Markham By-law 2017-26, s. 40(1) — Property Standards By-law

In addition to all of the requirements and minimum Standards for the maintenance, and security of Property set out in this Part III and elsewhere in this By-law, the Owner or Occupant of a Heritage Property shall:

• a) maintain, preserve and protect the Heritage Attributes so as to retain the heritage character, and the visual and structural heritage integrity of the building or structure; and
• b) maintain the Property, including those components of the Property that hold up, support or protect the Heritage Attributes in a manner that will ensure the on-going protection and preservation of the existing Heritage Attributes.