NYC Zoning Analysis

A zoning analysis is that check. It isn’t a ZoLa screenshot and it isn’t a guess from an old survey. It’s a plain-language read of what your zoning lot can carry under the Zoning Resolution today.

What the analysis covers

We look at:

• Allowable floor area under the current zoning district (and any special district rules that apply)
• What’s already built on the lot
• What’s left: the unused floor area people often call air rights
• Whether a merger or transfer is realistic on these lot lines (for example, a zoning lot merger when lots touch, or a landmark or special-district transfer where those rules apply)
• Height, setback, and yard limits that still constrain what you can put on the lot, even if floor area is available

City of Yes changed parts of the math for a lot of properties. Numbers that looked right a few years ago can be wrong now. The analysis uses the current rules, not an old flyer.

Floor area ratio (FAR): what your lot allows

Floor area is the total square footage of the floors in a building, counted the way the Zoning Resolution counts it. FAR, or floor area ratio, is the number the zoning district uses to set the maximum. In general terms, FAR times the lot area gives the maximum floor area. For example, a FAR of 2 on a 5,000 square foot lot means about 10,000 square feet of floor area. That example only explains the idea; the real number for any lot depends on the district, any special district, how floor area is counted, and what is recorded against the lot. Height, setback and yard limits then decide whether that floor area actually fits.

Zoning lot mergers

A zoning lot merger combines lots that touch for at least 10 feet into one zoning lot, so unused floor area from one side can be used on the other. It isn’t a City hearing; it’s paperwork on record, usually with a zoning lot development agreement that the owners and their attorneys handle. A zoning lot is often the same as a tax lot, but not always: two lots that look separate on a tax map may already be tied together on paper. See how NYC air rights move through mergers and landmark transfers.

What City of Yes changed for your lot

City of Yes is a set of citywide zoning changes the City adopted in recent years that rewrote parts of the Zoning Resolution. For many properties the numbers aren’t what they were a few years ago, so an old survey, appraisal or broker flyer can be wrong now. We can’t say what changed for your lot without looking, but the analysis uses the current rules, including City of Yes.

Zoning analysis vs the ZD1 zoning diagram

ZoLa, the City’s free zoning map, shows a lot’s district and basic lot information. It’s a starting point, not the answer. The ZD1 is the zoning diagram filed at DOB with certain applications, such as new buildings and enlargements; the architect or engineer prepares and seals it, and we file it. The zoning analysis comes first, so the numbers on the ZD1 hold up when the filing goes in.

Who it’s for

Owners and developers in New York City who are:

• Buying a building “with air rights” and want to know what’s real
• Planning an enlargement or conversion
• Looking at selling or transferring unused floor area
• Trying to decide if a neighbor’s merger or transfer could affect the lot
• Getting ready to file at DOB and need the zoning story straight before drawings go in

How we work

S & M Expediting is a Class 2 filing representative. We don’t prepare architectural drawings. Architects or engineers still seal the ZD1 and the plans.

What we do is read the zoning, put the numbers in plain language, and file at DOB when you’re ready to move. The zoning analysis is often the first step. The filing comes after. Read more about how NYC air rights move between lots.

Start with the lot, not the brochure

Guessing from a map is how deals stall and filings bounce. If you need to know what a New York City lot is carrying, and what you can actually do with it, talk to us.