LOS ANGELES—Four Southern California cities, led by Redondo Beach, have filed a legal challenge to Senate Bill (SB) 9, a state law that permits single-family lots to be divided for development of two to four houses.
The Los Angeles Superior Court petition was brought Tuesday against Attorney General Rob Bonta by the cities of Redondo Beach, Torrance, Carson, and Whittier, whose leaders want a court order finding the law in violation of the state constitution along with a prohibition on its enforcement.





