2006 New York Code - Definitions.

 
    § 17-101. Definitions.  For the purpose of this article, the following
  terms shall have the following meanings:
    1. "Residential  structure" shall mean a one or two family dwelling or
  a  single  unit  of  a  multiple  dwelling,  including   an   individual
  condominium  unit  or  cooperative  unit,  which  is offered for sale or
  rental on or after January first, nineteen  hundred  eighty-one  by  any
  person  other  than  the  original  contractor  or  builder  of any such
  dwelling.
    2. "Heating and/or cooling bills" shall mean all bills rendered  by  a
  retail  vendor  for energy used for heating and/or cooling purposes in a
  residential structure, including any bills where the cost of energy used
  for heating and/or cooling purposes is not differentiated from the costs
  of energy used for any other purpose.
    3. "Lessor" shall mean any person who offers any residential structure
  for lease to the general public.
    4. "Seller" shall mean any person who offers a  residential  structure
  for sale to the general public.