In Turkey, calculation of the factors affecting the value of the condominium units of a building via 2D architectural project data leads to problems. One of the biggest problem is the land share calculation. The aim of this study was to establish a mechanism by which the properties of the factors affecting the value can be determined mathematically and to arrive at a value-based land share. For this purpose, the study utilized a 3D virtual Building Information Modelling (BIM) model. The value factors and weights were determined via a questionnaire, 3D BIM model of the structure was created, metric values of the factors were calculated and the nominal values of the condominium units were calculated. This study demonstrate that a building nonexistent in the real world can be represented in a virtual environment and comparable information source can be presented to the expert who will carry out the valuation process.

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在土耳其，通过二维建筑项目数据计算影响建筑物公寓单元价值的因素会导致问题。最大的问题之一是土地份额的计算。本研究的目的是建立一种机制，通过该机制，可以在数学上确定影响价值的因素的属性，并得出基于价值的土地份额。为此，该研究使用了 3D 虚拟建筑信息模型 (BIM) 模型。通过问卷确定价值因素和权重，创建结构的 3D BIM 模型，计算因素的公制值并计算公寓单元的标称值。

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