7.5.17 Non-conforming Structures. Except as provided in this section, a non-
7.5.17 Non-conforming Structures. Except as provided in this section, a non- conforming structure or use may not be enlarged, increased in size, or discontinued in use for a period of more than one hundred eighty (180) days. This by-law shall not be interpreted to legalize any structure or use existing at the time this by-law is adopted -74- which structure or use is in violation of the zoning by-law prior to enactment of this section.