(4) LOT COVERAGE: (a) The maximum lot coverage is 35%, provided that where required off-street parking is constructed within a building, including an underground structure, the maximum lot coverage is increased by the proportion of the required parking so provided, multiplied by 0.25, to a maximum lot coverage of 602%. (b) Where surface parking, including aisles and driveways, is provided outside a building, including an underground structure, it shall not cover more than 15% of the lot. (c) Underground structures may occupy up to 95% of the lot surface, subject to compliance with all other provisions of this bylaw. (5) FRONT YARD: (a) On lots of an area of 1,700 m2 (18,300 sq. ft.) or less, a front yard of not less than 7.5 m@ (24.60 ft.) in depth is required. (b) On lots having an area greater than 1,700 m (18,300 sq. ft.) a front yard is required in accordance with the following table: Width of Building Required Front as percent of Lot Width Yard Depth over 502 -) x height of building 41Z% to 50% . -45 x height of building 31% to 50% -4 x height of building 20% to 302% -35 x height of building less than 20% 3 x height of building provided that in no case shall the front yard be less than 7.5 m (24.6 ft.) in depth. (6) REAR YARD: (a) For buildings not exceeding six storeys in height, a rear yard is required of not less than 7.5 m (24.6 ft.) in depth. (b) For buildings exceeding six storeys in height, a rear yard is required in accordance with the following table: Width of Building Required Rear as percent of Lot Width Yard Depth over 502% 5 x height of building 41% to 502% 45 x height of building 31% to 50% -4 x height of building 20% to 30% .35 x height of building less than 202 -3 x height of building provided that in no case shail the rear yard be iess than 7.5 m (24. earn 2540 6 7