Cal. Gov't Code § 66499.40
(b) A small home lot development for purposes of this section is a development that meets all of the following requirements:
(3) The proposed development will, pursuant to the requirements of this division, meet one of the following, as applicable:
(11) The development of a housing development project on the proposed site to be subdivided does not require the demolition or alteration of any of the following types of housing:
(c)
(2) A local agency shall not impose any of the following requirements on a small home lot development:
(e) For purposes of this section:
(g) A city, county, or city and county shall approve an application for a small home lot development unless it makes one of the following findings: