The New York City Zoning Resolution is the citywide law that divides all five boroughs into residential, commercial, and manufacturing districts, controls how large a building on any given lot can be, and restricts what activities can happen inside it. First adopted in 1961 and amended continuously since, the resolution was substantially rewritten between December 2023 and December 2024 through three City of Yes text amendments covering green infrastructure, commercial activity, and housing production. If you own, lease, or plan to develop property in the city, the resolution sets the outer limits of what you can legally do with it.
The Three District Types That Govern Your Lot
Every lot in the city sits in one of three base district categories: Residence (R), Commercial (C), or Manufacturing (M). The alphanumeric code tells you how intense development can be. Lower numbers mean lower density; higher numbers allow taller buildings and more units per lot.
Residence districts run from R1, which permits detached single-family homes on large lots, up through R10, which permits the tallest residential towers. The resolution also includes R11 and R12 designations, but those can only be mapped in Mandatory Inclusionary Housing areas where developers must include permanently affordable units.1NYC Zoning Resolution. NYC Zoning Resolution 21-14 Commercial districts (C1 through C8) cover everything from neighborhood retail to major office towers. Manufacturing districts (M1 through M3) range from light industrial through heavy manufacturing.
The district designation controls a building’s “bulk” — its overall size, height, setback from the street, and placement on the lot. A proposal that fits within the district’s bulk rules can be built as-of-right. One that exceeds them needs a variance or special permit.
Overlays and Special Districts
Base zoning isn’t the whole story. Many residential blocks carry a commercial overlay (designated C1-1 through C2-5) along busy corridors, allowing ground-floor retail and service businesses inside otherwise residential buildings. In C1 and C2 overlay areas, commercial activity from Use Groups VI through X is limited to the first two stories and cannot be located above any floor containing apartments.2NYC Zoning Resolution. Chapter 2 – Use Regulations The deli or dry cleaner on the ground floor of an apartment building is almost always sitting in a commercial overlay.
Dozens of special purpose districts also layer on top of the base zoning. The Special Midtown District sets different density limits for avenue frontages versus midblock sites and offers floor area bonuses for subway improvements or theater preservation. Special Mixed Use Districts pair manufacturing and residential zoning so housing, shops, and light industrial can coexist on the same block. The Special Coastal Risk District limits new construction in flood-vulnerable areas.3NYC Department of City Planning. Special Purpose Districts A lot zoned C6 inside the Special Midtown District does not have the same rules as a C6 lot elsewhere, so the base designation alone will mislead you.
Floor Area Ratio: The Number That Sets Your Project Size
The Floor Area Ratio is the single most important number in the resolution. Multiply the lot’s square footage by the FAR to get the maximum floor area you can build. A 10,000-square-foot lot with an FAR of 2.0 permits a 20,000-square-foot building. You can distribute that floor area across two full-lot floors, four half-lot floors, or any other arrangement that still fits the district’s height and setback rules.4NYC Zoning Resolution. NYC Zoning Resolution 23-20 – Floor Area Regulations
FAR varies dramatically by district. Low-density R1 and R2 districts cap FAR well below 1.0; high-density R10 and above can exceed 10.0. When a building mixes uses, each use has its own FAR cap, but the total combined FAR cannot exceed the highest FAR allowed for any single use on that lot.4NYC Zoning Resolution. NYC Zoning Resolution 23-20 – Floor Area Regulations
Use Groups: What You Can Do Inside the Building
The resolution controls activities through Use Groups that categorize nearly every residential, commercial, institutional, and industrial activity in the city. Before the 2024 City of Yes for Economic Opportunity amendments, there were 18 traditional Use Groups. The broad structure looked like this:
- Use Groups 1 and 2 cover residential uses, from single-family detached homes through large apartment buildings and affordable senior housing.5NYC Planning. Translation by Current Use Group
- Use Groups 3 and 4 cover community facilities: schools, colleges, libraries, hospitals, houses of worship.
- Use Groups 5 through 14 cover commercial activity from small neighborhood retail through hotels, offices, and entertainment venues.
- Use Groups 15 and 16 mix amusement and recreation (amusement parks, roller coasters, open-air attractions) with certain semi-industrial uses.
- Use Groups 17 and 18 cover heavy manufacturing and industrial operations.
Your district determines which Use Groups are allowed. A coffee shop (Use Group 6) operates fine in a C2 district but violates a straight residence district without a commercial overlay. A zoning violation here isn’t just a fine; it can mean lease termination and forced relocation of a business.
As-of-Right, ULURP, and the Board of Standards and Appeals
If your project meets every rule for your district, you can build as-of-right by filing for a building permit at the Department of Buildings. No public hearings, no City Planning Commission vote, no special permission.6NYC Department of City Planning. How Much Housing Is Built As-of-Right?
If your project needs a rezoning or a special permit, it goes through the Uniform Land Use Review Procedure, a roughly seven-month public review with five stages: certification by City Planning, 60 days at the local community board (advisory), 30 days with the Borough President, 60 days at the City Planning Commission (which votes to approve, modify, or deny), and 50 days at the City Council for the final vote on most applications.7NYC Department of City Planning. Public Review The Mayor has five days to veto a Council decision, and the Council can override with two-thirds. For projects involving affordable housing in a single borough, a Council disapproval can be reviewed by the Affordable Housing Appeals Board within 20 days.
Smaller deviations — a building that pushes slightly past a setback, or a use not permitted in the district — go to the Board of Standards and Appeals for a variance. BSA filing fees start at $1,100 for a one- or two-family home and run to $3,950 and up for commercial properties, scaling with square footage.8NYC Board of Standards and Appeals. BSA Filing Fees
What the City of Yes Amendments Changed
The City Council adopted three City of Yes text amendments between 2023 and 2024. All three are now law. Together they are the most significant rewrite of the zoning resolution since 1961.
