M1-2/R5B Zoning District — New York City

This designation's 170 tax lots carry a stock that is heavily prewar — 79% of recorded buildings predate 1940, with a median construction year of 1920 — but what stands out is the balance in the two eras that followed. The 1945-1975 postwar boom and construction dated 2000 or later each account for exactly 8% of the recorded stock, an even split between two periods that produced very different building types elsewhere in the city. Here, neither one left noticeably more of a mark than the other, which is unusual enough on its own to be worth noting against the sharper imbalances some other designations in this file show between those same two eras.

Two-family homes lead the recorded building classes at 28%, followed by walk-up apartment buildings at 18% and one-family homes at 13%. Land use runs in the same direction: one- and two-family use covers 41% of the 170 lots, ahead of multi-family walk-up use at 18% and industrial use at 17%. Add it up and 65% of the 170 lots land on the residential side, with 442 homes recorded across the designation — a rowhouse-and-industrial mix weighted toward the residential side but not entirely free of the industrial presence recorded in the land-use figures.

Lots run to a median of 2,521 square feet, with the largest recorded parcels reaching 6,685 square feet — a tighter spread than some of the larger designations in this file, and one that lines up with the rowhouse-and-walk-up building classes recorded above. Heights stay low, at a median of 2 stories, though 2% of recorded buildings rise above 6 floors, a small share of taller construction on an otherwise uniform block. The federal flood map shows 0% of these 170 lots inside the mapped hazard zone, and the landmark record shows the same: 0% carry historic-district status, leaving this designation without either overlay that some others in the batch carry.

On the development side, 75% of these 170 lots show recorded floor area under their allowance, with a typical residual of 0.6 FAR — broad reach on parcels of fairly modest size, and a share of headroom that sits toward the higher end of what this batch of designations records. The 170 lots on record each carry their own specifics beyond the shares summarized here; what actually governs floor area and height for the designation, citation and all, is set out in the tables above, alongside the same citations that apply to every lot carrying this designation.