2.4 ADA & Accessibility Requirements

Key Takeaways

  • The Americans with Disabilities Act (ADA) governs commercial property and public accommodations; the Fair Housing Act governs residential housing; New York's Human Rights Law reaches both with broader scope
  • FHA design-and-construction rules apply to covered multifamily buildings of 4+ units first occupied after March 13, 1991
  • Reasonable MODIFICATIONS are physical changes the tenant requests and usually pays for; the landlord must permit them but need not fund them
  • Reasonable ACCOMMODATIONS are changes to rules or policies the landlord must provide at its own cost, such as waiving a no-pet rule for an assistance animal
  • Service animals and emotional-support animals must be allowed with no pet deposit or pet rent; for an ESA a provider's letter may be requested, and breed/size limits do not apply to assistance animals
Last updated: June 2026

Three laws, three scopes

Disability questions on the New York exam turn on which law applies and who pays. Keep these three straight:

LawApplies toCore duty
Americans with Disabilities Act (ADA)Commercial property, public accommodationsPhysical accessibility
Fair Housing Act (FHA)Residential dwellingsNon-discrimination + accessible design
NY Human Rights Law (NYSHRL)Both residential and commercialBroadest coverage in New York

Disability is a protected class under all three. New York's law applies even to small dwellings that escape some federal design rules.

FHA new-construction standard

Covered multifamily buildings of 4 or more units that were first occupied after March 13, 1991 must be designed and built to be accessible. Seven federal design requirements include:

FeatureRequirement
Accessible building entranceOn an accessible route
Accessible common/public areasLobby, mailroom, laundry
Usable doorsWide enough for wheelchairs (32" nominal clear)
Accessible route into/through the unitNo abrupt level changes
Switches/outlets in reachAccessible heights
Reinforced bathroom wallsTo allow later grab-bar installation
Usable kitchens and bathsManeuvering space for wheelchairs

Trap: The 4-unit / 1991 trigger is for design and construction. The duties to allow modifications and provide accommodations apply to virtually all rental housing regardless of size or age.

Modifications vs. accommodations — the central distinction

Reasonable ModificationReasonable Accommodation
What it isA physical change to the unit/premisesA change to a rule, policy, or service
Who paysTenant pays (interior)Landlord pays/absorbs
ExampleInstalling grab bars, a ramp, lower countersWaiving a no-pet rule; assigning a close parking space
RestorationLandlord may require restoration of interior at move-out if reasonableNot applicable

Worked example: A wheelchair user asks to install a bathroom grab bar and to be assigned the parking spot nearest the door. The grab bar is a modification — the landlord must permit it but the tenant pays. The reserved spot is an accommodation — the landlord must provide it at no charge. Mixing up who funds which is the most common exam error here.

Assistance animals

Both service animals and emotional-support animals (ESAs) are treated as reasonable accommodations in housing, not pets.

TypeDefinitionDocumentation
Service animalDog trained to perform a task for a disabilityNone for obvious disabilities
Emotional-support animalProvides therapeutic comfort, no task trainingProvider's letter may be requested

Hard rules for assistance animals

RuleDetail
No pet deposit or pet rentA no-pet policy must be waived
No breed or size restrictionsThey do not apply to assistance animals
Limited inquiriesIf disability/need is not obvious, may ask only whether it is needed for a disability
Tenant liabilityOwner remains responsible for any actual damage the animal causes

ADA: commercial and public accommodations

The ADA requires that public accommodations — hotels, restaurants, theaters, retail stores, professional and real estate brokerage offices — be accessible. In existing buildings, barriers must be removed when doing so is "readily achievable" (easily accomplishable without much difficulty or expense); where removal is not readily achievable, an alternative method of providing the service must be offered. A broker's own office is a public accommodation and must comply.

Exam tip: Residential disability disputes are almost always FHA/NYSHRL questions (modifications, accommodations, animals). ADA questions usually involve a commercial or office setting and the "readily achievable" standard.

When a landlord may say no

The duty to accommodate is not unlimited. A request may be denied only if it would impose an undue financial or administrative burden or would fundamentally alter the nature of the housing. Cost alone rarely meets this bar for a typical accommodation. A landlord may also deny an assistance animal that poses a direct threat to others' safety or would cause substantial physical damage — but the judgment must rest on the individual animal's actual conduct, never on breed, size, or generalized fear.

Landlord defenseValid?
"It costs me a little extra"Usually not a valid denial
"This specific dog has bitten tenants"May justify denial (direct threat)
"Pit bulls are dangerous"Invalid — breed stereotype
"It fundamentally changes the property"Valid if truly fundamental

Interactive process and documentation

When a disability or its need is not obvious, the housing provider and tenant should engage in an interactive dialogue. The provider may request reliable documentation of the disability-related need (for example, a treating provider's letter for an emotional-support animal) but may not demand medical records, a diagnosis, or details of the condition.

Worked example: A blind tenant arrives with a guide dog. Because the disability and the need are obvious, the landlord may ask no questions and may charge no fee. Contrast a tenant requesting an ESA for depression: the disability is not obvious, so the landlord may request a provider's letter confirming the need — but still cannot charge a pet deposit or impose a breed limit.

Trap: A landlord who charges a "refundable pet deposit" for a service or support animal has already violated the law. There is no deposit, pet rent, or surcharge for assistance animals.

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Disability Accommodations Framework
Test Your Knowledge

A tenant with a disability wants to install bathroom grab bars. Under fair housing law, who is responsible for paying for this change?

A
B
C
D
Test Your Knowledge

A landlord enforces a strict no-pets policy. A tenant with an anxiety disorder has an emotional-support animal and provides a provider's letter. What must the landlord do?

A
B
C
D