Carbon Neutrality (December 2023)
The first amendment removed zoning barriers to green infrastructure. Rooftop solar panels, battery storage systems, and electric vehicle charging stations that had required special permits (or weren’t allowed at all in many districts) are now as-of-right in most areas.
Economic Opportunity (June 2024)
The second amendment modernized commercial zoning. It consolidated the traditional Use Group system into broader, more flexible categories so businesses can adapt without seeking fresh approvals each time they shift their model.9NYC Department of City Planning. City of Yes for Economic Opportunity It also allowed small-scale clean manufacturing — microbreweries, small-batch food production, fabrication shops — to operate in commercial corridors where they were previously banned.
Housing Opportunity (December 2024)
The third amendment is the broadest. It passed the City Council on December 5, 2024.10NYC City Council. File LU 0181-2024
The Universal Affordability Preference lets buildings in medium- and high-density districts add 20% to their FAR if the additional units are permanently affordable. Income restrictions require a weighted average at or below 60% of Area Median Income, with no more than three income bands, none exceeding 100% AMI, and at least 20% of the affordable floor area reserved for households at 40% AMI or below.11NYC HPD. Universal Affordability Preference Fact Sheet
The amendment also legalized accessory dwelling units citywide for the first time. Owners of one- or two-family homes can add one ADU of up to 800 square feet, either as a backyard cottage or a conversion of existing space. Detached ADUs are capped at two stories and 25 feet, must sit at least five feet from the lot line, and need ten feet of separation from other buildings on the lot. No additional parking is required.12NYC Department of City Planning. City of Yes for Housing – Accessory Dwelling Units ADUs are not permitted in Special Coastal Risk Districts, and basement ADUs are excluded from coastal flood areas.
Office-to-residential conversions were eased for buildings constructed before 1991. A separate state program (the 467-m tax exemption) provides property tax relief for 25 to 35 years if at least 25% of converted units are income-restricted. Those affordable units must be rent-stabilized permanently, with at least 5% restricted at 40% AMI and an overall average not exceeding 80% AMI.13NYC Comptroller. Office-to-Residential Conversions in NYC: Economics and Fiscal Estimates
Federal Limits on What City Zoning Can Do
The city’s zoning authority is broad but not unlimited. The federal Fair Housing Act bars zoning rules that discriminate in the sale or rental of housing based on race, color, religion, sex, familial status, national origin, or disability.14Office of the Law Revision Counsel. 42 USC 3604 The Supreme Court confirmed in 2015 that this extends to policies with a discriminatory effect, not only discriminatory intent. The Act also requires reasonable accommodations for people with disabilities, so a zoning board cannot refuse a variance for a group home based on generalized fears rather than specific, evidence-based concerns.
The Religious Land Use and Institutionalized Persons Act prevents local governments from imposing zoning rules that substantially burden religious exercise unless the restriction serves a compelling interest and uses the least restrictive means. It also bars zoning that treats religious institutions worse than comparable nonreligious ones, discriminates between denominations, or totally excludes houses of worship from a jurisdiction.15U.S. Department of Justice. Religious Land Use and Institutionalized Persons Act of 2000
How to Look Up Your Property’s Zoning
Start with the Borough, Block, and Lot number: a ten-digit identifier unique to every parcel in the city, formatted as one digit for the borough, five for the block, and four for the lot.16NYC.gov. Greener Greater Buildings Plan Weekly Digest, Vol. 8
The main research tool is ZoLa (Zoning and Land Use Application), maintained by the Department of City Planning. ZoLa lets you search by address or BBL and shows the zoning district, commercial overlays, special purpose districts, floodplain designations, tax lot boundaries, and nearby subway stations on a single interactive map.17NYC Department of City Planning. ZoLa Features Check the floodplain layers carefully. Properties in FEMA’s high-risk V or A zones face elevation requirements and building restrictions that override standard zoning bulk rules.
You also need the current Certificate of Occupancy from the Department of Buildings, which establishes the legally permitted use and occupancy of the building as it stands today.18NYC Department of Buildings. Certificate of Occupancy If your project changes the use or occupancy from what the C of O allows, you’ll need to address that before or alongside any zoning filings. Skipping this is how owners discover mid-construction that their building has been operating under the wrong classification for years.
Zoning Resolution Determination Requests
When you need a formal written interpretation of whether your project complies with the resolution, file a Zoning Resolution Determination (ZRD1). The form requires your BBL, a detailed project description, and citations to the specific zoning resolution sections at issue.19NYC Department of Buildings. ZRD1/CCD1 Instructions Submissions go through the DOB NOW: Build portal.20NYC Department of Buildings. DOB NOW: Build The filing fee is $1,000 per form, and only one determination request can be submitted per form. An appeal of a denied determination costs $2,500.21NYC Department of Buildings. Review Fees for Construction Codes Determinations and Zoning A favorable determination lets you move to building permits. A denied one gives you the Letter of Determination needed to appeal to the Board of Standards and Appeals.
What Zoning Violations Cost
The Department of Buildings issues zoning violations, and penalties are handled through OATH (formerly ECB). Civil penalties for major violations range from $1,000 to $10,000 per violation, with an additional penalty of up to $250 per month the violation remains uncorrected.22American Legal Publishing. NYC Administrative Code 28-202.1 – Civil Penalties Violations involving privately owned public spaces carry minimum penalties of $4,000 for a first offense and $10,000 for each subsequent offense, on top of the monthly penalties.
Fines accumulate quickly, and a continuing violation can run into tens of thousands of dollars before resolution. Beyond the money, an open zoning violation can block new permits, stall a sale, and create problems with lenders and title insurers. If you discover an existing violation on your property, resolve it before filing any new applications.