Ordinance amending the Planning Code to modify density limits in the Northeast Waterfront Historic District, the Jackson Square Historic District, and the Jackson Square Historic District Extension, except for projects in those areas using the Commercial to Residential Adaptive Reuse Program; affirming the Planning Commission’s determination under the California Environmental Quality Act; making public necessity, convenience, and welfare findings under Planning Code, Section 302; and making findings of consistency with the General Plan, and the eight priority policies of Planning Code, Section 101.1.