ABSTRACT
Efficient land development is vital for ensuring the sustainability of urban areas, and land administration plays a key role in this process. To implement the land use planning operatively, the geodata representing the spatial plans with the objects and attributes should be provided and reused as a way to ensure lossless data transformation between different applications and systems. This can be achieved by standardising the datasets. For purposes such as urban area simulations and unambiguously representing the cadastral rights, restrictions, and responsibilities (RRRs), the use of three-dimensional (3D) geoinformation enables more elaborate visualisation and a semantically richer data foundation for realising helpful spatial analysis in 3D. This chapter therefore provides a CityJSON extension for modelling of 3D spatial plans and demonstrates its usability by creating a 3D CityJSON dataset based on the extension. It also illustrates how exemplary buildings can be enriched semantically using the created plan data. These results can serve as a foundation for efficiently sharing 3D spatial plans in an interoperable and standardised manner.
