What Changes at the New York City Line When You Have Mold

No. One state law covers both sides of the line, and inside the city two more layers stack on top of it: an annual inspection duty at three or more dwelling units, and at ten or more a rule that bars the owner's own staff from doing the work and adds two filings to the city. Cross into Yonkers, Mount Vernon, Pelham or New Rochelle and both of those disappear.

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The layer that follows you across the border

Article 32 of the state Labor Law is the one constant. Anywhere in New York, a mold project means work on an area greater than ten square feet, and above that line the job needs a licensed assessor and a separate licensed remediator. That is as true on Mount Vernon Avenue as it is on the Grand Concourse. What is not constant is everything layered on top of it, and the layers are what decide who may hold the tools, what has to be filed and how fast the clock runs. Get the address and the unit count straight before anyone quotes you anything, because those two numbers select your rulebook.

Inside the city, three dwelling units is the first threshold

Local Law 55 of 2018 applies to owners of buildings with three or more units, and it is not a complaints-only duty. The owner has to inspect every unit annually for indoor allergen hazards including mold, respond to tenant and city complaints, make sure a vacant apartment is cleaned and free of mold before a new tenant moves in, and hand every tenant a notice and a health department fact sheet with the lease. A six family walk-up in Fordham is squarely inside it. Nothing equivalent exists a mile north in Yonkers.

A tenant with asthma changes the threshold to any size at all

The city health department states that owners of buildings with three or more apartments, and owners of buildings of any size where a tenant has been diagnosed with moderate or severe persistent asthma, are required to keep tenants' homes clear of mold, including safely repairing underlying problems such as water leaks. That second half catches the two family house that thought it was exempt. If you own a small Bronx rental and a tenant has produced that diagnosis, the unit count stops protecting you and the obligation attaches to the building you have.

What the city says a compliant cleanup looks like

The rule behind Local Law 55 is unusually specific, and it is the clearest checklist a tenant or an owner can hold a crew to. It counts mold inside a wall cavity as a hazard, names defective masonry pointing and water infiltration from plumbing as underlying defects, and then lists the work practices: correct the underlying defect first, cover or remove furniture, isolate the work area with plastic sheeting and seal the ventilation ducts, mist surfaces before removal or use HEPA vacuum shrouded tools, clean with soap or detergent and water, discard what cannot be cleaned into sealed heavy weight bags, HEPA vacuum or wet clean the remaining dust, and leave the area dry and visibly free of mold. Work done without containment, or done without fixing the water first, is not compliant work whatever the invoice says.

At ten dwelling units, the owner is out of the job entirely

Administrative Code section 24-154, added by Local Law 61 of 2018, defines a covered building as one with ten or more dwelling units, or one on a zoning lot with 25,000 or more square feet of non-residential floor area. In a covered building no covered person, meaning the owner, the managing agent or an employee of either, may perform the assessment, abatement or remediation on an area greater than ten square feet. It has to be a person licensed under Article 32. For a managing agent with maintenance staff, that is the rule that most often gets broken by accident: the super has always handled it, and in this building he may not. Buildings owned or operated by the New York City Housing Authority are outside section 24-154 and run their own program.

The two filings a covered city building produces

Section 24-154 also puts paper on the job. The licensed remediator files a notice with the administering agency, including the mold remediation work plan, no later than two business days before work starts, and the licensed assessor files the post remediation assessment within seven days of finishing it. Where the condition poses an immediate risk of harm, or the work is under a court order of 30 days or less, the filing may instead be made within 24 hours of starting. The agency publishes the information online within 24 hours of receiving it. Build those dates into the schedule at the start, because a crew that turns up ready to work tomorrow on a job that was not filed today has a problem that costs a week.

Across the line in Yonkers, Mount Vernon, Pelham and New Rochelle

Both city layers stop at the border. In a Bronx building of ten or more units the owner, the managing agent and their employees are barred from doing mold work over ten square feet and an Article 32 licensee is required. In Yonkers, Mount Vernon, New Rochelle and Pelham no equivalent local law applies, so the state exemption in Labor Law section 933 stands and the same landlord's own staff may lawfully do the same job. Rental housing there runs under the state Multiple Residence Law, which applies to cities under 325,000 people and to all towns and villages, rather than under the city Housing Maintenance Code, and enforcement is the local building department rather than a city housing agency.

One rule that runs the other way: the Westchester flood disclosure

The traffic is not all one direction. Under Chapter 581 of the Laws of Westchester County, a landlord must give every prospective tenant of a residential or commercial leasehold or sublet a completed Flood History Disclosure Form: the FIRM panel and flood zone, whether the property sits in a special flood hazard area, whether it has flooded in the past ten years, a description of those events including roughly how high the water reached, and what the owner has done to reduce the risk. The city has no equivalent. So a Yonkers landlord owes a prospective tenant a ten year flood history that a Bronx landlord does not, and if you own on both sides you are running two different disclosure regimes out of the same office.

If you rent, this is the layer that matters to you

Real Property Law section 235-b warrants that residential premises are fit for human habitation and that occupants are not subjected to conditions dangerous, hazardous or detrimental to their life, health or safety, and it covers the shared common areas as well as your own apartment. That warranty applies on both sides of the city line. Inside the city, a complaint brings a housing inspector, and mold found in the apartment is recorded as a violation against the owner rather than against you. That route is free to you and it is the right one to use. We work for whoever is paying for the work, which in a rental is almost always the owner, so if you are a tenant the honest answer is that your first call is to the city and not to us.

Working out which set applies to your address

Three questions settle it. Which side of the city line is the building on, how many dwelling units does it contain, and is the affected area bigger than ten square feet. A Bronx six family is under Article 32 and Local Law 55. A Bronx twelve family is under all three layers and has filings to make. The identical twelve family in Mount Vernon is under Article 32 alone. Tell us the address and the unit count and we will tell you which one you are in and what the sequence looks like before anyone visits.