Digital documentation of heritage buildings - A case study of Sumenep Palace Building, Madura Island, Indonesia

The Sumenep Palace was built on land owned by Penembahan Somala in 1781. The development of the Sumenep Palace Building combines several elements of global architecture, namely Chinese, Arabic, European, and local architecture. Sumenep Palace is the only relic of the civilization of the Islamic empire that remains in East Java. It is full of history and reflects the noble values of the Sumenep people. The Sumenep Palace Complex was designated as a cultural heritage building on April 28, 2017. The Sumenep Palace building, which dates back hundreds of years, has suffered physical damage in some elements and has undergone several design changes that reduce its cultural authenticity. Sumenep Palace's cultural significance is thoroughly identified by classifying and detailing the information of each part or building element, strengthened by data from several sources, including the palace, historians, and the local government. In addition, categorizing the damage level of the building elements and their changes has also been carried out to help formulate recommendations for preservation techniques for the Sumenep Palace. This paper presented how multisource data from field observation combined with Building Information Modeling (BIM) was used to construct the 3D digital documentation of the Sumenep Palace building to support the heritage building preservation guidelines. The Light Detection and Ranging 3D scanner helped model intricate furniture and ornaments, where simple objects can use manual field measurement integrated with BIM software.