East Williamsburg, Brooklyn

East Williamsburg keeps two sets of books. The residential ledger shows 75% of lots in residential use — the lowest share among the neighborhoods that carry the Williamsburg name — while the balance of the map belongs largely to industry and commerce toward Newtown Creek. Lot geometry says the same thing: the median lot is a rowhouse-scale 2,500 square feet, but the ninetieth percentile jumps to 13,000, a spread produced by warehouse and factory parcels sitting a block or two from three-story homes. Manufacturing rules still govern sections of the map, and the land-use mix — 35% multi-family walk-up, 19% one- and two-family, 18% mixed residential-commercial — records the interleaving directly.

The housing side of the file is larger than the industrial reputation suggests: 30,570 recorded units across roughly 4,600 tax lots. Walk-up apartment buildings lead the class mix at 32%, two-family homes at 15%, and mixed residential-commercial buildings at 12%. Heights stay low, with a median of 3 stories and only 2% of buildings above 6 floors. The stock is 71% prewar around a median year built of 1928, though the boom decades between 1945 and 1975 left a heavier mark here than in the rest of the Williamsburg group, at 8% of buildings — a reminder that this area kept building through decades when the districts to its west largely did not — and 16% of the stock dates from 2000 or later.

Zoning capacity is broad on paper: 71% of lots carry recorded floor area under their district allowance, with a median residual of 0.6 FAR. 0% of lots fall inside a designated historic district, so none of that headroom answers to landmark review. What it does answer to is the manufacturing zoning itself, which determines whether a given parcel can hold housing at all — a district-by-district question that the neighborhood aggregate cannot settle, and one reason the per-lot record matters more here than in a uniformly residential file. In a map split this way, the residential aggregate and the industrial aggregate answer different questions, and neither answers for the other.

Flood mapping touches the neighborhood only lightly: 2% of lots sit inside the federal special flood hazard area, a regulatory boundary rather than a flood history. East Williamsburg borders Greenpoint and Williamsburg to the west, South Williamsburg and Bushwick to the south, Bedford-Stuyvesant beyond them, and Maspeth and Ridgewood across the Queens line — one of the longer adjacency lists in the borough's records. For any single address, the year-built, lot-size, capacity, and flood figures above resolve to specific recorded values rather than area averages.