Vehicle Code section 515

A “residence district” is that portion of a highway and the property contiguous thereto, other than a business district, (a)upon one side of which highway, within a distance of a quarter of a mile, the contiguous property fronting thereon is occupied by 13 or more separate dwelling houses or business structures, or (b)upon both sides of which highway, collectively, within a distance of a quarter of a mile, the contiguous property fronting thereon is occupied by 16 or more separate dwelling houses or business structures. A residence district may be longer than one-quarter of a mile if the above ratio of separate dwelling houses or business structures to the length of the highway exists.

Source: Section 515, https://leginfo.­legislature.­ca.­gov/faces/codes_displaySection.­xhtml?lawCode=VEH§ionNum=515.­ (updated Jan. 1, 1959; accessed Jun. 25, 2025).

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Verified:
Jun. 25, 2025

§ 515's source at ca​.gov