- 44.1 At least one side of all the rooms intended for human habitation, if such room does not abut on the front or the rear or the side setbacks, shall abut on an interior open space whose minimum dimension shall be 3 meters X 3 meters in cases of buildings up to a height of 12meters. In cases where the height of the building is more than 12meters, the width of the interior open space shall be increased at the rate of one meter for every additional 3 (three) meters height. This provision shall be applicable to all categories of buildings, like residential, group housing, commercial. institutional, administrative. assembly etc.44.2For ventilating the spaces for water closets and bathrooms ventilation shafts shall be provided with size as provided under clause - 8.2.5(b), Group 1, Part-3 of National Building Code of India as bye laws for ventilation shaft
