Section 35. Entrance doors and lights

In every multiple dwelling erected
  after April eighteenth, nineteen hundred twenty-nine, every door  giving
  access  to  an  entrance hall from outside the dwelling shall contain at
  least five square feet of glazed surface. The width of every  such  door
  shall be at least seventy-five per centum of the required clear width of
  such  entrance  hall  as  provided  in section fifty, except that when a
  series of such entrance doors is provided their  aggregate  clear  width
  shall  not be less than seventy-five per centum of the required width of
  the entrance hall and the clear width of each of  the  doors  separately
  shall  be  at  least  two  feet six inches.   Such a door opening upon a
  street or a court extending to a street may be  of  wood.  Such  a  door
  opening  upon  a yard or upon a court not extending to a street shall be
  fireproof.
    The owner of every multiple dwelling  shall  install  and  maintain  a
  light  or lights at or near the outside of the front entrance-way of the
  building which shall in the aggregate provide not less than fifty  watts
  incandescent   illumination  for  a  building  with  a  frontage  up  to
  twenty-two feet and one hundred watts incandescent  illumination  for  a
  building  with  a  frontage  in excess of twenty-two feet, or equivalent
  illumination and shall be kept burning from sunset every day to  sunrise
  on the day following. In the case of a multiple dwelling with a frontage
  in  excess  of twenty-two feet, the front entrance doors of which have a
  combined width in excess of five feet,  there  shall  be  at  least  two
  lights,  one  at  each  side  of  the  entrance  way,  with an aggregate
  illumination of one hundred fifty watts or equivalent  illumination.  In
  enforcing this provision the department shall permit owners to determine
  for   themselves   the   actual  location,  design  and  nature  of  the
  installation of such light or lights to meet  practical,  aesthetic  and
  other  considerations,  so  long as the minimum level of illumination is
  maintained.