Section 25-405. District plan

(a) The mayor may provide for the preparation of a district plan, upon
  his  or her own initiative, or at the request of an individual or agency
  designated by him or her, or at the request of the city council, or upon
  the written petition, signed and acknowledged, of (1) the owners  of  at
  least  fifty-one  percent  of  the assessed valuation of all the taxable
  real property  within  the  boundaries  of  the  district  proposed  for
  establishment   or   extension,  as  shown  upon  the  latest  completed
  assessment roll of the city, and (2) at least fifty-one percent  of  the
  owners  of  real  property  within  the  area  included  in the district
  proposed for the establishment or extension.
    (b) The establishment or extension of a district shall be  based  upon
  the  district  plan  filed  in  the  office of the city clerk, except as
  provided in subdivision (c) of this section.
    (c) The district plan shall first be submitted to  the  city  planning
  commission  which  shall  forward  a  copy  within five days to the city
  council and to the council member or members  representing  the  council
  district  or districts in which the proposed district is located, to the
  community board or boards for the community  district  or  districts  in
  which  the  proposed  district is located, and to the respective borough
  board and borough president, if the plan involves properties located  in
  two  or  more community districts. Each community board shall notify the
  public  of  the  proposed  plan  in  accordance  with  the  requirements
  established  by  the  city planning commission, and may conduct a public
  hearing and  submit  a  written  recommendation  to  the  city  planning
  commission  not  later  than  thirty days after receipt of the plan. The
  city planning commission shall review the plan and recommendations, and,
  after a public hearing, prepare a report. The city  planning  commission
  shall submit its report to the mayor, to the affected borough president,
  to  the  city  council and to the council member or members representing
  the council district or districts in  which  the  proposed  district  is
  located,  together  with  copies  of  any  recommendation of a community
  board, within sixty days from the date of expiration  of  the  community
  board's  period  for  reviewing the plan and submitting recommendations.
  This report shall certify the  city  planning  commission's  unqualified
  approval,  disapproval  or  qualified  approval with recommendations for
  modifications of the district plan. A copy of this report together  with
  the original district plan shall be transmitted for filing with the city
  clerk.  In  the  event the city planning commission shall fail to submit
  its report within ninety-five days of receipt of the  original  district
  plan,  it shall be required to immediately transmit the original plan to
  the city clerk for filing and no report of the city planning  commission
  shall be necessary.
    (d)  All  district  plans  shall conform with the requirements of this
  chapter. The mayor may determine that the plan or any part of the  plan,
  shall  be  prepared  by,  or  under the supervision of city officers and
  employees to be designated by the mayor, or by persons or  firms  to  be
  employed for that purpose. Except as otherwise provided in this chapter,
  the expense incurred for the preparation of the plan or part of the plan
  shall be a city charge.
    (e)  If  the city shall thereafter establish or extend the district or
  provide the improvements or additional  services  or  contract  for  the
  required  services, the expense incurred by the city for the preparation
  of the plan or any part of the plan shall be deemed to be  part  of  the
  cost  of  the  improvement, or the rendering of additional services, and
  the city shall be reimbursed in the amount paid, or the portion of  that
  amount which the city council, at a public hearing held pursuant to this
  chapter, shall allocate against the district.