1. Nothing in these Zoning and Property Chapters shall be deemed to prevent the restoring to a safe condition of any building or part thereof declared to be unsafe by any official charged with protecting the public safety, upon order of such official.
2. Any use of land, use of structures or structures, in existence on the effective date of the ordinance from which these Zoning and Property Chapters derive which was not an authorized nonconformity under previous zoning ordinances shall not be authorized to continue its nonconforming status pursuant to said chapters or amendments to said chapters.