Don’t say you weren’t warned!
Defining cultural heritage in this way has helped solve a long-time problem. From its inception in 1975 there was no definition of heritage in the opening section of the OHA. There is only a minimal definition of “property” at the beginning of each of the major parts of the Act telling you whether property means both real and personal property (Part II), or only real property, and whether real property includes buildings and structures (Parts IV and V) or not (Part VI).
Note 1: Sub-section 27 (1.2) says the municipal heritage register “may include property that has not been designated … but that the council of the municipality believes to be of cultural heritage value or interest…”