Newmarket : Règlement no 2017-62, art. 36.1 — Property Standards By-law

Every Habitable Room in a Dwelling except a kitchen shall contain an outside window or windows which shall be maintained in good repair, and which shall:

• 1) have a total light transmitting area of not less than 10 percent of the floor area in living room and dining room and have a total light transmitting area of not less than 5 percent of the floor area in bedrooms and other finished rooms;
• 2) when designed to open, be easily opened and closed at all times and the area of the openable portion shall comply with the requirements of the Ontario Building Code;
• 3) be provided with proper and suitable hardware and effective locking devices so as to properly perform their intended function. 4) have the total light transmitting area of the window wells counted in the calculations referred to in article 4.11.1 (1) provided that one half of the area of such windows is above the top of the window well. Where less than half the light transmitting area of a window is above the top of a window well, only that area of the window above the top of the window well may be counted in the calculations.