Service animals, emotional-support animals, and reasonable accommodation duties under the federal Fair Housing Act and C.G.S. § 46a-64c.
If a tenant or applicant with a disability asks you to change a rule or to allow a physical change to the unit, two separate legal duties are in play, and they have different rules about who pays. In Connecticut those duties come from the federal Fair Housing Act (42 U.S.C. 3604(f)) and from the Connecticut Fair Housing Act, Conn. Gen. Stat. 46a-64c. Connecticut's statute largely tracks the federal baseline rather than adding a stronger cost-shifting rule, so the practical answer is straightforward: you generally pay for accommodations (changes to rules, policies, and services) and the tenant generally pays for physical modifications.
The distinction matters because getting it wrong is itself a discriminatory housing practice. The Connecticut Commission on Human Rights and Opportunities (CHRO) enforces these rules, and a tenant has up to 300 days from the alleged act to file. This page covers the accommodation-versus-modification split, the interactive process, assistance animals, and the narrow grounds on which you can lawfully say no.
Adds sexual orientation, gender identity, marital status, age, lawful source of income (including HCV/Section 8) under § 46a-64c.
Two duties, two payers. A reasonable accommodation is a change to a rule, policy, practice, or service. Refusing one when it is necessary to give a disabled resident equal use and enjoyment of the dwelling is prohibited under 46a-64c(a)(6)(C)(ii). Because an accommodation is a change to how you operate, the cost is yours. Waiving a no-pet policy for an assistance animal, assigning a designated accessible parking space near the unit, or accepting rent a few days late to align with a disability benefit payment are all accommodations you absorb.
A reasonable modification is a physical change to the unit or common area, such as a grab bar, a ramp, or a widened doorway. Under 46a-64c(a)(6)(C)(i), you must permit the modification, but it is made at the expense of the person with a disability. Connecticut does not impose a stronger cost-shifting rule than the federal Fair Housing Act here, so in privately financed rentals the tenant pays. The exception is federally funded housing: under Section 504 the provider generally bears modification cost unless it would be an undue financial and administrative burden.
When the tenant pays for and installs a modification, you can protect the unit's condition. Section 46a-64c(a)(6)(C)(i) lets you, where it is reasonable to do so, condition permission on the renter agreeing to restore the interior to the condition that existed before the modification, reasonable wear and tear excepted.
Two practical limits apply. Restoration can only be required for changes that reasonably need to be undone; you cannot demand removal of a modification that would not interfere with the next tenant's use, such as a lowered thermostat or a repositioned outlet cover. And the condition attaches to the interior of the premises. It is prudent to put the modification approval and any restoration agreement in writing, describing the work and the move-out expectation, rather than relying on a verbal understanding.
A request does not need magic words. If a resident asks for something because of a disability, treat it as a request even if they never say the phrase reasonable accommodation. From there, the process is a dialogue, not a one-way approval or denial.
Where the disability and the disability-related need are obvious (a wheelchair user asking for a ramp), asking for proof is itself risky. Where the need is not obvious, you may request reliable documentation that the person has a disability and needs the requested change, typically a letter from a treating provider. You may not demand the diagnosis itself, medical records, or the resident's detailed medical history. If the exact request is not workable, propose an effective alternative and keep the conversation going; a flat refusal without discussing options is where landlords most often generate a CHRO complaint. Document each step, including dates and what was offered.
Assistance animals, which include both trained service animals and emotional support animals, are handled as a reasonable accommodation under 46a-64c, not under your pet policy. For a verified assistance animal, a no-pet policy, breed restriction, and weight limit do not apply, and you may not charge a pet deposit, pet rent, or pet fee.
You can still ask for verification when the disability or the animal's role is not obvious, and you can require the same standard of conduct you would of any resident: the tenant remains responsible for actual damage the animal causes and for controlling it. You cannot deny the animal based on speculation about the breed. A denial has to rest on the specific animal posing a direct threat to health or safety, or causing substantial property damage, that cannot be reduced by another reasonable accommodation.
Neither the Fair Housing Act nor Connecticut law forces you to grant every request. A denial holds up when the request is not related to a disability, when it would impose an undue financial and administrative burden, when it would require a fundamental alteration of how you operate, or when the specific individual or animal poses a direct threat to the health or safety of others or would cause substantial physical damage that no lesser accommodation can address.
