Whenever a notice is given pursuant to the provisions of this code, unless different provisions are otherwise specifically designated, such notice may be given either by personal delivery thereof to the person to be notified or by deposit in the United States mail in a sealed envelope, postage paid, addressed to such person at their last known business or residence address as the same appears in the public records or other records pertaining to which such notice is directed. (1962 Code § 1-3.01)