1. The defendant's KRW 15,409,00 for each of the plaintiffs and its corresponding KRW 15,409,00 for the plaintiff A, and the plaintiff B.

1. Basic facts

A. Status of the parties and conclusion of the sales contract of this case 1) The defendant is the Incheon Metropolitan City (hereinafter referred to as "Macheon City").

) An area in a free economic zone (hereinafter referred to as “permanent area”)

(2) The apartment building of 1,628 units on the ground of 72,182,593 square meters of Cable block 72,182,593 square meters (hereinafter “instant apartment building”).

(2) On March 2, 2010, the Plaintiff entered into a sales contract with the Defendant with the content that the Plaintiff would sell the instant apartment building 110 dong 1101 and 110.446 m2, and the Plaintiff B would sell the instant apartment building 111 dong 1102 and 111.965 m2 on January 26, 2010, respectively to KRW 328,180,000 (hereinafter “instant sales contract”).

B. The location condition and sale period of the apartment site of this case 1) The Yeongdeungpo-do, which is an apartment site of this case, is located in the east-do, which is an island located in the Jung-gu Incheon, Incheon, and there is an airport new city around the Seo-do. The Young-do, which combines Young-do and Seo-gu, was opened in November 2000. The airport railroads in the section connecting the Incheon International Airport and Seo-gu Airport were opened in March 2007, and the Incheon National Housing Corporation and the Incheon National Housing Corporation were replaced by the title of the Incheon National Housing Corporation and the Incheon National Housing Corporation under the Act No. 203-19 of August 1, 2003, and the Incheon National Housing Corporation was replaced by the title of the Incheon National Housing Corporation and the Incheon National Housing Corporation under the Act No. 2065 of Incheon National Housing Corporation and the Incheon National Housing Corporation under the Act No. 97 of August 2, 2003.