Excerpt from the Toronto Real Estate Board...

For the City of Toronto thus far, Open House Signs:

• "Cannot be placed on any centre median or centre boulevard.
  Signs are not allowed on medians or boulevards in the centre of roads.

• Must be at least 0.3 metres from the sidewalk and the road.  'Open house' signs must not be closer than 0.3 metres to the edge of the traveled portion of a road or a sidewalk.

• Cannot be affixed to a utility pole, tree, official sign, or other public property.

• Maximum size for 'open house' signs is 0.5 sq. m.  The by-law only stipulates the size of the sign area; it does not stipulate dimensions. Any dimensions can be used as long as the sign area is within the permitted size limits (e.g. .25 m x 2 m; .5 m x 1 m).

• 'Open house' signs may only be displayed during the hours of the open house and must be removed before dusk.

• 'Open house' signs must include the address of the property for sale or lease and the date of the 'open house'.  No minimum standards are stipulated (font size; location on sign; method of display/attaching to sign, e.g. sticker) for how the address and date should be displayed. Date and address can be displayed in a manner that is efficient and convenient for you. The rule is intended to allow the City to ensure that signs are only left out while an 'open house' is being conducted. The City has expressed concerns that some 'open house' signs have been left out overnight or for multiple days, even when no 'open house' is being held.

• Must not obstruct the view of any pedestrian or driver or interfere with vehicular movement.

All Signs

• Any temporary sign must not be closer than 29.5 feet from the nearest paved portion of an intersection or the edge of the nearest traffic control device.

• All temporary signs covered by the by-law (not just real estate signs) are required to be set back at least 29.5 feet from intersections and traffic control devices to ensure unobstructed views for vehicles and pedestrians."