Whether SDCL 11-4-5 is properly characterized as a consent statute or a protest statute.
Holding
SDCL 11-4-5 is a protest statute, not a consent statute.
Reasoning
The Court rejected the characterization adopted in State Theatre Co. v. Smith, which had treated SDCL 11-4-5 as a consent statute. The statutory text permits neighboring owners to file a written protest after the governing body has adopted a rezoning ordinance; if the protest meets the statutory threshold, the ordinance does not become effective. That is the operation of a reactive protest mechanism, not a requirement of advance consent.
The Court read SDCL 11-4-5 alongside SDCL 11-4-9. Section 11-4-9 expressly authorizes a municipality, in its discretion, to require written consent from affected owners before a proposed zoning ordinance is introduced. By using express consent language in section 11-4-9 but protest language in section 11-4-5, the Legislature created two distinct methods of limiting rezoning. This statutory contrast showed that section 11-4-5 was intended to be a protest statute.