C1-8X Zoning District — New York City

Lots carrying this designation show a building-class order that is genuinely unusual in this file: mixed residential-and-commercial buildings lead the recorded classes at 23%, ahead of walk-up apartment buildings at 20% and elevator apartment buildings at 16%. Most comparable designations show a purely residential class at the top; here, commerce-adjacent construction tops the list instead, describing a fabric built around ground-floor business use more consistently than most designations in this batch. Few other designations in this set place a mixed-use class ahead of every purely residential category, which makes this ordering one of the more distinctive in the file.

The construction record is heavily prewar even so: 89% of recorded buildings predate 1940, and the median year is 1910. The postwar boom added only 5% to the stock, and 4% of buildings have gone up since 2000 — a slow trickle of recent construction layered onto an old, mostly finished fabric that the building-class order above doesn't on its own suggest. The gap between an old median year and a still-modest boom-era share suggests steady, incremental building rather than one concentrated wave, a pace that reads as ongoing rather than stalled next to designations elsewhere in this batch where recent construction has essentially stopped.

By land use, mixed residential-and-commercial use covers 62% of these roughly 290 lots, one- and two-family use 14%, and multi-family elevator use 10%. A substantial minority, 39% of lots, carry historic-district status — one of the larger recorded overlaps in the file, layering landmark review over a meaningful share of this designation's footprint, alongside its zoning. Lots run modest, with a median of 1,957 square feet and the 90th percentile reaching 8,983 square feet, a size range that sits comfortably within the middle of what this batch of designations records.

Overall, 91% of lots are coded residential, and the file counts 5,261 homes across the designation. None of these lots, 0%, sit inside the mapped federal flood zone. On the development side, 90% of lots record floor area below their allowance, with a median residual of 5.4 FAR — one of the wider recorded gaps in the file. Combined with the historic-district share above, that headroom figure describes a designation with real recorded capacity even where landmark rules also apply. Buildings rise to a median of 5 stories, with 20% recorded above 6 floors. The tables above carry the actual floor-area and height rules for this designation, citations included; each lot's specific numbers are one click away on its own page.