Due to such factors as increasing production costs and shrinking domestic and foreign demand, Taiwan's sugar production industry has been in decline since the 1980s, and most of the many sugar refineries around the island have already ceased operations. These idle sugar refineries are home to a large number of historic buildings representative of an earlier era. Few of these buildings, however, have been properly assessed, and while their fate hangs in the balance they become increasingly dilapidated. Focusing on the dormitory complex of the Xinying Sugar Refinery, this paper begins by delimiting the topic, defining the research orientation, and analyzing related historical documents. It then goes on to present interviews carried out with relevant people and on-the-spot surveys conducted to determine which buildings are worth preserving. The paper concludes by offering suggestions relating to restoration principles and conservation strategies. In the course of carrying out a comprehensive evaluation of the Sinying Sugar Factory, it was discovered that the dormitory complex is a valuable architectural and cultural asset with a high potential for preservation and redevelopment. Thus it is imperative to actively seek assistance from relevant organizations and carry out preservation work without delay. Despite the urgency for new construction in urban areas, by making use of careful and detailed assessments it is possible to bring about the mutual coexistence of cultural heritage preservation and urban renewal. Such careful planning is an essential part of honoring the legacy of a traditional industry which has played a major role in Taiwan's economic development. Its effective implementation in line with global trends will transform Taiwan's historic sugar industry properties into an important part of Taiwan's cultural tourism industry.