An application and preliminary plan shall be submitted by the developer to the Commission for all proposals for multi-family, business and industrial developments or subdivisions involving open spaces for common use or extensions of public facilities. All procedures, maps, plans and other data required by these regulations for preliminary plans and set forth in Section 1171.02 shall be complied with and furnished if determined applicable by the Commission.
Where streets or other areas are intended to be used by the public and public utilities are to be constructed, all procedures, maps and other data required by these regulations for final plats as set forth in Section 1171.03 shall be complied with and furnished if determined applicable by the Commission.