M1-6/R8X Zoning District — New York City

This is one of the smallest designations profiled in this file: only 2 tax lots citywide carry it, so every percentage below describes one lot or the other rather than any broader pattern. What those two lots share is a rare double overlap — both sit inside the mapped federal flood zone, a full 100%, and both also carry historic-district status on record, another full 100%. A designation this small showing both figures at their maximum is not something every tiny footprint in this file can claim; smallness alone does not usually produce two unanimous overlays at once, and reading any single percentage here as a citywide trend rather than a fact about one of two specific parcels would be a mistake.

The recorded building classes split evenly: elevator apartment buildings account for 50% and office buildings the other 50%, with land use following the identical split — mixed residential-and-commercial use covers 50% of the two lots and commercial-and-office use the remaining 50%. Half of the lots, 50%, are coded residential, and together they carry 41 units on record — a real population for a designation with a footprint of just two parcels. That even split runs through nearly every figure recorded for this designation, from building class down to land use, rather than surfacing on just one measure.

Age is split the same even way as everything else here: 50% of recorded buildings predate 1940 and the other 50% have gone up since 2000, with none recorded from the 1945-1975 postwar boom in between. The median construction year across the two lots is 1892, and the median lot size is 9,545 square feet — a figure that is also the 90th percentile, since there are only two lots to measure. Buildings rise to a median of 5 stories, with 50% of the recorded stock above 6 floors, and that height figure, too, splits the two lots evenly rather than describing one tall building and one short one.

Development room is narrower here than the flood and historic figures might suggest: 50% of lots record floor area below their allowance, but the median residual is 0 FAR — essentially no recorded slack on the lot that has any recorded gap at all. Set against the full flood and historic overlaps described above, that narrow development margin is the one figure here that does not read as maximal, a distinction worth keeping straight when comparing this designation's numbers against others in the batch. The specific figures behind either of these two parcels sit on that lot's own page, and the floor-area and height rules that govern this designation are cited, section by section, in the tables above.