What is SB9
What is SB9 and How Does It Impact ADU Construction? In California, the housing crisis has prompted significant changes in residential zoning laws, with Senate Bill 9 (SB9) leading the charge. SB9, which went into effect on January 1, 2022, allows homeowners to add additional dwelling units (ADUs) or split their single-family lot into two parcels. This legislation paves the way for up to four units to be built on what was once a single-family lot, creating more housing opportunities in residential neighborhoods across the state. SB9 is part of California’s ongoing efforts to address the housing shortage by easing restrictions on ADU construction. Unlike traditional ADU construction, which typically permits only one or two units on a single-family lot, SB9 allows homeowners to split their lot and build multiple units, making it easier to create multi-family housing. This legislation has made it possible for homeowners to maximize the potential of their property, increasing re...