The safe practice is never to reject a request outright. Explain the specific reason, and offer an alternative that would meet the need at lower cost or burden. Blanket policies, no exceptions to the no-pet rule, no reserved parking, tend to fail because they skip the individualized analysis the law requires. Remember that newer construction carries its own baseline: covered multifamily dwellings (buildings of four or more units with an elevator, plus ground-floor units in other four-or-more-unit buildings) first occupied after March 13, 1991 already had to be built to accessible-design standards under 46a-64c(a)(6)(C)(iii).
Connecticut has not enacted a statute criminalizing misrepresentation of a pet as a service or assistance animal. A Connecticut landlord who suspects fraud should still process the request properly, denial without engaging in the interactive process and without requesting reliable documentation creates FHA liability that far exceeds any plausible harm from a fraudulent ESA claim.
The most common mistake in Connecticut reasonable-accommodation cases is responding with a flat denial, "no pets means no pets", instead of engaging in the interactive process. The interactive process is itself a substantive duty. A landlord who refuses to consider the request, demands more than HUD permits, or imposes a pet fee on an assistance animal will lose at HUD even if the underlying accommodation could have been reasonably denied.
Reasonable modification (42 U.S.C. § 3604(f)(3)(A)) is a structural change, a grab bar, a ramp, lowered cabinets. The tenant pays. The landlord must permit the modification and may require restoration to original condition at move-out (except for changes that would not significantly affect re-rental). Reasonable accommodation is a change to a rule or policy. The landlord pays no out-of-pocket cost; the cost is administrative. Connecticut follows the federal rule.
Reasonable-accommodation litigation rates correlate with overall tenant-protection enforcement. View landlord risk and tenant-law profile by city:
This page summarizes the reasonable accommodation and modification duties that apply to Connecticut rental housing under the federal Fair Housing Act (42 U.S.C. 3604(f)) and the Connecticut Fair Housing Act, Conn. Gen. Stat. 46a-64c, as enforced by the Connecticut Commission on Human Rights and Opportunities. Statutory citations, the tenant-pays modification rule and its restoration exception, the assistance-animal treatment, the accessible-design threshold for post-March 13, 1991 covered multifamily construction, and the 300-day CHRO filing deadline reflect the current statute and agency guidance as of 2026. It is general information for housing providers, not legal advice; confirm the current statutory text and consult a Connecticut attorney before denying a request or drafting a modification agreement.
In a privately financed rental, the tenant pays. Conn. Gen. Stat. 46a-64c(a)(6)(C)(i) requires you to permit the reasonable modification at the disabled person's expense. In federally funded housing under Section 504, the provider generally covers the cost unless it is an undue financial and administrative burden.
Sometimes. Where reasonable, 46a-64c(a)(6)(C)(i) lets you condition approval on the renter restoring the interior to its pre-modification condition, reasonable wear and tear excepted. You cannot require removal of a change that would not interfere with the next tenant's use of the unit.
No. A verified assistance animal is a reasonable accommodation, not a pet, so no-pet policies, breed and weight limits, pet deposits, pet rent, and pet fees do not apply. The tenant still remains responsible for any actual damage the animal causes.
If the disability or the disability-related need is not obvious, you may request reliable documentation that the person has a disability and needs the accommodation, usually a letter from a treating provider. You may not require the diagnosis, medical records, or detailed medical history.
You can deny a request that is not disability-related, that imposes an undue financial and administrative burden, that would fundamentally alter your operations, or where the specific person or animal poses a direct threat or would cause substantial damage that no lesser accommodation can address. Denying outright without offering an alternative is where most landlords get into trouble.
A formal housing discrimination complaint must be filed with the Connecticut Commission on Human Rights and Opportunities (CHRO) no later than 300 days after the alleged discriminatory act. The CHRO Housing Discrimination Unit can be reached at 860-541-3403 or 800-477-5737.
Federal authority: 42 U.S.C. § 3604(f); 28 C.F.R. § 36.302; HUD FHEO Notice 2020-01. State authority: C.G.S. § 46a-64c. Last updated July 14, 2026. For informational purposes only, not legal advice. Reasonable-accommodation determinations are highly fact-specific; consult a licensed Connecticut attorney before denying any request.
