FOR HOMEOWNERS
California homeowners have more options than ever for flexible use of their home and property to bring in income or add more living space for family. In September 2021, Governor Newsom signed into law the California Housing Opportunity and More Efficiency (HOME) Act, or SB 9, as it's more commonly known. SB 9 continues the work that ADU laws began by providing more pathways to gently increase density in urban areas. Read on and download our guide to learn more.
What is a two-unit development?
Also called a duplex, a two-unit development is a single building that contains two dwelling units, or two single-unit dwellings on a single parcel.
Two-unit developments may be detached or part of the same building, but they must have their own:
Entrance
Cooking facilities
Bathroom
Heating/cooling systems
Utilities and meters
What is an urban lot split?
Under SB 9, an urban lot split is the subdivision of an urban parcel zoned single-family residential into two approximately equal parcels. (50/50% or 60/40%)
SB 9 Resources
SB 9 Guidance from Casita Coalition
SB 9 allows homeowners to use either the two-unit development option, the urban lot split, or both, to add more homes in our neighborhoods and help ease California’s serious housing crisis.
