This 3 in 1 program is designed to involve three important parties, namely senior lecturers (professors) from international institutions, course lecturers, and practitioner lecturers who collaborate to produce teaching, practice, and research. In other words, this program is specifically designed to combine a study of theory classes, simulation classes, and architectural preservation practice studios. In this 3 in 1 program, the Nusantara Architecture Laboratory collaborated with Prof. Dr. Kuan-Tsung Chang, lecturer at the Department of Civil Engineering and Environmental Informatics, Minghsin University of Science and Technology (MUST) Taiwan; Sin Da Tsai, who works at Strong Engineering Consulting Co. Ltd as a licensed survey expert; and Eko Ariefiyanto, who is a survey worker at the Cultural Heritage Preservation Center (BPCB) of Central Java Province. This activity consisted of a series of guest lecture webinars, workshops, and collaborative discussions moderated by the Head of the Archipelago Architecture Laboratory FTUB, Dr.techn Ir. Yusfan Adeputera Yusran, as well as involving teaching lecturers from the Archipelago Architecture Compartment and 5th semester students. This activity takes place from September to November 2022. The final result expected through this series of activities is research collaboration related to the field of architectural preservation, with the topic of regional visual engineering heritage.