NYC Warranty of Habitability: A Landlord's Guide to Rent Abatements, Defenses, and What a Breach Costs (2026)

On May 23, 2025, a Manhattan housing court judge decided One Arden Partners LP v. Butler, a nonpayment case over a rent-stabilized apartment in Inwood that shows how the NYC warranty of habitability works in practice. The owner proved the tenant owed $58,912.70 in back rent. Every dollar of it.

Then the court turned to the tenant's counterclaim. Rats, which by the fall of 2023 were "defecating on beds on a daily basis." A ceiling collapse that forced the tenant out for a week. Leaks and lead paint. A broken lock on the building's entrance door. The court priced each condition as a percentage of the rent, added them up, and subtracted $37,337.68.

The owner left with a judgment for $21,575.02, about 37 cents on the dollar.

The owner didn't lose on the rent. They lost on the record: HPD violations with dates on them, and testimony nobody rebutted. That is the way the warranty of habitability tends to reach a New York City landlord: not as a lawsuit out of nowhere, but as the tenant's answer to your own rent case.

The warranty of habitability is a promise New York writes into every residential lease, written or oral: the apartment and the building's common areas must be fit to live in, and tenants can't be exposed to conditions that endanger their life, health or safety. It comes from Real Property Law §235-b, no lease can waive it, and a breach is paid for in rent.

This guide covers what the law requires, how courts put a price on a breach, the second track that applies to rent-stabilized apartments, the defenses that hold up, and the system that keeps repair problems from becoming rent problems.

NYC Warranty of Habitability at a Glance

The statute itself is short. These are the rules that matter to an owner, and where each one is written.

What Real Property Law §235-b Actually Says

Real Property Law §235-b, enacted in 1975, creates what courts call the implied warranty of habitability: three promises built into every residential lease in New York. The premises must be fit for human habitation, fit for the uses the parties reasonably intended, and free of conditions that are "dangerous, hazardous or detrimental" to the occupants' life, health or safety. The promise covers common areas, and tenants can't sign it away.

The statute's wording does a lot of work. It reaches "all areas used in connection therewith in common with other tenants or residents," which means the lobby, the hallways, the boiler, the roof and the laundry room. It applies to "every written or oral lease," so a tenant doesn't need a signed lease to rely on it. And it excludes conditions "caused by the misconduct of the tenant or lessee or persons under his direction or control," which reaches the tenant's household and guests.

The warranty is one piece of a larger body of NYC landlord-tenant law, and it has limits. It applies only to residential leases; a commercial tenant can't invoke it (Disunno v. WRH Properties, LLC, 97 A.D.3d 780 (2d Dept. 2012)). And despite what some guides say, the 2019 Housing Stability and Tenant Protection Act did not amend §235-b. It changed the retaliation statute, which comes up below.

What "Habitable" Means in NYC

In Park West Management Corp. v. Mitchell (1979), the Court of Appeals set the test: a breach occurs if, "in the eyes of a reasonable person, defects in the dwelling deprive the tenant of those essential functions which a residence is expected to provide." The standard is objective, and it is a floor, not a measure of what a high rent seems to promise.

That decision gave owners real protection. A landlord, the Court said, "is not a guarantor of every amenity," and a code violation that is "de minimis or has no impact upon habitability" does not automatically breach the warranty. In Solow v. Wellner (1995), tenants of an Upper East Side high-rise argued that luxury rents raised the bar. The Court of Appeals disagreed: the warranty is a minimum standard, whatever the rent.

The same decision closed some doors, too. Conditions "occasioned by ordinary deterioration, work stoppages by employees, acts of third parties or natural disaster" are all within the warranty. An aging boiler, a leak from a neighbor's apartment, storm damage: none of these is a defense on its own.

In practice, the yardstick is the NYC Housing Maintenance Code, which HPD enforces. Park West held that a substantial violation of a housing code is prima facie evidence of a breach. Typical examples:

• Vermin: rats, mice, roaches and bedbugs
• Water: leaks, water damage and mold
• Lead-based paint hazards
• Security: broken apartment locks and entrance doors
• Utilities: loss of gas, electricity or water
• Elevators in a high-rise, which the courts in Solow treated as an essential service

Heat and hot water have their own rules. Heat season runs October 1 through May 31: at least 68°F between 6 a.m. and 10 p.m. when it's below 55°F outside, and at least 62°F overnight regardless of the outside temperature. Hot water must reach 120°F year-round. HPD logged 344,437 heat complaints in the 2025–26 heat season, up from 282,606 the season before. Our guide to HPD violations covers how HPD inspects and classifies them. Building code, permit and structural problems are a separate system, enforced by the Department of Buildings; DOB violations work differently.

