What the city's tax-lot file counts here
The city's tax-lot file (PLUTO) places 36,436 residential units on 261 lots in the official Financial District-Battery Park City area, NTA MN0101. Condo units account for 45.7% of that total, elevator rentals for 42.8% and co-op units for 9.6%. Buildings put up before 1940 hold 30.2% of the units, those from 1940 through 1979 hold 28.2%, and those from 1980 onward hold 41.5%. Battery Park City sits inside the same official area, so each figure blends the two places.
Historic districts around Stone Street and the Seaport
Four designations by the Landmarks Preservation Commission cover parts of this area. The South Street Seaport Historic District was designated on May 10, 1977 (LP-0948), and its extension followed on July 11, 1989 (LP-1646). The Fraunces Tavern Block Historic District dates from November 14, 1978 (LP-0994), and the Stone Street Historic District from June 25, 1996 (LP-1938). The 1977 Seaport report itself records that the Board of Estimate modified that designation in July 1977, so check a single address against the Commission's current maps rather than the original report text.
The Commission's rule reads: "The City's Landmarks Law requires owners to obtain permits from the Landmarks Preservation Commission before doing work that affects the exterior and, in some cases, the interior of a designated landmark property" (LPC applications).
Zoning Resolution Article IX, Chapter 1 sets up the Special Lower Manhattan District and names three subdistricts that reach this area: the Historic and Commercial Core, Water Street and South Street Seaport (ZR Article IX, Chapter 1).
Two building filings worth reading line by line
The five-year facade report
Buildings "higher than six stories" must have their exterior walls and appurtenances examined every five years, with a technical report filed with the Department of Buildings (FISP). Each filing is rated Safe, Unsafe or SWARMP, which the DOB defines as "safe at the time of inspection, but requires repairs or maintenance during the next five years". An Unsafe rating means the owner "must immediately install protection, such as a sidewalk shed", with repairs due within 90 days of filing. Cycle 10 opened on February 21, 2025, and the last digit of the tax block sets each building's window (Cycle 10 schedule): blocks ending in 4, 5, 6 or 9 file between February 21, 2025 and February 21, 2027; blocks ending in 0, 7 or 8 between February 21, 2026 and February 21, 2028; blocks ending in 1, 2 or 3 between February 21, 2027 and February 21, 2029. The block number is part of the property's BBL, and the DOB's Building Information System lists the filings and any open violations under it. If the last cycle's rating was SWARMP, ask whether those repairs were done and how they were paid for.
Emissions limits and the posted letter grade
Emissions limits under Local Law 97 bind any building that "exceeds 25,000 gross square feet"; they began in 2024 and tighten in 2030 (Local Law 97). A separate rule turns a building's Energy Star score into a letter: A at 85 or above, B from 70, C from 55, D below 55, F where required benchmarking data was never submitted, and N for exempt buildings (energy grades). The benchmarking page lists a $1,250 violation for failing to display the grade (benchmarking). The board or managing agent can say how the building stands.
Flood maps and the waterfront projects
On the shoreline of the city's Financial District-Battery Park City area, FEMA's effective map shows AE and VE zones, together with 0.2%-annual-chance flood hazard areas (effective NFHL). The preliminary map, which is not yet in force, also shows an AO zone (preliminary NFHL). For one building, look up the exact address at the FEMA Flood Map Service Center.
City resiliency pages describe work on the East River side. The Seaport Coastal Resilience project covers the waterfront "between John Street and the Brooklyn Bridge", aims to "raise the affected waterfront to 11 feet above sea level", and, in the page's words, "began in 2024 and has an anticipated completion date of 2028" (Seaport project). An interim line of Tiger Dams and HESCO barriers, built to "protect against a 10-year flood", was installed in September 2019 "in the Seaport and parts of the Two Bridges and Financial District neighborhoods" (interim measure). Read each status as of the page's date. For a given building, ask the board where the switchgear, boilers and fuel supply sit, and what flood work was done after 2012.
Inside the unit, and outside its reach
In a condo or co-op unit, the inspection starts with the heating and cooling equipment serving the apartment, whether fan-coil units, packaged terminal units or a split system. It goes on to windows and their seals, kitchen and bath exhaust, signs of water arriving through a ceiling from the unit above or through an exterior wall, sinks, tubs, toilets and the visible supply and drain lines, and the electrical panel, circuits, outlets and fixtures. If the building was converted from office use, ask for its Certificate of Occupancy too. The facade, roof, elevators, central plant, the board and the reserve fund sit outside a unit inspection; they come from the filings above, the offering plan and the building's own documents.
Stations and ZIP-code areas
The MTA's station list (data.ny.gov) puts eleven station points inside the official area: Fulton St (2 3, 4 5, A C, J Z), the two Wall St stations (4 5 and 2 3), Broad St (J Z), Bowling Green (4 5), the two Rector St stations (R W and 1), Cortlandt St (R W), WTC Cortlandt (1), Whitehall St-South Ferry (R W) and South Ferry (1). ZIP-code tabulation areas 10005, 10006, 10038 and 10271 intersect this official area but not the Special Battery Park City District (TIGERweb); each only approximates a ZIP code. Deeds, condo declarations and mortgages are recorded in ACRIS, searchable by block and lot.