1. The Defendant’s KRW 603,734,736 as well as the Plaintiff’s KRW 5.83% per annum from January 1, 2013 to July 20, 2016.

. It is reasonable to return the portion of the construction cost. ② The defect in the part of the 2nd floor construction cost of the 10th floor planning, the 10th floor entrance of the policy headquarters was calculated on the basis of the construction cost executed by the Plaintiff and the Defendant on the basis of the final contract specifications, but the Plaintiff was not constructed on the instant building. Therefore, it is reasonable to return the portion of the construction cost of the 16th underground floor 5th floor 5th floor / [2] the difference in the 20th floor floor 1st floor / [32] the burden of increasing the number of the 2nd floor 10th floor / [30th floor / the 3th floor 20th floor / the 10th floor / the 16th floor / the 5th floor / the 16th floor / the changed portion of the construction cost to the Defendant’s 40th floor / the changed portion of the construction cost to the Defendant’s 80th floor / the final construction cost / the 300th floor / the difference between the Plaintiff and the Defendant 10000.