AN ORDINANCE AMENDING SECTION 4 OF THE ZONING PLAN COMPRISING PORTIONS OF THE DISTRICTS OF TONDO, STA. CRUZ, BINONDO, QUIAPO AND SAMPALOC, UNDER SECTION 2 OF ORDINANCE NO. 2830, OTHERWISE KNOWN AS THE ZONIFICATION ORDINANCE, AS AMENDED, BY CONVERTING THAT PORTION OF DAPITAN STREET, BETWEEN DOS CASTILLAS AND CAROLA STREET, SAMPALOC, FROM "RESIDENTIAL ZONE" TO "COMMERCIAL ZONE".