New York City regulates residential landlords more heavily than almost anywhere else in the country, and the rules come from a stack of overlapping sources: the state's warranty of habitability, the NYC Housing Maintenance Code, rent-stabilization law, Fair Housing statutes, and a growing list of local laws. Understanding your core obligations isn't just about avoiding fines — it's the foundation of running a building that keeps good tenants, holds its value, and stays out of housing court.
This guide walks through what NYC landlords are legally required to do, who enforces each obligation, and where the common traps are. It's written for owners of small-to-midsize residential buildings — the kind we manage every day across Brooklyn.
This is general information, not legal advice. NYC landlord-tenant law is detailed and changes often. Consult a qualified attorney about your specific building and situation.
The warranty of habitability: the baseline duty
Every residential lease in New York includes an implied warranty of habitability, whether or not it's written into the document. In plain terms, it means the landlord must keep the apartment livable, safe, and fit for its intended use.
That covers the essentials tenants rely on:
- Working heat and hot water
- Functioning plumbing, electricity, and gas
- A structure free from serious hazards
- Freedom from pest infestations (rodents, roaches, bed bugs)
- No dangerous conditions like exposed wiring, mold, or lead hazards
When a landlord fails to maintain these conditions, a tenant may be entitled to a rent reduction, may make repairs and deduct the cost in limited circumstances, or may raise the failure as a defense in a nonpayment case. The warranty of habitability can't be waived by a lease clause — a "as-is" provision won't override it.
Heat and hot water requirements
Heat is one of the most enforced obligations in the city. During heat season — October 1 through May 31 — landlords must maintain minimum indoor temperatures whenever outdoor temperatures fall below a set threshold. Hot water must be supplied year-round at a minimum temperature.
Heat and hot water complaints are among the most common calls to 311 and generate a large share of HPD violations each winter. Deferred boiler maintenance is a false economy: a single cold snap can produce multiple violations, tenant rent-reduction claims, and emergency repair costs all at once. We cover the specifics in our NYC heat and hot water requirements guide, and reliable maintenance and emergency response is exactly the kind of thing that keeps small problems from becoming legal ones.
Registering with HPD
If you own a residential building with three or more units, or a one-to-two-family home where neither you nor an immediate family member lives, you must register the property annually with the Department of Housing Preservation and Development (HPD).
Registration isn't a formality. Without a valid, current HPD registration, a landlord generally cannot collect rent through housing court and can't pursue certain proceedings against a tenant. It also affects how the city communicates violations and notices to you. Register first, keep it current every year, and update it whenever ownership or managing-agent information changes. Our HPD registration guide walks through the process step by step.
Health and safety devices
NYC landlords are responsible for installing and maintaining a specific set of safety devices, including:
- Smoke detectors and carbon-monoxide detectors in required locations
- Window guards in apartments where a child ten or younger lives (and an annual notice asking whether one does)
- Stove knob covers on request in units with young children
- Self-closing entrance doors and other building-wide safety features
- Bed-bug disclosure — an annual filing reporting the building's bed-bug history
Buildings constructed before 1960 carry additional lead-paint obligations where young children live, including inspection, disclosure, and remediation duties. Getting these disclosures right matters — see our lead paint disclosure guide for the details.
Fair Housing and source-of-income protection
New York City has some of the broadest anti-discrimination protections in the country. Landlords cannot refuse to rent, set different terms, or treat tenants differently based on a protected class — which under city law includes race, national origin, religion, disability, familial status, gender, sexual orientation, and more.
Critically, NYC also prohibits source-of-income discrimination. That means a landlord generally cannot reject an applicant simply because they intend to pay with a housing voucher (such as CityFHEPS or Section 8), Social Security, or another lawful subsidy. Refusing "no vouchers" or advertising that way is unlawful.
The safest approach is to apply the same objective screening standards to every applicant and document your process consistently. Enforcement runs through the NYC Commission on Human Rights as well as state and federal agencies, and penalties can be significant. Our Fair Housing guide for NYC landlords breaks down what compliant screening looks like — and it's a core part of how we handle tenant placement and screening.