How a Rent Case Becomes a Repair Case

A tenant who withholds rent over repairs is making a bet: that when you sue for the rent, the court will find a breach of the warranty and cut what they owe. That question gets decided inside your own nonpayment case, largely on the record HPD has already built.

Here is how it unfolds:

1. The tenant stops paying, and you file. You start a nonpayment proceeding, the first step of the eviction process.
2. The tenant answers with a breach of warranty of habitability counterclaim. In a study of 2016 NYC nonpayment cases where the tenant appeared, tenants said in their Answer that repairs were needed in half of them (Nicole Summers, The Limits of Good Law, 87 U. Chi. L. Rev. 145).
3. HPD's file comes into evidence. Under Multiple Dwelling Law §328(3), HPD's violation records are prima facie evidence in Housing Court, and the court takes judicial notice of them.
4. The court can stay your case. Under RPAPL §755, if the tenant deposits the rent with the court, the judge may put the case on hold until the conditions are fixed, and you carry the burden of disproving the conditions described in HPD's notice or order.
5. Rent-impairing violations can bar the rent entirely. If a rent-impairing violation is still on HPD's record six months after the department mails you notice, Multiple Dwelling Law §302-a says "no rent shall be recovered" for the affected apartment while it remains uncorrected. If the condition is in a common area, the law treats it as existing in every resident's apartment. The tenant has to deposit the rent with the court to use this defense.
6. Hazardous violations block a use-and-occupancy order. RPAPL §745 lets a court order a tenant to pay ongoing rent into court while a case drags on, but not where the tenant shows hazardous or immediately hazardous violations in the apartment or the common areas.

Here's what that looks like in practice. In Mackay Properties LLC v. Hernandez (Civ. Ct., Kings County, Aug. 24, 2026), HPD's records showed 34 open violations, including a Class C for rats. The court stayed the nonpayment case until the violations are corrected and barred the owner from starting a new nonpayment case while the stay is in place.

An older number can look reassuring. In the same 2016 study, abatements were awarded in only 1.75% of all nonpayment cases, averaging $1,955. But the study's sharper finding was about lawyers: tenants with counsel and documented repair problems won abatements about 27% of the time, against almost never without one. Since then, the city's right-to-counsel program has changed who walks in with a lawyer. From April through June 2025, 44% of tenants who appeared in NYC eviction cases had full legal representation, up from 30% when the program launched in 2017 (NYC Office of Civil Justice).

That's five statutes in a single rent case. Which way it goes depends on a record that was built long before anyone walked into court.

How Courts Calculate a Rent Abatement

Courts use the measure the Court of Appeals set in Park West: "the difference between the fair market value of the premises if they had been as warranted, as measured by the rent reserved under the lease, and the value of the premises during the period of the breach." In practice, that becomes a percentage of the rent, condition by condition, for the months each condition lasted.

The court weighs how severe each condition was, how long it lasted and what the landlord did about it. In Park West itself, a 17-day strike by building workers in May 1976 left uncollected trash at Park West Village on the Upper West Side piled "to the height of the first floor windows." The award was 10% off one month's rent, and the Court of Appeals pointed to the owner's "feeble attempts" to deal with the danger.

Here is how One Arden added up:

Three things in that table matter more than the total. First, the percentages stack: from March through December 2024, the rent was cut by 60%, 15% and 7% at once. Second, the 100% abatement covered only the one week the apartment couldn't be lived in, with the rent converted to a daily rate (monthly rent × 12 ÷ 365). Third, the conditions with no HPD violations got nothing: "the dates of the conditions were not clear," and there were no HPD violations to pin them down.

Full abatements are the exception. Courts generally won't refund all the rent for months a tenant actually lived in the apartment. In Mateo v. Anokwuru (App. Term, 1st Dept. 2017), a trial court ordered an individual owner to refund about 35 months of rent; the Appellate Term reversed, because the tenant had "received the benefit of shelter." Full abatements are generally reserved for the worst periods, like the week in One Arden when the apartment couldn't be lived in.

