M1-4/R7-3 Zoning District — New York City

This designation covers a small, working footprint: just 8 tax lots citywide, and none of them, 0%, are coded residential on record. The land use is split cleanly between two categories — industrial use accounts for 63% of lots and commercial-and-office use for 38%, leaving no recorded residential or mixed-use share at all. The recorded building classes echo that division, led by one class at 63% of the mix, a second at 25%, and a third at 13%, a stock organized entirely around work rather than housing categories of any kind. Even so, the file counts 14 recorded units within this small footprint, a modest figure that sits alongside that industrial and commercial land use rather than contradicting it — a handful of units can be recorded on parcels that are not themselves coded as residential lots.

Every one of these lots, 100%, records floor area below its allowance, at a median gap of 4 FAR — full recorded headroom across the whole designation, and a wider gap than most other designations in this file show. On a median lot of 13,216 square feet, with the largest recorded parcel reaching 43,100 square feet, that headroom describes real square footage on record, though what any specific lot could add depends on the rules that govern it individually rather than on the designation-wide figure. A gap this consistent across every lot in such a small sample is itself notable: nothing on record here has already been built out to its full recorded allowance.

The building stock on record is low and mid-century: a median construction year of 1975, with 38% of buildings predating 1940 and 13% dating from the 1945-1975 postwar boom. None of the recorded stock, 0%, has gone up since 2000, and buildings run to a median of just 1 story, with 0% rising above 6 floors — a flat, older working landscape rather than a rebuilding one. That combination of age and height describes a stock left largely as originally built, without the additions or replacements that show up as recent-construction shares elsewhere in this file.

None of these 8 lots, 0%, sit inside the mapped federal flood zone, and none carry historic-district status on record. Combined with the full recorded headroom above, the file describes a compact working footprint with no flood exposure or landmark overlay on record — a designation defined more by its land use and its development ledger than by any risk or review layer. The floor-area and height rules that actually govern any of these lots are laid out, with citations, in the tables above.