o2~ "except that where a lot with a width less than the required minimum existed om or before the effective date of this By-law, the required wet-back from an interior side lot line and from an exterior side lot Aine may be reduced to 10 percent and 20 percent respectively of the lot width, but in no case shall be less than 4 feet and 8 feet respectively. . —

4. Subsection (3) of Section 503 of the By-law is amended by adding the

following as clause (1):

“(4) shall not be permitted unless usuable Open space is provided

as set forth below:

400 square fect for each 3 bedroom unit 300 square feet for each 2 bedroom unit 200 square feet for each 1 bedroom unit 100 square feet for each bachelor unit 500 square feet for each group housing unit"

5. Clause (c) of Subsection (1) of Section 603 of the By-law is repealed and the following is substituted therefore: "(c) in the zones indicated shall be sited not less than the distance

from lot lines as specified in the following table:

LOT LINE . DISTANCE IN FEET FROM LOT LINE, BY ZONE : C-) C-2 C-3 G~4 CS-1 CS-2 CS-3

front 25 5 5 5 30 30 30 rear 20 interior side 40

exterior side 40 4*Not Required

except that: (1) for a SERVICE STATION USE, the distance from all lot lines shall not be less than 15 feet for a service station pump A4sland or canopy. in the C-2, C~-3, er C-4 ZONE where the storeys above the first storey are used for APARTMENT RESIDENTIAL USE, the distance from tha front and exterior cide Jot lines: shall

wot be less than 10 feet; the distance from the rear lot

line shall be not less than 20 feet; and the distance fron the interior side lot line for a wall with a window to a living room shall be not leas than 25 feet, for a wall with

a window to any other habitable room shall be not lesa than

15 feet,