Outcomes vary with the evidence:

Constructive Eviction

Constructive eviction is a different doctrine. It applies when the landlord's wrongful acts "substantially and materially deprive the tenant of the beneficial use and enjoyment" of the premises, and the tenant has to actually leave, all or part of the space (Barash v. Pennsylvania Terminal Real Estate Corp., 1970; Minjak Co. v. Randolph, 1st Dept. 1988). It is raised as a defense to rent for the abandoned space. Under §235-b, by contrast, the tenant stays and the rent is reduced in proportion to the breach.

Fees and Punitive Damages

Two more costs can attach. If your lease lets you recover attorney's fees, Real Property Law §234 gives the tenant the same right, so a tenant who wins the habitability fight in your nonpayment case can collect their fees from you; the same two-way rule applies in security deposit disputes. In Minjak, the tenants collected $5,000 in fees. Punitive damages require conduct that is "intentional and malicious," and the bar is high: Minjak sustained $5,000 where the landlord ran dangerous construction around occupied units and ignored the tenants' repeated complaints.

Rent-Stabilized Units: The DHCR Track

A rent-stabilized tenant has a second route that never goes through Housing Court. They can file a decreased-services complaint with the state's Division of Housing and Community Renewal (DHCR). If DHCR finds you failed to maintain required services, it reduces the rent and bars every further increase until it restores the rent.

The mechanics, from DHCR's own fact sheets:

• The reduction. The rent drops to the level in effect before the most recent guideline increase, retroactive to the first of the month after DHCR serves you with the complaint (HCR Fact Sheet #14).
• The freeze. No further increases until DHCR restores the rent. Since November 8, 2023, that includes MCI and IAI increases, and any MCI or IAI increase collected after the order's effective date must be refunded (HCR Fact Sheet #35).
• The exit. A rent restoration order, which DHCR won't issue until every service listed in the order is restored. One unresolved item keeps the whole freeze in place.
• The offset. Section 235-b(3)(c) and Rent Stabilization Code §2523.4(h) keep a tenant from collecting twice for the same condition. Nothing offsets the freeze.

For a stabilized building, the DHCR order can cost more than the court abatement, because the freeze blocks every renewal increase until the last listed item is fixed. Violations also block increases on their own: DHCR won't grant a major capital improvement increase while hazardous or immediately hazardous violations are outstanding in the building, and an owner can't begin collecting an individual apartment improvement increase while such violations are pending against the apartment. Rent-controlled apartments follow a different version of these rules; our guide to rent-stabilized vs. rent-controlled apartments explains the two systems.

The Rest of the Bill: HPD Penalties, Emergency Repairs, and Retaliation

An abatement is what the tenant collects. The City collects separately. These are HPD's civil penalties for violations issued on or after December 8, 2023, when Local Law 71 raised them:

Source: HPD, Penalties and Fees.

If a Class C condition isn't corrected, HPD's Emergency Repair Program can send its own contractor and bill you. Our analysis of HPD's invoice data for fiscal year 2026 found an administrative fee of about half the contractor's cost on nearly every bill, capped at $25,000, plus sales tax: a $2,000 repair becomes a charge of roughly $3,178. HPD sent $63.8 million of these charges to the Department of Finance that year. Left unpaid, a charge becomes a tax lien that takes priority over your mortgage and accrues interest at 7% a year or more (NYC Administrative Code §27-2144).

Tenants can also bring an HP action, a Housing Court case asking the court to order repairs. The result is an order to correct and civil penalties paid to the City, not a rent abatement. Our analysis of HPD's litigation data counts 7,557 tenant HP actions filed citywide in 2025. Where conditions are severe, a third of a building's tenants can ask the court to appoint a 7A administrator, who collects the rents and uses them to make repairs.

Then there's timing. Under Real Property Law §223-b, a good-faith complaint about conditions, made to you or to a government agency, starts a one-year presumption of retaliation, and so does an inspection made because of that complaint. Serve a notice to quit, start an eviction case, refuse to renew, or offer a renewal with an unreasonable increase inside that year, and you have to prove a non-retaliatory reason by a preponderance of the evidence. Owner-occupied buildings with fewer than four units are exempt.

Defenses That Hold Up

Owners win habitability fights on evidence. The defenses that work come down to four questions: Did you know about the condition? Did the tenant let you in to fix it? Who caused it? And how fast did you act?

