M1-3A/R7X Zoning District — New York City

This designation's development figures stand out from the rest of the batch: all 100% of its roughly 38 tax lots show floor area below their allowance, and the median residual, 4.4 FAR, is the largest of any designation profiled here — wider than any other paired manufacturing-and-residential designation in this batch records. That figure describes recorded stock measured against allowance on each lot, not a regulatory limit in itself — the governing rules sit in the tables above. Alongside that gap, the file carries no reliable year-built or floor-height coverage for these lots, an absence in the record rather than a claim that no construction history exists, one shared with only a couple of other designations in this batch, leaving lot size and flood status to carry more of the descriptive weight than usual.

Vacant land classifications lead the recorded building classes at 24%, garage buildings follow at 16%, and one-family homes add 13% — a mix that points to a meaningful undeveloped share standing alongside modest household structures rather than a dense built-up pattern. Land use runs vacant land at 25%, one- and two-family use at 19%, and multi-family walk-up use at 14%, a land-use file that mirrors the vacant-heavy building-class mix above it closely. Only 33% of lots are coded residential, and the file counts 52 homes across the designation, a modest unit total consistent with a footprint carrying this much recorded vacant ground.

Flood exposure here is real but partial: 18% of these lots sit inside the mapped federal flood zone, a meaningful minority rather than the near-zero or near-total figures other designations in this batch show. Lots run a median of 4,000 square feet, with the 90th percentile reaching 10,000 square feet. None of these lots, 0%, carry historic-district status on record, leaving flood exposure as this designation's only real recorded overlay beyond the zoning map itself.

With age and height unrecorded and development room this wide, this designation's file leans heavily on lot size, flood status, and the development figures above to describe its recorded stock. The roughly 38 lots each hold their own recorded figures beyond this citywide picture; what actually governs floor area and height for the designation is cited, with sources, in the tables above rather than summarized here.