Whenever the City Manager deems it necessary that any sidewalk be repaired, or it is required by Council, he shall notify the owner of the lot or piece of land along and contiguous to which such sidewalk is situated, to repair the same within twenty-four hours from and after the giving of such notice. Oral notice to the owner shall be deemed sufficient. If the owner is not found by the City Manager, then a written notice left in the house situated on such lot or piece of land, or posted upon the owner's premises, shall be sufficient, and the twenty-four hours shall begin to run from the leaving or posting up of such notice.
(1958 Code § 23.41)