S.D. Codified Laws § 5-12-42
Improved or unimproved land held by or transferred to the Building Authority pursuant to § 5-12-10, may be leased and the improvements thereon sold to a person, partnership, association, limited liability company, or corporation. The improvements may be sold only at their fair market value as determined by the authority, but consideration for a land lease may be nominal. The authority shall obtain and consider when determining the fair market value of improvements to be sold, at least one independent appraisal. The proceeds of sale shall be paid to the Building Authority trust account and shall be applied to such purpose, if any, as may be required by the State Constitution or any contract of the state. If no specific disposition of the proceeds, including any investment income thereon, or any portion thereof is required by the Constitution or any state contract, the proceeds, including any investment income thereon, shall be used in or expended for the acquisition of land, buildings, water development, or other improvements of a capital nature as the Legislature or the special committee created in § 4-8A-2 and Governor may specifically direct. Contracts of the state shall include any contract now in existence and any contract entered into in connection with any sale hereunder and the lease-back of the improvements sold pursuant to § 5-12-43. Except as provided in chapters 5-6 to 5-8, inclusive, all leases and sales of land and improvements may be made without reservation of timber, mineral, or other similar rights.
SDCL 5-12-42