Section 24-508. Construction of sewers by the owners of private property

a.
  The owners of  private  property  at  their  cost  and  expense  and  in
  accordance with the provisions of section two hundred twenty-nine of the
  charter  may  construct sewers in the streets of the city by filing with
  the commissioner of environmental protection:
    1. Plans and specifications of such sewer;
    2. A duplicate copy of the contract for such construction, showing the
  cost thereof; and
    3. A satisfactory guarantee to such commissioner  of  payment  of  the
  expense of supervision of such construction. Upon his or her approval of
  such  plans,  specifications  and contract, the commissioner shall issue
  his or her permit for the construction of the proposed sewer.
    b. The commissioner of environmental protection thereupon  shall  file
  copies  of  the documents listed in subdivision a with the department of
  city planning, which shall forward  a  copy  within  five  days  to  the
  community  board  for  the  community  district in which the property is
  located, and to the appropriate borough board if the plans involve  land
  located  in  two  or  more  community districts. Such commissioner shall
  apportion the cost of construction, according to actual benefit, between
  the several parcels of property abutting on each side of  that  part  of
  the street through which the sewer is to be constructed.
    c.  Until  title  to  such  sewer  vests  in  the city of New York, as
  hereinafter provided, the commissioner of environmental protection shall
  grant permits for connection with such sewer only  to  those  owners  or
  occupants  of  the property abutting on that part of the street in which
  such sewer has been laid who shall prove payment to the party or parties
  who constructed and paid for such sewer of their proportionate  part  of
  the  cost and expense shall be paid without the addition of any interest
  charge. At such time as title to any such sewer shall vest in the  city,
  owners  or occupants of the property abutting on that part of the street
  in which such sewer has been laid who have not requested  permission  to
  connect  with  such sewer, and who have not made payment to the party or
  parties who constructed and paid for such sewer, shall have the right to
  connect with such sewer without payment of any  part  of  the  cost  and
  expense of such sewer.
    d.  Except  for the purpose of supervision, maintenance and use by the
  city in connection with its public sewer system,  such  sewer  shall  be
  deemed  the private property of the parties or party who shall have paid
  for its construction. When the owners of all the  property  abutting  on
  that part of the street in which any such sewer has been laid shall have
  paid  their  several  shares  of the cost of its construction, or when a
  period of seven years from the time of issuance of the  permit  pursuant
  to  subdivision  a hereof has elasped, whichever is earlier, it shall be
  the property of the city. The city in no event shall be liable  for  any
  part of the cost and expense of construction of any such sewer.
    e. It shall be unlawful for any person to represent to any prospective
  purchaser  of  property that a sewer constructed in any street is a city
  sewer unless such sewer shall have  been  constructed  by  the  city  in
  accordance  with  the  legally  adopted drainage plan of the city and/or
  accepted as a public sewer in accordance  with  the  provisions  of  the
  code.