M1-2/R5D Zoning District — New York City

On the 150 tax lots carrying this designation, 71% of recorded buildings predate 1940, with a median construction year of 1930. What sets this stock apart is what came after the prewar era: only 6% of buildings date from the 1945-1975 postwar boom, while 16% — more than double that share — have been built since 2000. Recent construction has added more to this stock than the boom decades ever did, a pattern that runs opposite to most of the older, more purely prewar designations profiled elsewhere in this file, where the boom years typically outweigh anything built since.

Two-family homes lead the recorded building classes at 25%, followed by walk-up apartment buildings at 17% and factory and industrial buildings at 11%. By land use, one- and two-family use covers 28% of the 150 lots, mixed residential-and-commercial use another 20%, and industrial use 19% — a more varied mix than the rowhouse-only pattern seen in some comparable designations. Taken together, 61% of the 150 lots read as residential, and the file counts 1,232 homes — a dense figure given the lot sizes involved, and one that points to multiple recorded units on a meaningful share of these parcels rather than single-family use throughout.

Lots run to a median of 2,523 square feet, with the largest recorded parcels reaching 7,510 square feet. Heights edge higher here than in some comparable designations: a median of 2 stories, but with 6% of recorded buildings rising above 6 floors — a modest but real share of taller construction layered onto an otherwise low-rise footprint. 64% of these 150 lots carry recorded floor area beneath their allowance, and the typical residual runs to 0.8 FAR, a middling gap next to the narrower and wider margins recorded on other designations in this batch.

Neither overlay applies here: 0% of the 150 lots sit inside the mapped federal flood zone, and 0% carry historic-district status on record — an absence that lines up with a stock built mostly away from the waterfront and outside any landmark boundary. Every one of the 150 lots keeps its own figures on file beyond what's summarized here, and the citywide floor-area and height limits governing the designation, with citations, are tabulated above for anyone checking a specific parcel.