1. The defendant KM industry and Dongmun Construction Co., Ltd. are jointly and severally owned by the plaintiff 320,445,121 won and the plaintiff.

1. Basic facts

A. 1) The Plaintiff entered into each contract. The Plaintiff is the Plaintiff’s 722 households (5 Dong-dong, 290 Dong-dong, 4 Dong-dong, 432 Dong-dong, 4 Dong-dong, 5 Dong-dong, Gangdong-dong, 670 Dong-dong, Gangdong-gu, Seoul, and 432 Dong-dong, hereinafter “instant apartment”).

(2) On June 16, 2006, the Plaintiff entered into a contract on the construction work of the instant apartment (hereinafter referred to as “construction work of this case”) with Defendant K Industrial Co., Ltd. (Seoul Highway Co., Ltd., Ltd., Ltd., and Defendant Dongmun Construction Co., Ltd. (hereinafter “Defendant Dongmun Construction”), and entered into a contract on the construction work of the instant apartment (hereinafter “instant construction work”). On December 29, 2008, the Plaintiff entered into a modified contract on the said contract (hereinafter referred to as “instant construction contract”).

3) On February 5, 2008, the Plaintiff is a Defendant’s officer development corporation (hereinafter “Defendant’s officer development”).

B) The landscaping construction work of the apartment in this case (hereinafter “instant landscaping construction”) between the Plaintiff and the Plaintiff.

) the contract for the landscaping project (hereinafter referred to as the “instant contract for the landscaping project”).

B. The Plaintiff entered into a contract on July 13, 2009 with respect to the instant apartment. (B) The approval for use and defects of the instant apartment. (1) The Plaintiff obtained the approval for use of the instant apartment.

2) At the time of the construction of the instant apartment, the construction works of the instant apartment, including the Defendants, did not construct the part to be built in accordance with the design drawing, changed at will, or discovered a large number of defects arising from the construction of the apartment, or performed the defective repair works of the instant apartment at the request of the occupants of the instant apartment. However, the instant apartment had a defect in the instant apartment.

C. The plaintiff and the council of occupants' representatives of the apartment of this case 1) composed of the sectional owners of the apartment of this case and the management of the apartment of this case (hereinafter referred to as the "council of occupants' representatives").