New York Laws
Title 1 - Light and Air
177 - Rooms in Basements and Cellars.

(g) This subdivision is applicable only to buildings noted, classified
or recorded as such converted dwellings in the department prior to
January first, nineteen hundred sixty-six.
5. Notwithstanding any provisions of this section or of subdivision
five of section three hundred, an apartment or room in a cellar which
was occupied for living purposes at any time on or after October first,
nineteen hundred fifty-two may thereafter continue to be occupied for
such purposes until July first, nineteen hundred sixty-seven in
accordance with the conditions imposed by subdivision five of section
two hundred sixteen.