Notice requirement. Written notice shall be given to the applicant, the Code Enforcement Officer, Township Planning Commission, Zoning Hearing Board, Board of Commissioners and to any person who has made timely request for the same. In addition, written notice of the public hearing shall be conspicuously posted on the affected tract at least one week prior to the hearing. Where the affected tract has more than 300 feet frontage on a street, written notice shall be posted at intervals of not less than 200 feet. In addition, notices by regular first class mail shall be sent to all residences, property owners and properties within 1,000 feet in RA, RB and RC Zoning Districts and within 500 feet in all other zoning districts.