AB 3040 (by David Chiu):

https://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201920200AB3040

This bill would authorize a city or county to include in its inventory of land suitable for residential development specified sites that contain an existing single-family dwelling unit, but that the city or county has permitted, or is proposing to permit, to contain 4 dwelling units as a use by right. The bill would require these sites to be identified to satisfy either the moderate or the above-moderate income regional housing need income level. The bill would require a city or county identifying a site pursuant to these provisions to include in its housing element a description of the development standards that enable the identified sites to be redeveloped at a higher density, as specified. The bill would authorize a city or county, instead of listing sites individually in its inventory of land suitable for residential development, to include a summary of the credits received if the list of sites is included elsewhere in the housing element.

SATT NOTE: This bill would make void and unenforceable any covenant, restriction, or condition contained in any deed, contract, security instrument, or other instrument affecting the transfer or sale of any interest in a planned development, and any provision of a governing document, that effectively prohibits or unreasonably restricts the construction or use of up to 4 primary dwelling units on a lot zoned for at least 4 dwelling units, as specified.