The Seattle City Council approved Ordinance 121055, establishing a new Affordable Housing Incentive Program (AHIP) for projects within designated Downtown zones including Downtown Mixed Commercial (DMC), Downtown Retail Core (DRC), Downtown Office Core 1 (DOC1), Downtown Office Core 2 (DOC2), and Downtown Residential Commercial (DRC) zones. This legislation aims to stimulate the production of affordable housing by offering increased development capacity, such as expanded floor area and height limits, and reduced parking requirements, to projects that incorporate affordable units. The ordinance further amends existing development standards within these Downtown zones to generally facilitate housing construction. It also integrates a new AHIP that will complement or, in some cases, supersede certain aspects of the existing Mandatory Housing Affordability (MHA) program for specific Downtown developments. The changes modify multiple sections of the Seattle Municipal Code, including those related to Floor Area Ratio (FAR) calculations and maximum structure heights in various Downtown districts.