M1-4/R9 Zoning District — New York City

For this designation, the file is honest about what it does not know: year-built and floor-height coverage are both absent for the roughly 8 tax lots carrying this designation, so no age or story figures can be cited here. That is a gap in the record, not a description of the buildings themselves — a family of statistics the file simply does not carry reliably for this small a sample, rather than a signal that the buildings are unusually old, new, tall, or short.

What the file does carry on these lots is a striking development figure: 100% of them record floor area below their allowance, at a median gap of 6.7 FAR — among the largest recorded residual gaps of any designation profiled in this file. On a median lot of 9,500 square feet, reaching 28,500 square feet at the 90th percentile, that gap describes real recorded square footage, though what any specific lot could add depends on the rules that govern it rather than on this designation-wide figure alone. A gap this size, recorded across every one of these lots, sets this designation apart from most others profiled here, where at least some lots typically show a smaller residual or none at all.

By land use, commercial-and-office use leads at 38% of lots, industrial use follows at 25%, and multi-family walk-up use adds 13%. Building classes on record lead with one class at 25% of the mix, walk-up apartment buildings at 13%, and a further class also at 13% — a working footprint weighted toward commerce and industry rather than housing. Just 13% of lots are coded residential, though the file still counts 12 recorded units within this small designation, a modest residential presence layered into an otherwise commercial and industrial land-use record.

None of these lots, 0%, sit inside the mapped federal flood zone, and none, 0%, carry historic-district status on record. Combined with the missing age and height coverage, the file describes this designation almost entirely through its land use, its lot sizes, and its development ledger rather than through its buildings' age or profile — a genuinely thin record by the standards of most designations profiled here, but an honestly thin one, with every gap flagged rather than filled in with a guess. The floor-area rules that actually govern these roughly 8 lots are spelled out, with citations, in the tables above.