Due to various reasons, incomplete design, construction, and other materials may result in the inability to complete the completion acceptance procedures for the completed house, or even though the materials are complete, the house may be delivered for use without completing the acceptance procedures. The inspection and evaluation of such houses are generally carried out for the purpose of completing the acceptance procedures or obtaining the property ownership certificate. In addition to routine safety testing and evaluation, the focus is on testing the construction quality of building projects, including component section deviation, verticality, flatness, surface defects, concealed works such as steel bars, material strength, etc; When the drawings are incomplete, necessary architectural and structural drawings need to be surveyed.