The planning commission shall investigate the circumstances of each case and shall notify such parties, who may in its opinion be affected thereby, of the time and place of any public hearing which may be held relative thereto as required under its rules of procedure or of any public hearing required by this chapter.

(Code 1969, § 5.275; Code 1977, § 28-470; Ord. No. 23-Q, 9-28-1970)