In 2021, SEAMS took on a significant commission from the museum department within the Office of Cultural Affairs of the Special Region of Yogyakarta. The task at hand involved the development of the Detailed Design Engineering (DED) alongside crafting a compelling storyline for the Ketandan Peranakan Museum.

The primary objective of the Storyline Study and Spatial Arrangement activities was to scrutinize the existing interpretations and narratives within Rumah Ketandan. The focus was on assessing how well these interpretations conveyed the heritage values of the site. The study delved into the intricate details of how the storyline could engage visitors, offering them a distinctive and meaningful experience.

This comprehensive study sought to explore avenues for integrating Peranakan Ketandan's interpretation into the city's tourism offerings. Beyond this, the project aimed to contribute to the preservation of the history and culture of the Ketandan area. A key aspect was optimizing available resources to craft a compelling narrative that imparts a deeper understanding of the Ketandan locality.

Ketandan House, situated in the heart of Yogyakarta City, east of Jalan Malioboro, holds historical significance in economic development for the Yogyakarta Special Region. Linked to the World Heritage nomination attribute of Ketandan and Beringharjo Market, as well as the Philosophy Axis and multicultural history of Yogyakarta, including the Peranakan Chinese community, Ketandan House stands as a cultural landmark.

The house, once the residence of Tan Jin Sing, also known as Kanjeng Raden Tumenggung Secodiningrat, played a crucial role in Yogyakarta's history. As Captain of China in Kedu and Yogyakarta, Tan Jin Sing served as a community leader, tax collector, and even held the position of Regent of Yogyakarta. The narrative surrounding Ketandan House encapsulates a rich tapestry of cultural, historical, and architectural significance.

Undergoing revitalization by the Special Regional Culture Service since 2018, Ketandan House has seen functional transformations, from a residence to a cultural space and currently serving as the Center for Management of the Philosophy Axis Area (BPKS). Recognizing the profound significance and strategic location of Ketandan House, the Study of the Storyline Concept and Home Spatial Arrangement becomes imperative for recommending its optimal utilization.

This comprehensive review adheres to interpretive approaches outlined in the Charter ICOMOS on the Interpretation and Presentation of Cultural Heritage Sites (2008), Hoi An Protocols for Best Conservation Practice in Asia (2005), and incorporates national and local interpretation methodologies. The outcome of this study will not only enhance the cultural and historical experience for visitors but also contribute to the sustainable preservation and utilization of Ketandan House as a vital cultural asset in Yogyakarta.