If you have mold in your NYC apartment, tenant rights under Local Law 55 of 2018 require your landlord to safely remove all visible mold and fix whatever is causing it, and if they refuse you can escalate through a 311 complaint, an HP Action in Housing Court, and a rent reduction claim, all while the law shields you from retaliation. The steps below walk through each option in the order most tenants use them.
What Your Landlord Is Required to Do
Local Law 55 of 2018, the Asthma-Free Housing Act, added Sections 27-2017.1 through 27-2017.12 to the NYC Administrative Code and treats mold as an “indoor allergen hazard.” Two duties matter most for a tenant dealing with an active problem.
First, under Section 27-2017.2, owners of multiple dwellings must investigate for mold in all occupied units and common areas at least once a year, and again whenever they know or should know about a condition that could cause mold or a tenant complains about one.1New York City Administrative Code. NYC Administrative Code 27-2017.2 – Owners Responsibility to Notify Occupants and to Investigate Your written complaint triggers that duty.
Second, Section 27-2017.1 requires owners to safely remove all visible mold and repair the underlying source.2New York City Administrative Code. NYC Administrative Code 27-2017.1 – Owners Responsibility to Remediate The source part matters. A landlord who wipes down a moldy wall but ignores the leak behind it has not complied. The work must also follow specific safety procedures, including containment with plastic sheeting, HEPA vacuum tools, misting surfaces before removal, and disposal in sealed heavy-duty bags. In buildings with ten or more units where HPD has issued a Class B or Class C violation, the landlord must hire both a New York State licensed mold assessment company and a licensed mold remediation company.3New York City Department of Housing Preservation and Development. Indoor Mold Hazard Work Practices
Mold exposure is not a cosmetic complaint. The CDC links it to coughing, wheezing, eye and skin irritation, worse asthma symptoms, and lung infections in people who are immunocompromised or have chronic lung disease.4Centers for Disease Control and Prevention. Mold That is why NYC classifies it as a housing code violation.
Notify Your Landlord in Writing and Document Everything
The moment you spot mold or a water leak, tell your landlord in writing. A text or email works as long as you keep the copy. Written notice does two things: it triggers the landlord’s duty to investigate under Section 27-2017.2, and it creates the paper trail you will need if this reaches HPD or a judge.1New York City Administrative Code. NYC Administrative Code 27-2017.2 – Owners Responsibility to Notify Occupants and to Investigate
Then document. Take clear, well-lit photos of every affected area and any related damage such as water stains, peeling paint, or warped surfaces. Note the exact location of each patch (“upper-left corner of bedroom ceiling,” “under bathroom sink”) and estimate its size. Keep a dated log of every conversation with the landlord or managing agent. This record is the backbone of any complaint or court case.
File a 311 Complaint With HPD
If your landlord ignores the notice or does a slapdash repair, file a complaint through NYC’s 311 system by phone, online, or through the 311 app. Report it as a housing maintenance issue.
After you file, HPD contacts the building’s managing agent to warn them that a violation may be issued if the condition is not corrected immediately. HPD will also try to call you back to check whether the problem was fixed. If it was not, or if HPD cannot reach you, a Code Enforcement inspector is sent to the apartment. The landlord is not told the inspection date in advance.5NYC311. Mold Complaint
When the inspector confirms mold, HPD classifies it as an immediately hazardous Class C violation. The landlord has 21 days from the notice to correct it before civil penalties start accruing, and if they fail to certify that repairs are complete on time the violation stays on the property’s public record.6New York City Department of Housing Preservation and Development. ABCs of Housing If no inspector shows up within a week, call HPD again and keep calling until an inspection occurs.
