Under the Subdivision Map Act, the creation of legal parcels prior to 1972 requires more than a deed referencing multiple lots—only a conveyance that separates a portion of land from contiguous property creates a new legal parcel. Cox v. City of Oakland, 17 Cal.5th 362 (2025).

The First District Court of Appeal held that a single deed conveying four or fewer contiguous lots can qualify for a presumption of legality under section 66412.6(a) of the Subdivision Map Act so long as the lots are separately described (including by reference to an antiquated subdivision map) and all other requirements of section 66412.6(a) are satisfied.