Upper East Side-Yorkville, Manhattan

Yorkville's tax-lot records show the most residential land use of any Upper East Side neighborhood profiled here: 92% of lots are coded residential, and walk-up apartment buildings account for 55% of the building-class file — likewise the highest share recorded among nearby Upper East Side neighborhoods, ahead of both neighboring Upper East Side-Carnegie Hill and Upper East Side-Lenox Hill-Roosevelt Island. Elevator-apartment buildings follow at 19%, and one-family classifications at 6%. That residential concentration, paired with the walk-up-heavy building stock, describes a neighborhood built primarily to house people rather than to mix housing with substantial commercial or office space.

The land-use file backs up the walk-up character: 39% of lots are coded multi-family walk-up, 29% mixed residential-and-commercial, and 15% multi-family elevator. Age records show 81% of buildings predating 1940 and a median construction year of 1920, with 10% of the stock falling inside the 1945-to-1975 postwar boom — a notably higher postwar share than the historic-district-heavy files nearby. Just 3% of buildings have gone up since 2000, a thin recent-construction figure consistent with a built-out, mostly prewar neighborhood. The postwar share here is also worth noting against the neighborhood's own historic-district figure: even with relatively little formally protected fabric, construction activity from 1945 to 1975 stayed modest by citywide standards.

A historic district designation covers just 1% of Yorkville's roughly 1,500 tax lots, one of the thinner shares recorded in this part of Manhattan, even as the neighborhood's construction-year profile skews prewar overall. Height records show a median building of 5 stories, with 15% of the stock rising above 6 stories — a lower elevator-building share than several neighboring files despite Yorkville's dense residential land use. Lower building heights alongside a historic district covering just 1% of lots point to a neighborhood shaped more by market-driven walk-up construction over time than by preservation rules.

Development records find 74% of lots carrying unused floor-area capacity, with a median residual of 0.7 FAR points across the neighborhood. Flood mapping places 3% of lots inside the federally mapped floodplain, a map-based figure rather than a claim about any specific address. Lot sizes run to a median of 2,554 square feet, with the largest recorded lots reaching 11,340 square feet, and the file counts 52,823 housing units across Yorkville's roughly 1,500 tax lots. Taken as a whole, Yorkville's file describes a dense, walk-up-dominated residential neighborhood with a meaningful, if modest, recorded development cushion under current rules.