Ottawa By-law 2016-326, s. 120(a) — Permanent Signs on Private Property By-law

a message centre must only be on a property having a minimum frontage of 45 m on the frontage where the message centre is located;

• (b) unless otherwise specified, there must be a minimum setback of 18 m from the message centre to the nearest intersection of two public street lines, which includes the natural extension of lot lines on a corner lot, having traffic signal heads;
• (c) there must be a minimum setback of 60 m from another ground sign incorporating a message centre or from a digital billboard, where the signs are facing the same oncoming traffic; and
• (d) unless otherwise specified, a message centre must not be located on a property with or within a 30 m radius setback from a building or structure designated under Part IV or V of the Ontario Heritage Act or a building shown on the City’s Heritage Register.