This research describes why and how the 3D CityGML modelling standard can be used in real estate valuation and transaction applications. A practical use case in the real estate domain that that should utilize 3D instead of 2D data models, for more efficient and effective information exchange, is missing. Subsequently the process of developing a potential use case is missing as well. Previous studies have focussed on the use of 3D models primarily in the Architecture, Engineering and Construction (AEC) domain or described the potential use for large scale governmental property taxation. In this research the potential use of 3D city models predominantly in the real estate valuation and transaction domain is studied. This is achieved by examining why (3D) Geographic Information Systems (GIS) in real estate is used, and describing the state of the art. The relevant and technical use of 3D city models is established based up on professional opinions from real estate advisors and 3D modelling experts. Using 3D city models to visualise information per building storey was found to be one of the most relevant use cases. The process of developing this use case showed different complications mainly in enhancing a CityGML of Level of Detail 2 (LOD2) with building storeys (LOD2+). Using the CityGML extension capabilities an ADE is created that defines property rights information per building and storey. The research showed that the use of 3D models in practice is a whole new development, that requires a lot of demonstrable use cases and technical developments to increase the use in the real estate valuation and transaction domain.
The use of 3D city models in real estate valuation and transactions
- Author: T.P. Toppen
- Year: 2016