Ordinance amending the Planning Code to 1) principally permit certain non-retail sales and service uses, including general office, design professional, business services, non-retail professional services, and trade offices, on the ground floor in the C-3 (“Downtown Commercial”) Districts through December 31, 2030, after which such uses will be conditionally permitted, and make accompanying revisions to required ground floor uses and Floor Area Ratio; 2) principally permit retail sales and service uses on the second floor and above in the RC (“Residential-Commercial”) Districts; 3) principally permit non-retail sales and service uses on the second floor and above, and conditionally permit catering and laboratory uses on the ground floor in the RC Districts; 4) update transparency and fenestration requirements for ground floor actives uses and exempt child care facilities, homeless shelters, mortuaries, religious institutions, reproductive health clinics, and school uses from those requirements; 5) modify the definition of a Window Sign; 6) modify Planning review and approval of changes in copy of a Sign and Wall and Window Signs applied to doors, windows, or building facades; 7) modify the definition of a Non-Residential Use for the purposes of certain development impact fee waivers; and 8) modify permitted and required ground floor uses in the RH-DTR (“Rincon Hill Downtown Residential”) District, including uses in certain historic buildings, subject to various conditions; affirming the Planning Department’s determination under the California Environmental Quality Act; and 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.