Youngblood v. Board of Supervisors of San Diego County

San Diego County's Board of Supervisors (defendant) approved a tentative subdivision map on December 10, 1974, consistent with the general plan then in effect. Three weeks later, the county amended its general plan to limit density in that area, so by the time the Board approved the final map on October 25, 1975, the subdivision no longer matched the current plan. Neighboring residents (plaintiffs) sued, arguing both approvals were unlawful and that the county should have been forced to rezone the area to match the new plan; the trial court upheld the Board's decisions.

Whether, under subdivision law, a final map must be approved when the subdivider has complied with all conditions and the map conforms to a properly approved tentative map that itself conformed to the general plan existing at the time of its approval.