Security deposits
Under New York's Housing Stability and Tenant Protection Act of 2019 (HSTPA), residential security deposits are capped at one month's rent. Landlords must also:
- Return the deposit within 14 days of move-out, with an itemized statement of any deductions
- Offer a move-in inspection so the tenant can note pre-existing conditions
- Hold the deposit properly and account for it
Deductions are limited to actual damage beyond normal wear and tear, plus unpaid rent. Getting the mechanics wrong — a late return, no itemization, an oversized deposit — can expose a landlord to penalties.
Rent stabilization obligations
Roughly a million NYC apartments are rent-stabilized, and if you own stabilized units your obligations expand considerably. Stabilization can attach to a unit based on the building's size, age, and tax history (like J-51 or 421-a benefits) — not on what a prior owner told you. Confirm status with DHCR before setting a rent.
For stabilized units, landlords must:
- Charge no more than the legal regulated rent, with annual increases set by the Rent Guidelines Board
- Offer lease renewals on required terms
- Register rents annually with DHCR
- Provide required riders and notices
- Follow strict rules for IAI and MCI rent adjustments
Rent-stabilization compliance is genuinely specialized — mistakes can lead to overcharge claims and treble damages. It's the area where owners most often benefit from expert help, and it's a core specialty of ours. Our complete rent stabilization guide and rent increase rules explainer go deeper.
Leases, disclosures, and notice requirements
New York requires landlords to use a current, compliant lease and to give proper written notice for major changes. Get these mechanics right and most disputes never start:
- Renewal and non-renewal notice. For free-market units, if you intend to raise the rent by 5% or more, or decline to renew a tenant who has lived in the unit for a while, you must give advance written notice — 30, 60, or 90 days depending on the length of tenancy. Longer-term tenants get more notice.
- Required disclosures. Depending on the building, these include a lead-paint disclosure (for pre-1978 buildings), a sprinkler notice, the annual bed-bug filing, and window-guard and stove-knob-cover notices where children live.
- Rent stabilization riders. Stabilized leases require specific riders and renewal forms.
An outdated lease template is a genuine liability. When a clause conflicts with current law — say, an oversized deposit or a waiver of the warranty of habitability — the law wins, and the invalid clause can undercut your position in court.
Keeping records
NYC landlords aren't required to keep records in a single prescribed format, but in practice documentation is your protection. Keep the rent history, all tenant communications, repair requests and responses, inspection notes, HPD registration confirmations, and receipts. If a nonpayment case, an overcharge claim, or a habitability dispute ever reaches NYC Housing Court, your paperwork is your case. Good property-management software — we use AppFolio — makes this far easier and gives owners transparent, on-demand records.
What NYC landlords cannot do
Just as important as the affirmative duties are the hard prohibitions. A NYC landlord may not:
- Lock out or forcibly remove a tenant without a court order — self-help evictions are illegal
- Shut off essential services (heat, water, electricity) to pressure a tenant to leave
- Retaliate against a tenant for complaining to a government agency or exercising legal rights
- Discriminate based on a protected class or source of income
- Charge more than one month's rent as a security deposit
If a tenant needs to be removed, it must go through the formal NYC Housing Court process. We outline the lawful path in our eviction notice requirements guide, and the NYC landlord-tenant law overview ties the whole framework together.
Who enforces what — a quick map
| Obligation | Primary agency |
|---|---|
| Heat, hot water, repairs, housing conditions | HPD |
| Rent stabilization, overcharge, registration | DHCR / HCR |
| Structural, construction, building systems | Department of Buildings (DOB) |
| Discrimination complaints | NYC Commission on Human Rights |
| Evictions, nonpayment, disputes | NYC Housing Court |
Building-emissions rules under Local Law 97 add another compliance layer for larger buildings, and unresolved conditions often surface as HPD violations that carry escalating penalties.
Staying compliant without living in the code
Meeting every one of these obligations — consistently, across an entire building, year after year — is a real job. The owners we work with generally don't want to become part-time experts in the Housing Maintenance Code and rent-stabilization law. They want a manager who already is.
That's the heart of what Yak Management does. We handle HPD registration and inspections, keep heat and hot water running, screen tenants in a Fair Housing–compliant way, manage rent-stabilization filings, and keep meticulous records so that if a question ever reaches an agency or the courts, the paperwork is on your side.
If you'd like a candid read on where your building stands, schedule a property consultation or reach out. We'll tell you honestly what's required and where the risks are.
This article is general information, not legal advice. NYC landlord-tenant law is complex and changes frequently — consult a qualified attorney about your specific situation.