R2X Zoning District — New York City

Few designations in this stretch of the map cover as few lots as this one: just 1,300 tax lots carry it citywide, a small footprint next to the tens of thousands mapped under some of the neighboring low-rise categories in this batch. What stands on those 1,300 lots is remarkably uniform in composition. 90% of recorded buildings fall into the one-family class, with two-family homes adding a further 6% and vacant land just 2% — one of the more single-family-concentrated stocks recorded in this bracket, and a tighter concentration than several of its larger-footprint neighbors show. The lots themselves run larger than most of their neighbors, too: a median of 4,377 square feet, with the 90th percentile reaching 7,480 square feet, room enough for the freestanding houses the class mix describes.

Land use tracks that building-class mix closely: one- and two-family use covers 96% of these lots, vacant land accounts for 2%, and a further 1% falls under other recorded land-use categories — a land-use file with almost no daylight between what is zoned residential and what the recorded building classes actually show standing on it. Overall 97% of lots are coded residential, and the file counts 1,407 homes across the designation — a modest number given the small footprint, but consistent with lots this size holding one or two households apiece rather than multiple units stacked into a single building the way denser designations elsewhere in this batch record.

The construction record on these lots is a fairly even split between two eras: the median construction year is 1940, with 42% of recorded buildings predating that year and 27% dating from the 1945-1975 postwar boom that followed. Recent construction has kept pace too — 11% of buildings on record have gone up since 2000, among the higher recent-construction shares in this set of designations, on a stock that otherwise reads as solidly mid-century rather than concentrated in any single decade.

None of the recorded buildings rise particularly high: the median height is 2 stories, and 0% of buildings on record climb above 6 floors, consistent with the low-rise, mostly single-family pattern described above. On the flood side, 5% of these 1,300 lots sit inside the mapped federal flood zone, a modest share on a small footprint. Development room is real: 84% of lots record floor area below their allowance, with a median residual of 0.4 FAR. None of this designation's recorded stat families come back nulled for coverage, so every figure above draws on a complete read of the file rather than a partial one. Each of these 1,300 lots keeps its own recorded figures on file, and whatever floor area or height the zoning actually permits here is spelled out, section by section, in the tables above.