Document Type : Original Research Paper
Authors
Department of Surveying Engineering, Faculty of Civil, Water and Environmental Engineering, Shahid Beheshti University, Tehran, Iran
Abstract
Background and Objectives: In recent years, with the development of urbanization and the construction of apartments and complex buildings, the importance and necessity of 3D data, especially in the real estate information sector, has been given more attention. Building Information Modeling is a new technology in the construction industry that is used to create, manage and share a digital model of a building, its components and related information. In addition to increasing interoperability and collecting all building information and documents in a single model, by adapting the building information model and the structure whose construction has been completed, it can be used for demarcation purposes to specify the common areas, the boundaries and the extent of ownership of each person from the various components of the building and for property documentation, for accurate property pricing.
Methods: In this research, first, the parameters affecting the valuation of the property will be identified and the required data will be collected according to the parameters. Then, using two-dimensional architectural and structural drawings drawn in CAD (which can be obtained from engineering or engineering systems offices), the building information model has been reconstructed. After that, for each of the building components, legal enrichment (specifying common areas and building amenities) has been performed and the value of the materials used in the building has been defined based on the price list for the building components. The proposed process in this research has been modeled in three dimensions in Revit software.
Findings: The building information model is used throughout the entire life cycle of a building, from design to construction, operation, and even maintenance, but it does not actually have the ability to model ownership relations and legal information; however, with the method implemented in this study, due to the importance of clarifying ownership relations in land or buildings, especially in court cases, ownership and legal relations can be defined; in addition to defining legal relations, the modeling carried out for a sample of a constructed building has been carried out for accurate valuation according to the location and effective parameters.
Conclusion: Finally, the share of each owner of the building components is determined by defining the joint and several relationships. In addition to accurately and unambiguously recording the amount of ownership of individuals in the building, this method can also be used to accurately price the property considering effective external and internal factors and reduce legal claims. Pricing is done using a price list for all building components and materials, which can be used to obtain the total price.
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