The Starter Homes Act legalizes additional home types across all residential zones and allows more homes in existing neighborhoods near schools, jobs, and everyday amenities. Cities will be required to allow duplexes, triplexes, and fourplexes in at least one-third of existing residential areas and mixed-use buildings or multifamily homes, such as apartments or condos, in at least one-third of commercial areas. Building permit approvals will be standardized to reduce delays and uncertainty for families and builders. Additionally, the Starter Homes Act provides a menu of proven tools that cities with populations over 10,000 can choose from to expand housing supply.