No notice. In Moskowitz v. Jorden (1st Dept. 2006), the court dismissed a habitability defense "in the absence of notice of the defective conditions claimed." The notice has to be of the particular condition; knowing about other tenants' complaints wasn't enough. But notice doesn't have to be in writing, and notice to your super is notice to you. In Jangla Realty Co. v. Gravagna (Civ. Ct., Queens County, 1981), a tenant told the live-in super about a broken entry-door lock in the evening, and the court found that by the next day, about 18 hours later, the landlord had had "ample and reasonable opportunity" to fix it.

Refused access. In Callender v. Titus (App. Term, 2d Dept. 2004), a tenant who never gave the landlord access to make repairs before moving out was not entitled to an abatement. Refused entry is also a defense under §302-a, and under Good Cause Eviction, a tenant who "unreasonably refused" access for legally required repairs has given you grounds to evict.

Tenant-caused. The statute excludes conditions caused by the tenant's misconduct, and Multiple Dwelling Law §78 makes a tenant liable for violations caused by their own "wilful act, assistance or negligence," or their household's or guests'. Misconduct means causing the condition. As Fraley showed, breaking a promise to fix it doesn't count.

Fixed in a reasonable time. What the landlord did about a condition is part of the Park West measure. And §302-a's defense covers conditions that were actually corrected, even if the violation hasn't yet come off HPD's record.

De minimis conditions. Park West holds that trivial code violations aren't automatically a breach, and DHCR publishes a list of conditions that generally don't count as a failure to maintain services, including hairline cracks, isolated peeling paint with no active leak, and noise from another tenant.

Labor disputes. Section 235-b(3)(b) excludes damages caused by a strike or labor dispute you didn't primarily cause, as long as you made a good-faith attempt to cure.

The record itself. In 712 Realty, the tenant's "vague testimony" lost to the landlord's photographs and "a business record containing notations of completed repairs." In Sammy Group, a claimed two-week loss of hot water got nothing: there was no violation, and the landlord's emails never mentioned it. Evidence cuts both ways.

Every one of these defenses is a document: a time-stamped request, a written request for access, a photo of the finished repair, a certification filed with HPD. Owners who have them have something to win with. Owners who don't end up arguing from memory.

Prevention: Build the Record Before You Need It

The cheapest habitability claim is the one that never gets started. The system that prevents claims is the same one that wins them:

1. One intake channel that everyone can see. Tenant, owner, manager and super. Requests made in the hallway or texted to the super still count as notice, so they need to land somewhere they're recorded.
2. A time-stamped history of every step. The request, the scheduling, any written request for access, the completion and the photos.
3. A response clock set by the legal clock. Most Class C conditions carry a 24-hour correction period. Heat and hot water violations carry none.
4. Certify every correction to HPD. Open violations are evidence against you, and HPD checks: its Certification Watchlist named 100 buildings in January 2025 and another 100 in February 2026 where corrections had been falsely certified.
5. Seasonal work before it's urgent. Service the boiler before October 1. In buildings with steam heat, Local Law 151 of 2025 requires radiator inspections every two years in common areas and in apartments where a child under six lives, with annual tenant notices starting in January 2027.
6. Fix at turnover. A vacant apartment has no access problem, and it's the one time you can repair everything on your own schedule. If you're re-leasing, our FARE Act guide covers who pays the broker under that law.

This is how we run the buildings we manage. Every request goes through one automated maintenance portal that tenants, the owner, the manager and the super all use, and it keeps the time-stamped history: requests, scheduling messages, completion notes and photos. We respond to every request within 24 hours and complete work within 48 to 72 hours, faster for emergencies. And we certify HPD violation corrections ourselves, rather than leaving a fixed condition on HPD's record as an open violation.

That record matters especially in pre-war buildings with steam heat and original plumbing, which are common across the Upper West Side, the Upper East Side and the East Village. It is the same kind of evidence that won 712 Realty: photographs and a business record of completed repairs. If you'd rather have that system running on your building than build it yourself, that's what our property management service does.

Frequently Asked Questions

The Bottom Line

The warranty of habitability is one short statute, but it reaches you through your own rent case, with HPD's records as the evidence and a percentage of the rent as the price. On a rent-stabilized apartment, a DHCR order can freeze the rent on top of it. Owners with a clean record, where every request is logged, every repair documented and every violation certified, are in a position to win these cases, or never face them. Owners without one find out in court what each condition was worth. If you're not sure which side of that line your building is on, the open violations on HPD's record are the place to start.