Toronto : Règlement no 447, art. (d) — Chapter 447 Fences

If the gate is double gate:

• [1] Have one gate that is self-closing and equipped with a lockable, self-latching device located on the inside near the top of the gate or on the outside at least 1.5 metres above grade;
• [2] Have a second gate that is equipped with a lockable drop bolt that extends down into concrete, asphalt, or paving stones by a minimum of 25 millimetres;
• and [3] Be kept locked at all times, included keeping the lockable drop bolt in the locked position, except when the enclosed area is in use.