N.Y. ADC. LAW § 3-505 : NY Code - Section 3-505: Street numbers

Search N.Y. ADC. LAW § 3-505 : NY Code - Section 3-505: Street numbers

a. Requirements. The owner, agent, lessee or
  other person in charge of any building in the  city  upon  a  street  to
  which street numbers of buildings have been assigned by the president of
  the  borough  in which such building is situated, shall cause the proper
  street number or numbers of such  buildings  to  be  displayed  in  such
  manner  that  the  street  number or numbers may at all times be plainly
  legible from the sidewalk in front of such building. The term "front" as
  used in this section shall  be  construed  to  mean  that  side  of  the
  building  which  faces the street on which the number or numbers of such
  building, or premises on which such  building  is  situated,  have  been
  allotted.  The number or numbers shall be displayed on such side of such
  building or premises. Each borough president shall  have  the  power  to
  establish  and enforce rules and regulations relating to the size, form,
  visibility and  location  of  street  numbers  in  accordance  with  the
  requirements of this section.
    b.  Violations.  If the owner, lessee, agent or other person in charge
  of any building in the city upon a street to  which  street  numbers  of
  buildings  have  been  assigned by the president of the borough in which
  such building is situated shall fail to display the proper street number
  of  such  building,  as  provided  in  the  foregoing  subdivision,  the
  president  of  the  borough  in  which  such  building is situated shall
  forthwith serve such person or persons with a copy of this section,  and
  if after thirty days' notice the owner, lessee, agent or other person in
  charge  of  such  building  shall  fail  or  neglect  to comply with the
  provisions thereof,  he  or  she  shall  be  subject  to  a  penalty  of
  twenty-five  dollars,  which shall be sued for and collected in the name
  of the city. Any person who shall continue any such offense shall pay an
  additional sum of five dollars for each day such offense shall continue.