To find out if your NYC apartment is rent stabilized, start with two questions about the building and then confirm with a free rent history from the state. Most stabilized apartments sit in buildings put up before January 1, 1974 that contain six or more residential units, but newer buildings can also be covered through tax incentive programs. The definitive answer for your specific unit comes from the New York State Division of Housing and Community Renewal (DHCR), which keeps a registered rent history for every stabilized apartment in the city.
The Basic Rule: Pre-1974 Buildings With Six or More Units
The Rent Stabilization Law of 1969 and the Emergency Tenant Protection Act of 1974 together cover buildings constructed before January 1, 1974 that hold six or more residential units.1Fordham Urban Law Journal. Emergency Tenant Protection in New York: Ten Years of Rent Stabilization If your building fits both criteria, the odds are strong that your apartment is stabilized.
Small buildings sometimes still qualify. Clusters of adjacent structures under common ownership or sharing heating systems or structural elements can be treated as a single property. When the combined unit count across those connected buildings reaches six, the whole complex is typically covered. If you live in a four-unit building attached to another small building next door, count the units across the full tax lot, not just your address.
Newer Buildings That Are Still Stabilized
Age is not the only route in. Buildings built after 1974 can be rent stabilized if the owner takes a tax break that requires it.
421-a
The 421-a program gave developers property tax exemptions on new construction in exchange for stabilizing the units. Market-rate rentals in a 421-a building are stabilized for the length of the tax benefit, and affordable units are stabilized for 35 years.2NYC Housing Preservation & Development. 421-a Benefit periods generally run 10 to 25 years after construction, depending on location and affordability tier.
A 421-a lease must include a rider stating the approximate date the tax benefits expire, and the tenant must sign it.3Cornell Law School. N.Y. Comp. Codes R. and Regs. Tit. 9 2522.5 – Lease Agreements When that rider is missing, a landlord may have trouble taking the unit out of stabilization after the benefit ends.
485-x
The 421-a program has closed to new projects. Its 2024 replacement, 485-x (Affordable Neighborhoods for New Yorkers), requires that all affordable units be permanently rent stabilized, and projects that select certain options must stabilize at least half of their units.4NYC Housing Preservation & Development. 485-x: Affordable Neighborhoods for New Yorkers Buildings that started construction between June 15, 2022 and June 15, 2034 are eligible.
J-51
J-51 applies to residential buildings that undergo major renovations, such as boiler, roof, or plumbing replacement. The owner gets a property tax exemption and abatement, and units in the building must be registered as rent stabilized for the life of the benefit.5Homes and Community Renewal. Fact Sheet 41: Tax Abatements That is why a building put up in 2010 or renovated in 2020 can still be legally regulated today.
Request Your Rent History From DHCR
The most reliable way to confirm your apartment’s status is to request your official rent history from DHCR. The document lists every registered rent and lease type on file for your unit, going back decades. If the apartment shows up in this record, it is or has been rent stabilized.
Download form REC-1 from the DHCR website. You will need the full building address, including borough and zip code, and your specific apartment number. Without the exact unit designation, DHCR cannot return unit-level records. Submit the form by email to ORArecords@hcr.ny.gov or by mail to the Office of Rent Administration’s Records Access Unit in Jamaica, Queens.6Homes and Community Renewal. Records Access Attaching a copy of your lease or a utility bill as proof of residency helps avoid delays.
DHCR must acknowledge the request within five business days and provide an estimated timeline.7Homes and Community Renewal. Freedom of Information Law Requests and Office of Rent Administration Requests for Records The completed rent history is typically delivered by mail to the apartment address on file, which is a security measure meant to prevent unauthorized access. Plan for several weeks.
Faster Checks You Can Do Today
While the rent history is in the mail, three free databases can give you a strong hint about your building’s status.
HPD Online
The NYC Department of Housing Preservation and Development runs a portal called HPD Online where you can look up building registration, complaints, violations, and property information.8NYC Housing Preservation & Development. HPD Online Check the property registration tab for the total number of residential units and whether the building is registered as a multiple dwelling. Six or more units in a pre-1974 building is a strong signal.
ACRIS
The NYC Department of Finance’s Automated City Register Information System (ACRIS) holds recorded property documents for Manhattan, Queens, the Bronx, and Brooklyn going back to 1966.9NYC Department of Finance. ACRIS Search by Borough, Block, and Lot and look for documents tied to 421-a, 485-x, or J-51 abatements. These often appear as memoranda or restrictive declarations and confirm that the building entered a tax program requiring stabilization.
DHCR Rent Registration
Landlords of rent-stabilized buildings must file annual rent registrations with DHCR by July 31 each year. Owners who fail to register face a fine of $500 per unregistered unit for each month the registration is late, and while unregistered, they cannot lawfully collect rent increases.10Homes and Community Renewal. Rent Registration The absence of a DHCR registration does not automatically mean your unit is unregulated. It can also mean the landlord is out of compliance.
Reading the Rent History
When the rent history arrives, you will see the registered legal rent for each year, the type of lease (vacancy or renewal), and any Individual Apartment Improvement (IAI) increases the landlord claimed. Compare the legal rent for your current lease period against what you actually pay. If you pay more than the registered legal rent, you may have an overcharge.
Two figures sometimes appear side by side: a “legal regulated rent” and a lower “preferential rent.” A preferential rent is a discount the landlord voluntarily offered below the legal maximum. Under the 2019 Housing Stability and Tenant Protection Act, if you were paying a preferential rent on or after June 14, 2019, the landlord must continue charging that preferential rent, adjusted only by the annual Rent Guidelines Board percentages, for as long as you stay in the apartment.11Homes and Community Renewal. Fact Sheet 40: Preferential Rents The landlord can only revert to the full legal rent after you permanently vacate.
IAI entries reflect renovations to the unit that let the landlord raise the legal rent. These increases must be filed with DHCR and, for occupied apartments, require the tenant’s written consent. If the paperwork is missing, an IAI increase can be challenged.12Homes and Community Renewal. Guide to Rent Increases for Rent Stabilized Apartments
Deregulation No Longer Applies Going Forward
Before June 2019, landlords had two main routes to permanently remove an apartment from rent stabilization. One was high-rent vacancy decontrol, which let a landlord deregulate a vacant unit once its rent crossed a dollar threshold (last set at $2,774.76). The other was high-rent/high-income deregulation, which allowed a petition to deregulate when the rent exceeded a threshold and the tenant’s household income exceeded a set amount.
The Housing Stability and Tenant Protection Act of 2019 eliminated both pathways.13Homes and Community Renewal. Rent Regulation Terms A stabilized apartment now stays stabilized regardless of how high the rent climbs or how much the tenant earns, with a narrow exception for certain 421-a(16) apartments.14Mayor’s Office to Protect Tenants. Protections for Rent-Regulated Tenants This matters when you check your status: apartments that were improperly deregulated before 2019 may still legally be stabilized, and the rent history is where you would spot the break in the record.
If the Numbers Do Not Add Up
When your rent history and your lease disagree, you can file an overcharge complaint with DHCR’s Office of Rent Administration. For rent-stabilized apartments, use forms RA-89 and RA-89.1, or file through DHCR’s Rent Connect portal.15Homes and Community Renewal. Rent Increases and Rent Overcharge Overcharge complaints generally use a four-year lookback, though landlords must now keep rent records for the full tenancy plus six years prior, giving DHCR broader context. A willful overcharge carries a penalty of three times the amount collected. If the landlord shows the overcharge was not intentional, the penalty is limited to the actual excess.