The recent advances of surveying and mapping technology has made the collection of 3D information increasingly easier. A variety of real-world phenomena nowadays can be modelled in a realistic way, which enables the development of many innovated applications (Liu Wei Zhe, 2020). Due to the rapid expansion of urban population and limited land resources, the effective management of the right and property of buildings has been considered as one important mission to the digital cadastre. Especially when more and more tall buildings were built in the urban area, modern 3D modelling strategies considering vertical dimensions appears to be an obvious choice for the future cadaster systems. Developing 3D cadastres is therefore widely recognized as an urgent issue for many countries (Zeng Zis Han, 2022). To meet the modelling and encoding demands of city phenomena, CityGML (City Geographic Markup Language) from Open Geospatial Consortium (OGC) has been successfully used to improve the cross-discipline interoperability with its pre-defined and standardized schema (Löwner, Gröger, Benner, Biljecki, & Nagel, 2016). Nowadays, many 3D building datasets around the world are distributed with CityGML (OGC, 2021a). Land Administration Domain Model (LADM) provided a standardized schema for the management of building property rights (Lemmen, van Oosterom, & Kalantari, 2018), which includes contents about party, administrative units and the right, responsibility and restriction between them. The combination of a 3D model and property rights brings great benefits to the development of 3D cadaster (Surmeneli, Koeva, Zevenbergen, & Alkan, 2020), for example, realizing the size and the location of the legal space. Various research has been focusing on the advantages of integrating these two standards. Rönsdorff et al. (2014) proposed a CityGML ADE to model the legal space; Góźdź et al. (2014) proposed a CityGML-LADM ADE model to describe the relationship between the legal and physical representation of selected objects. Nega & Coors(2022) suggested the integration of LADM and CityGML can be used to deal with the problems of overlapping ownerships in buildings, and can be further applied in many scenarios which need to distinguish the legal and physical space. LADM can effectively model the legal and management aspect about buildings, but more discussion about the 3D geometric representation, as well as the links to the various 3D building information, e.g., BIM, 3D mesh model, are still necessary. By considering the regulation, management systems and building characteristics of Taiwan, this research discusses the design strategies for developing a prototype of 3D cadastre system for Taiwan using CityGML and LADM. Although the current result is still preliminary and the modelling scope is limited, we believe it can serve as the basis for further profile development of a complete 3D cadastre system that not only meets the demands of cadaster related application, but also provide a solid reference for the use of land information in smart cities applications.