1. The Defendant’s KRW 2,729,009,067 and KRW 493,415,742 among the Plaintiff’s KRW 2,729,067 and the Plaintiff’s KRW 1,965,562.

1. Basic facts

A. Status 1 of the parties concerned) The Plaintiff is an apartment of the Gu A Apartment-gu (hereinafter “instant apartment”) during Ansan-si.

(2) The Defendant is a project proprietor who newly constructed and sold the apartment of this case, and the Defendant’s Intervenor entered into a contract with the Defendant and newly constructed the apartment of this case.

B. 1) The instant apartment building had undergone a pre-use inspection on March 19, 2012, and around that time, each of the instant apartment buildings was sold to the sectional owners, and each of the relevant households was delivered to the sectional owners. 2) In the process of constructing the instant apartment, there was a defect such as rupture and water leakage in the public and exclusive areas for use by failing to construct the construction in accordance with the design drawing, or performing the construction in a way different from the design drawing or defective from the design drawing, and the Plaintiff demanded the Defendant to pay the Defendant several times from January 15, 2015.

3) Although some defects of the apartment of this case were repaired, there still remains the same defects as indicated in the table of defects in the section for common use, the table of defects in the section for common use by annexed Table 1 (hereinafter “instant general defects”) and the defect in the pipeing pipe of the section for exclusive use (hereinafter “the defect in the pipeing pipe of this case”). In order to repair the general defect of this case, the costs of the same amount as indicated below [Attachment 1] are the cost of repairing the defect of this case (this part is the standard, and even if there are items that are not determined separately below, the defect repair cost is calculated by reflecting the results of the correction and supplementation as to the method of repairing the difference arising from the apartment of this case, the Ministry of Land, Infrastructure and Transport’s announcement, the calculation of the cost of investigating the defect of multi-family housing, the calculation of the cost of repairing the defect and the determination of the defect.