California's Duplex Revolution: Unpacking SB9, the California HOME Act

California's Duplex Revolution:
Unpacking SB 9, The California HOME Act

Thursday, July 20th, 2023
Helms Design Center

7:45 am - 9:30 am PST

Panel from 8:30 am - 9:30 am
Doors open at 7:45 for registration, breakfast and networking.

Read our Speaker Bios Here!

In 2021, the state legislature passed Senate Bill 9, which, according to the bill's strongest advocates and detractors alike, outlawed single-family zoning throughout California. The reality is a bit more subtle and complex. SB 9 permits homeowners--in most, but not all communities--to subdivide or redevelop their homes into duplexes, and it allows them to split their lots, potentially generating four units. While housing advocates cheer the potential to add density to communities and reduce the primacy of single-family homes, SB 9 has, thus far, been seldom used. It presents major challenges to homeowners (especially compared to ADUs), and many cities have been slow to draft and adopt guidelines. 

With over a half-million single-family lots, Los Angeles could add hundreds of thousands of units through SB 9. But, how many will it actually add? And at what cost and by what processes? Can "mom and pop" successfully become mini-developers, or will SB 9 conversions be left to speculators and developers? Please join WUF this month to discuss the promise and challenges of California's (potential) duplex revolution. 

Ross Fehrman, Senior Planner, City of Santa Monica
Daniel Gehman, Principal, Danielian Associates Architects + Planners
Seth Philips, Founder, ADU Gold 
Sean Phillips, Co-Founder, Homestead 

Thea Trindle, Principle Planner, Los Angeles Dept. of City Planning