illinois capping none, and may charge pet fees and pet rent to tenants generally, since no Illinois statute regulates them, which is exactly why the accommodation, rather than a ceiling, is what removes the charge for an assistance animal

## How to get an ESA letter in Chicago

1. **Check that you qualify**, Answer a short screening about how your condition affects daily life in Chicago. No diagnosis paperwork needed up front. (About 5 minutes: free)
2. **Connect with a licensed professional**, You are matched with a provider licensed for Illinois clients who reviews your situation in a telehealth evaluation. (Telehealth evaluation)
3. **Complete your evaluation**, The professional evaluates whether an emotional support animal alleviates symptoms of a condition recognized in the DSM-5. Honest evaluations, not everyone qualifies. (Most of Our Applicants Qualify)
4. **Receive your signed letter**, Your letter arrives on the professional's letterhead with their license number: the documentation Illinois landlords may lawfully request. (Typically within days of approval)
5. **Send it to your landlord**, Submit the letter with a short reasonable-accommodation request. Pet fees, pet deposits, and breed limits no longer apply to your animal in Chicago. (Protection under FHA + state law)

## Conditions that can qualify for an ESA

No fixed government list exists. A licensed professional evaluates whether an animal alleviates symptoms of a DSM-5-recognized condition, commonly:

- Generalized anxiety disorder
- Major depressive disorder
- Post-traumatic stress disorder (PTSD)
- Panic disorder
- Social anxiety disorder
- Obsessive-compulsive disorder (OCD)
- Bipolar disorder
- Attention-deficit/hyperactivity disorder (ADHD)
- Phobias with housing impact
- Chronic stress affecting daily function

## Housing help in Chicago

- [Chicago Commission on Human Relations](https://www.chicago.gov/city/en/depts/cchr.html) (municipal agency)
- [Legal Aid Chicago](https://legalaidchicago.org/) (legal aid)
- [Equip for Equality](https://www.equipforequality.org/) (disability rights)
- [Cook County Legal Aid for Housing & Debt](https://www.cookcountylegalaid.org/) (legal aid)

## Frequently asked questions

### Is there a Chicago rule that actually mentions emotional support animals?

Yes, and it is the only one in Illinois. Chicago Commission on Human Relations Regulation Rule 420.180(b) treats refusing a reasonable accommodation as a Fair Housing Ordinance violation, and its first example is allowing a tenant who uses an emotional support animal or a service animal to keep it despite a no-pets rule. The Illinois Human Rights Act never uses the word animal, so this is the most specific authority a Chicago tenant has.

### How long do I have to file with the Chicago Commission on Human Relations?

The Commission must receive your complaint within 365 days of the incident, and filing is free. The discrimination has to have happened in Chicago, but you do not have to be a Chicago resident to file. That is a longer window than the 180 days Cook County gives suburban tenants, so a Chicago address genuinely buys you time a Cicero address does not.

### My Chicago building has a breed restriction. Does it apply to my assistance animal?

A breed schedule is a rule, and Rule 420.180(b) frames the accommodation as an exception to a rule of exactly that kind. The landlord may still refuse if the accommodation is unreasonable, or point to something the specific animal has actually done, but the breed alone is the policy the request asks to set aside. Nothing in the rule limits it by breed or by size.

### Can a Chicago landlord charge pet rent for an emotional support animal?

Not as a condition of the accommodation, because billing for the animal is refusing the accommodation. Be aware that Chicago has no fallback: the Residential Landlord and Tenant Ordinance sets no cap on deposits and says nothing about pet fees, and no Illinois statute regulates them. The protection comes from the Fair Housing Ordinance, not from a ceiling.

### Do I file with the City or with the State?

Either. The Commission takes complaints within 365 days of the incident. Separately, the Illinois Department of Human Rights takes a housing charge within one year under 775 ILCS 5/7B-102(A)(1), and 775 ILCS 5/10-102(A) lets you sue in circuit court within two years with a jury on demand and no obligation to file a charge first. Chicago does not bar you from using more than one route, unlike some Illinois cities.

### What can I do if my landlord keeps my deposit over the animal?

Damage the animal actually causes is yours to pay, but the process is strict. Under 765 ILCS 710/1 a landlord must send an itemised statement with paid receipts within 30 days of the later of your leaving or your right of possession ending, or return the whole deposit within 45 days. A court finding bad faith or a refusal to itemise awards twice the deposit plus costs and attorney's fees.

### Does the Chicago Fair Housing Ordinance cover mental health conditions?

Yes. Disability is an expressly named protected class in the ordinance at MCC 5-8-010 and 5-8-020, and Rule 420.180 is titled Discrimination Against Persons with Disabilities. State law agrees: 775 ILCS 5/1-103(I)(1) defines disability as a determinable physical or mental characteristic, and the Illinois Department of Human Rights lists disability as physical and mental.

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Get evaluated by a licensed provider: https://my.supportanimal.com/qualify?sa_source=blog&sa_medium=blog&sa_campaign=esa-guides&sa_content=markdown&ref=blog&sa_term=illinois-emotional-support-animal%2Fchicago