Section 20(20)(d) in U.P. Housing and Development Board Regulations, 1982
(d)Balcony - Projected balcony in the front side at first floor level of width not more than 0.9 m. maybe permitted 50 per cent of the area of the projections permitted into open spaces under (c) and (d) above shall be accountable for floor area calculations.20.1.2. Interior open space.