Check the use before the finishes
In SoHo, what a loft may legally be used for can matter as much as its condition. On December 15, 2021, the City Council approved the SoHo/NoHo Neighborhood Plan, which created the Special SoHo-NoHo Mixed Use District and "replaced the existing M1-5A and M1-5B designations with M1-5" (DOB conversion guidance; plan summary as adopted). The Zoning Resolution is direct: "Conversions to joint living-work quarters for artists shall not be permitted after December 15, 2021, within the Special SoHo-NoHo Mixed Use District" (ZR 143-13, last amended June 6, 2024).
Existing joint living-work quarters for artists, known as JLWQA, can move to residential use along a path the DOB sets out: certification by the City Planning Commission Chair, "a one-time, non-refundable contribution to the Soho-Noho Arts Fund" at "$100 per square foot of converted floor area", the code work, and a new Certificate of Occupancy. The DOB also warns that a unit whose occupant does not qualify under the zoning definition "may be subject to enforcement". The zoning chapter adds that these conversions "shall not be subject to the provisions of paragraph (a)(1) of Section 27-131 (Mandatory Inclusionary Housing)". A building may instead fall under the Loft Law, the 1982 state statute that covers former commercial or manufacturing buildings occupied as homes by "three or more families living independently from April 1, 1980 through December 1, 1981", overseen by the Loft Board (Loft Board). The special district is not confined to SoHo: it continues north into NoHo, which has its own page, so the same use rules apply to lofts there. Before contract, a buyer's attorney should confirm which regime covers the unit and what the Certificate of Occupancy says; the DOB's Building Information System holds the certificate.
The SoHo-Cast Iron Historic District
The Landmarks Preservation Commission designated the SoHo-Cast Iron Historic District on August 14, 1973 (LP-0768). Streets named in that report include West Houston Street, Prince Street, Spring Street, Broome Street, Grand Street, Canal Street and Howard Street, with Greene Street, Mercer Street, Wooster Street, Crosby Street and West Broadway running through. Work that "affects the exterior" of a building in the district needs a Commission permit before it starts, and applications go through Portico (LPC applications). For an owner, that covers cast-iron fronts, window sash, storefront infill at the ground floor and anything added on a roof. A permit is needed whether the work is the board's facade project or one owner's window replacement.
The shared official area: SoHo-Little Italy-Hudson Square
The city's tax-lot file (PLUTO) lists 15,323 residential units on 1,133 lots in the SoHo-Little Italy-Hudson Square area (NTA MN0201), an official area that also takes in Little Italy, NoLIta and Hudson Square. Walk-up units make up 44.1%, condo units 21.7%, co-op units 13.9% and elevator rentals 12.1%, with mixed and other buildings at 7.3% and one- to three-family houses at 0.8% combined. Units in buildings from before 1940 account for 78.7%, from 1940 through 1979 for 3.5%, and from 1980 on for 17.8%.
Flood lines on the map
The Special SoHo-NoHo Mixed Use District intersects FEMA Zone AE on both the effective map (effective NFHL) and the preliminary map (preliminary NFHL), and it also touches 0.2%-annual-chance areas. For the wider official area, the preliminary map adds VE zones along its shoreline. The reliable answer for one building is its own address at the FEMA Flood Map Service Center; in a building with a cellar, ask what equipment is down there and whether it has taken water.
Stations inside the district
The MTA list (data.ny.gov) puts the Prince St (R W) station point inside the special district, along with the Canal St points for the R W, N Q, J Z and 6 lines. Within that Canal St complex only the 6 is flagged accessible, so check with the MTA. Elsewhere in the official area, the Spring St (C E), Houston St (1) and Canal St (1) points sit on its Hudson Square side, and Spring St (6) stands under Lafayette Street, outside the special district. ZIP-code tabulation areas 10003, 10012 and 10013 intersect the district (TIGERweb).
What a loft walkthrough covers, and what goes to the board
Loft floors converted from manufacturing use typically have a single electrical service feeding a long open plan, plumbing that travels sideways to reach a riser, and heating and cooling fitted in after the fact. Inside the unit, an inspection works through the panel and circuits, receptacles and lighting; the kitchen and bath fixtures with any exposed supply and drain lines; the big windows and their frames; the heating and cooling equipment that serves the loft; exhaust and ventilation; and stains or soft spots that show water coming from the floor above or through a party or street wall. Questions about the freight elevator, sprinklers, fire separations and the condition of the iron or masonry front go to the board and the building's filings, as do the budget and reserves.