S.D. Codified Laws § 10-6-144
Property classified pursuant to § 10-6-143 shall be valued for taxation purposes in the usual manner. However, the board of county commissioners of the county where the property is located may, in the board's discretion, adopt any formula for assessed value to be used for tax purposes. The formula may include for any or all of the five tax years following the filing of the plat for the subdivision all, any portion or none of the assessed valuation for tax purposes. The assessed valuation during any of the five years may not be less than the assessed valuation of the property in the year preceding the first year of the tax years following the filing of the plat for the subdivision. The board of county commissioners of a county where property classified pursuant to § 10-6-143 is located may, in the board's discretion, if requested by the owner of the property, not apply the discretionary formula and the full assessment shall be made without application of the formula. In waiving the formula for the property of one owner, the board of county commissioners is not prohibited from applying the formula for subsequent property.
SDCL 10-6-144