M1-4/R7X Zoning District — New York City

Few designations in this file split their recorded land use as evenly as this one: mixed residential-and-commercial use accounts for 23% of lots, commercial-and-office use 22%, and industrial use 19% — three categories bunched within a few points of each other rather than one clearly dominant use. Residential use is a minority share of that mix: just 25% of lots are coded residential, though the file still counts 1,554 recorded homes across the roughly 64 tax lots carrying this designation. A land-use record spread this evenly across three working categories, with housing as a fourth, smaller share rather than the leading one, is uncommon among the designations profiled in this file.

The building classes on record echo that variety without any one class dominating: one recorded class leads at 17% of the mix, with two more each at 13%, including vacant-land classifications. That spread across several classes and several land uses describes a working, mixed fabric rather than a uniform residential or industrial one — a designation where no single building type or use accounts for even a quarter of what stands on record, and where the vacant-land share signals that some of this footprint remains unbuilt even now.

The recorded stock leans older but not overwhelmingly so: 55% of buildings predate 1940, the median construction year is 1931, and just 4% date from the 1945-1975 postwar boom. A substantial 38% of the recorded stock has gone up since 2000 — recent construction nearly matching the prewar share, unusual among the designations in this file. Buildings run to a median of 3 stories, with 24% rising above 6 floors, on a median lot of 8,338 square feet reaching as high as 33,640 square feet at the 90th percentile, a broader range of parcel sizes than the tightest designations in this batch show.

Flood exposure sits at 9% of lots on the federal map — a description of the mapped boundary, not a tally of which lots have taken on water — and none of these lots, 0%, carry historic-district status. The development ledger shows 84% of lots recording floor area below their allowance, at a median gap of 3.6 FAR — broad recorded headroom across a designation with mixed and often smaller uses, and one more respect in which this designation's record reads as varied rather than concentrated in any single measure. What actually governs any specific lot here, floor area and height alike, is detailed with citations in the tables above.