1. The plaintiff's appeal is dismissed.

2. The costs of appeal shall be borne by the Plaintiff.

The purport of the claim and appeal is the purport of the appeal.

1. The reasons why the court should explain this part of the basic facts are the same as the corresponding part of the reasoning of the judgment of the first instance, and thus, they are cited in accordance with the main sentence of Article 420 of the Civil Procedure Act.

2. Judgment as to the plaintiff's primary claim

가. 원고 주장의 요지 원고는 이 사건 주택 공사를 완료하였으나 D으로부터 공사대금을 지급받지 못하여 공사대금채권을 피담보채권으로 하여 이 사건 주택의 출입구에 시정장치를 하고 유치권 행사 중임을 알리는 팻말과 현수막을 게시하는 등의 방법으로 이 사건 주택을 계속 점유하고 있으므로, 이 사건 주택에 관하여 위 공사대금채권을 피담보채권으로 한 유치권을 가진다.

B. Determination 1) The requirements for establishing a lien stipulated in Article 320 of the Civil Act, and the possession, which is the requirements for existence, refers to an objective relationship in which an object is deemed to belong to the factual control of the person in terms of social norms. At this time, factual control is not necessarily limited to physical actual control, but should be determined in accordance with the concept of society by taking into account the time and spatial relationship with the object, principal right relationship, possibility of exclusion from control of others, etc. However, in order for the object to be of such factual control to be of an objective relationship, at least the other person’s interference should be excluded (see, e.g., Supreme Court Decisions 2002Da34543, Jul. 25, 2003; 207Ma1602, Mar. 27, 2008); since such possession is the requirements for establishment of a lien, the right holder still has to possess the object of the lien, and if he loses his possession, he shall continue to exist in accordance with the above legal principles.