1. The plaintiffs' claims are dismissed.

2. The costs of lawsuit are assessed against the plaintiffs.

1. Basic facts

A. A. On April 1983, 1983, a brick stringer, 903 square meters in Gangnam-gu, Seoul (hereinafter “the instant site”) and justing 3 colon families (299.04 square meters in size 1, 2, 3, 299.04 square meters in size, underground floor 279.87 square meters in size, 5 households in each floor; hereinafter “the instant apartment house”) were newly built on the ground of the Gangnam-gu Seoul Metropolitan Government Rbubro 903 square meters (hereinafter “instant site”). At the time, the instant apartment house was newly built by Act No. 3725,

4. Before the enactment of 10.10 and the enactment of 11.4.1, 1985, the relationship of each household of the instant tenement house is not prepared as one aggregate building register. ① The part of the building is prepared as the register of general buildings and owned part of its household and underground floor, ② the part of the land is divided into the land register as co-ownership by the owners of the instant tenement house. B. The Plaintiff purchased the first floor No. 103 of the instant apartment house on March 15, 1989. On November 24, 2005, the Plaintiff purchased the entire building and 30.71/869 shares among the instant building and the instant building site, and owned 31.79/869 shares among the instant building sites, and the Defendants individually own the building of the instant building and owned shares of the instant building site, and co-owners of the instant building site with the right-hand share of the building site in the Gangnam-gu Seoul Metropolitan Government.