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Marjan

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BIM Models as Input for 3D Land Administration Systems for Apartment Registration

Conference paper (2021) - Marjan Broekhuizen, Eftychia Kalogianni, Peter van Oosterom

The growth of cities and the pressure on land worldwide leads to more complex and multilevel structures with different space interrelations. For the registration of complex spaces mostly 2D Land Administration Systems (LAS) are used, while a representation of space in 3D could provide a clearer insight. Concurrently, technological advancements rapidly improve methods to collect, create, visualise, register, store and disseminate 3D data. In this context, much research is now being carried out at the sources and data used as input in 3D LAS and the various methods for their collection. In this scene, the approach to reuse data from the design phase is gaining ground. Specifically existing Building Information Models (BIMs), usually encoded in the non-proprietary Industry Foundation Classes (IFC) format (EN ISO 16739:2018) are considered a promising source for 3D LAS. Previous research has shown promising results using BIMs as input for 3D LAS. However, the use of BIM/IFC-models from practice has not yet been tested adequately. This paper investigates the technical issues that are encountered when using real-world BIM/IFC-models as input for the registration of apartment rights in a 3D LAS and how that process can be improved. In the context of this paper, BIM/IFC-models are iteratively being validating against technical requirements. Five real-world BIM/IFC-models are collected. They are tested on the existence of IfcSpace, geometric validity, overlap and the ability to georeference the BIM/IFC-models. The results of these validation show that the collected BIM/IFC-models lack the ability to be georeferenced. Additionally most BIM/IFC-models did not contain IFCSpace, or reference to essential attributes for identifying legal units in the Dutch 3D LAS. Recommendations and guidelines are formulated to address these issues. The BIM/IFC-models are placed in a 3D LAS at conceptual level, in which the legal spaces are enriched with information of the Rights, Restrictions and Responsibilities (RRR’s) to those spaces in line with the LADM.