R9-1 Zoning District — New York City

Only about 6 tax lots citywide carry this designation, making it the rarest mapping among the districts covered in this batch. What the records show on that handful of lots is also the newest and tallest stock in the file: a median construction year of 2001, and a median height of 14 stories, with 60% of recorded buildings rising above 6 floors — figures unmatched by any other designation profiled here. Where most designations in this batch carry at least some prewar layer beneath their newer construction, this one shows almost none. That absence of an older layer is itself part of what makes the recorded profile here read as essentially a single-era stock rather than one built up over decades.

Recency runs through every construction-era figure here. Just 20% of recorded buildings predate 1940, 0% fall inside the 1945-1975 postwar boom window, and 60% have been built since 2000 — the highest recent-construction share in this batch by a wide margin. On a stock this small, each of the six lots carries real weight in these figures, and a single building's construction date can move the recorded share by a large amount, unlike in larger designations where individual buildings barely move the aggregate.

Condominiums lead the recorded building classes at 33%, with walk-up apartment buildings and elevator apartment buildings each at 17%. By land use, mixed residential-and-commercial use covers 50% of lots and multi-family elevator use another 17%, alongside a further 17% recorded under another land-use category. Residential use covers 67% of lots, and the tax-lot records count 778 homes across this small footprint — a modest total in absolute terms, though notable given how few lots carry this designation at all. No other recorded class approaches the condominium share, and the land-use split above tells a similar story — mixed use and multi-family elevator use together account for most of the footprint on these six lots.

Lots run large for a designation this rare: a median of 8,642 square feet, with the 90th percentile reaching 25,691 square feet — scale consistent with the tall, recent stock recorded above. None of the lots, 0%, sit inside the mapped federal flood zone — a statement about the regulatory boundary, not a claim about what water any of these six lots has seen — nor do any carry historic-district status on record. Recorded capacity still shows a gap on 67% of lots, at a median of 1.9 FAR, even on a stock built this recently and this tall. Whatever these six lots are permitted to carry, with citations, is tabulated above; this page only describes what the records already show.