SDCL § 7-25-13: Payment required if building occupied before acceptance.

It is further provided that in the event the board elects to use and occupy the public improvement before acceptance, the board shall pay all amounts due under the contract except double the amount the superintendent or architect shall estimate necessary to complete the improvement in accordance with the plans and specifications or one percent of the contract price, whichever is the greater, or in any event not less than three hundred dollars, and no interest shall be allowed thereon until sixty days after said work has been fully completed.