Homeowners in Southern California are starting to take advantage of a state law that allows lot splitting and higher density in residential areas in an effort to increase housing supply and affordability.
Three years after a law allowing lot splitting was passed in California, San Diego is starting to see its effects as homeowners sell off or build on previously unused parts of their properties.
According to a KPBS article by Andrew Bowen, “SB 9, or the California HOME Act, allows homeowners to split their lots in two and build up to two homes on each parcel — even if local zoning restricts the property to a single detached house.”
The bill’s passage in 2021 was considered a victory for housing advocates who want to lower barriers to building more housing, but cities and homeowner groups continue to fight the law in courts and through more creative means.
“It does take a while for the general public to know about the law, and for planning departments to adjust to state laws,” says Muhammad Alameldin, a policy associate at UC Berkeley's Terner Center for Housing Innovation. For the law to make an impact on the housing supply, builders who specialize in small-scale infill can help homeowners understand the process and access resources to lower the costs of construction, Bowen writes. Cities including Sacramento and Los Angeles are also working to eliminate barriers and reduce costs for homeowners in other ways, such as issuing pre-approved plans for accessory dwelling units (ADUs).
FULL STORY: Three years into California duplex law, San Diego homeowners start to cash in
Seattle Legalizes Co-Living
A new state law requires all Washington cities to allow co-living facilities in areas zoned for multifamily housing.
NYC Officials Announce Broadway Pedestrianization Project
Two blocks of the marquee street will become mostly car-free public spaces.
The City of Broken Sidewalks
Can Los Angeles fix 4,000 miles of broken sidewalks before the city hosts the 2028 Olympic Games?
Study: Automobile Dependency Reduces Life Satisfaction
Automobile dependency has negative implications for wellbeing. This academic study finds that relying on a car for more than 50 percent of out-of-home travel is associated with significant reductions in life satisfaction.
San Diego School District Could Accelerate Workforce Housing Program
A proposal to build housing on five district-owned properties could yield 1,000 housing units for low- and moderate-income district employees.
Denver Transit Board Approves $1.2 Billion Budget
The 2025 budget for the Regional Transportation District is the largest in the agency’s 55-year history.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
Alamo Area Metropolitan Planning Organization
Village of Glen Ellyn
City of Laramie
American Planning Association, Sustainable Communities Division
HUDs Office of Policy Development and Research
City of Cambridge, Maryland
Newport County Development Council: Connect Greater Newport
Rockdale County Board of Commissioners