Ottawa : Règlement no 2016-326, art. 143(2) — Permanent Signs on Private Property By-law

Despite subsection (1), a mural may be permitted:

• (a) if the records of the City’s Heritage Services Section indicate that the wall the building or structure has been painted prior to the designation or listing of the building or structure; or
• (b) the mural is painted on or applied to a surface such as plywood or canvas that is attached to the wall of the building or structure and, where applicable, is fastened into the mortar joints and not through the brick or masonry itself.