File an HP Action in Housing Court
When the 311 route does not produce results, you can bring an HP Action in NYC Housing Court. This proceeding exists specifically for tenants trying to force repairs, and the court has a dedicated HP Part that hears only cases brought by tenants or by the city to enforce repair obligations.7New York Courts. New York City Housing Court
You start by completing an Order to Show Cause and a Verified Petition, which the Housing Court clerk’s office provides.8New York Courts. HP Action Forms The filing fee is $45, and fee waivers are available for tenants who show financial hardship. Follow the clerk’s service instructions exactly. Improper service can get the case dismissed.
The court sets an inspection date and a hearing date. A housing inspector may be ordered to do a fresh inspection so the judge has current information. Many HP cases end in a consent order, a binding agreement in which the landlord commits to a specific repair timeline. Violate the order and the court can impose fines or hold the landlord in contempt. The court keeps jurisdiction until HPD certifies that all repairs are complete.
Get a Rent Reduction for Breach of the Warranty of Habitability
Every residential lease in New York, written or oral, includes an implied warranty of habitability under Real Property Law Section 235-b. The landlord warrants that the premises are fit for human habitation and that occupants will not be subjected to conditions dangerous, hazardous, or detrimental to their life, health, or safety.9New York State Senate. New York Real Property Law 235-B – Warranty of Habitability Mold that affects your health or makes part of the apartment unusable can breach this warranty. Any lease clause that tries to waive it is void as against public policy.
When a landlord breaches the warranty, a court can reduce your rent to reflect the diminished value of the apartment. Expert testimony is not required to calculate damages, which lowers the barrier for tenants.9New York State Senate. New York Real Property Law 235-B – Warranty of Habitability You can combine a rent abatement claim with an HP Action to seek both a repair order and financial recovery in the same case.
A Word on Withholding Rent
Some tenants consider withholding rent to pressure a landlord. It is legally risky. The landlord can file a nonpayment eviction case, and you will end up defending yourself in Housing Court. Before withholding, you should have clear written proof that you notified the landlord, gave a reasonable time for repairs (generally around 30 days), and documented the conditions with photos and inspection reports.
If you do withhold, save every dollar in a separate account. Depositing the money in escrow shows good faith and protects you if the court orders you to pay. A court that finds no breach, or that you skipped proper procedure, can order you to pay all back rent plus fees. This is a calculated decision, best made with legal advice.
Constructive Eviction as a Last Resort
In extreme cases where mold makes an apartment truly uninhabitable and the landlord refuses to act, you may have a claim for constructive eviction. This theory treats the landlord’s failure to maintain the property as the functional equivalent of evicting you. To succeed, you generally need to show that the landlord’s inaction substantially and permanently interfered with your ability to live in the apartment, and that you vacated within a reasonable time after the condition arose. If you stay while withholding rent, courts are less likely to find constructive eviction.
A successful claim lets you terminate the lease without further rent obligation and potentially recover damages. The bar is high. Minor mold in a bathroom corner will not qualify. Pervasive mold that triggers respiratory problems and persists after repeated complaints and HPD violations is the kind of situation where the argument becomes viable. Talk to an attorney before vacating. Walking out on a theory you cannot later prove in court leaves you on the hook for the remaining rent.
You Are Protected From Retaliation
New York Real Property Law Section 223-b prohibits landlords from retaliating against tenants who file good faith complaints about housing conditions. A landlord cannot serve you with an eviction notice, refuse to renew your lease, or substantially alter the terms of your tenancy because you complained about mold to the landlord, to HPD, or to any other governmental authority.10New York State Senate. New York Real Property Law 223-B – Retaliation by Landlord Against Tenant
If your landlord takes any of these actions within one year of your complaint, the law creates a rebuttable presumption that the action was retaliatory, shifting the burden to the landlord to prove a legitimate, non-retaliatory reason.10New York State Senate. New York Real Property Law 223-B – Retaliation by Landlord Against Tenant The protection also covers tenants who participate in tenant organization activities. Fear of retaliation is the most common reason tenants tolerate dangerous conditions instead of reporting them, and the statute is designed to remove that fear.