Ordinance amending the Planning Code to 1) permit additional commercial, retail, and restaurant uses on the ground floor in certain neighborhood commercial districts (NCDs) and residential districts; 2) principally permit Flexible Retail on the ground floor in certain NCDs and Chinatown mixed use districts; 3) principally permit Retail Professional Services uses on all floors and conditionally permit Non-Retail Professional Services on the ground floor in specified NCDs; 4) create regulations for music entertainment venues and non-profit theaters distinct from regulations for Bars; 5) allow Limited Corner Commercial Uses that are not Formula Retail in certain residential districts; 6) amend Section 311 to remove neighborhood notice requirements for changes of use in the Eastern Neighborhoods mixed use districts; 7) expand business types that qualify for the Planning Department priority review program and establish that the program will not apply in the North Beach NCD and North Beach Special Use District (SUD); 8) clarify that multiple allowable uses may co-locate on one site; 9) clarify and modify various other use regulations and processes; 10) permit additional retail and non-retail uses in specified NCDs; and 11) eliminate the Mission Street Formula Retail Restaurant Subdistrict; and affirming the Planning Department’s determination under the California Environmental Quality Act, making findings of consistency with the General Plan and the eight priority policies of Planning Code, Section 101.1, and making findings of public necessity, convenience, and welfare pursuant to Planning Code, Section 302.