Chelsea-Hudson Yards, Manhattan

Chelsea-Hudson Yards's land-use file splits nearly down the middle between two categories: 27% of the roughly 1,900 tax lots are recorded as plain multi-family walk-up use and another 27% as mixed residential-and-commercial use, with 15% more classed as commercial-and-office. Building-class records add a third dimension — 32% walk-up apartment buildings, 12% elevator apartment buildings, and 12% condominiums. 72% of lots carry a residential designation, holding 53,520 housing units on a median lot size of 2,582 square feet — a lot count that mixes rowhouse-scale parcels with the larger assembled sites the condominium and mixed-use shares suggest.

The age record spans a wide range for a single neighborhood. The median building here dates to 1910, and 80% of the recorded stock predates 1940 — but 11% has been built since 2000, alongside a modest 6% from the 1945-to-1975 postwar-boom years. Height reflects that same mix: a median of 5 stories, yet 25% of buildings on record rise above 6 floors, one figure describing the typical block and the other describing its taller outliers — a gap that shows up on the ground as prewar rowhouses standing beside newer, taller construction on the same blocks.

Flood mapping reaches 8% of the neighborhood's lots, a record of the current federal map rather than a claim about the rest of the neighborhood's exposure to water. 16% of lots sit inside a mapped historic district, layering design review on top of a building stock that is otherwise 80% prewar by year built. Development records show 70% of lots carrying recorded floor area below their zoning allowance, with a median residual of 1.1 in floor-area ratio still available on file, sitting next to the 11% of the building stock already built since 2000.

Lot sizes run larger than a typical rowhouse block: a median of 2,582 square feet, with the upper end of the range reaching 19,750 square feet. Recorded zoning mixes low- and mid-rise contextual districts with commercial-overlay districts, consistent with the neighborhood's even split between walk-up and mixed-use land records. The file borders Greenwich Village and West Village to the south, Hell's Kitchen to the north, and Midtown South-Flatiron-Union Square and Midtown-Times Square to the east. Anyone comparing a specific parcel against the 70% headroom figure will want the lot's own recorded floor area and district allowance rather than the neighborhood median, since the 1.1 residual is a midpoint across a wide range of lot sizes.