Inadequate information that represent the existing figure of the building after transmission of years and the eagerness of the Malaysian’s architect to develop frantically modern development design that gradually neglecting the essence of cultural perseverance of the heritage building has been brawled excessively. Taking a human – factor constraint to conducted the physical survey, the technologies such as computers and digital media have given beneficial value that are time saving and less risky. Hence, the research aim for the development of the as-built drawing for Masjid Alwi, Kangar, Perlis has been completed via UAV application and 3D laser scanner, and results were recorded on the structural and architectural properties of Masjid Alwi that has been analyzed accordingly. Therefore, the needs of having an adequate as-built drawing due to the depletion of the ancient documentation and as a baseline for the designer maintaining the cultural identity in a way to design new development is imperative and possible with the aid of UAV application and 3D scanning.
