Analysis of Development Cost Based on Planning Characteristics of Multifamily Housing Development Projects

Abstract

When conducting a feasibility analysis for multifamily housing development plans, changes in key cost elements in the financial analysis, such as construction costs or land values, can be analyzed using simple financial analysis. To conduct a quantitative analysis of key planning elements influencing the feasibility analysis, such as the floor-area ratio, a design must be created on the basis of related laws followed by the financial analysis. Few methods have been presented on the analysis of the more general effects of such planning elements rather than on the conditions of specific land values and construction costs. If these problems can be overcome, the development cost of multifamily housing projects under random conditions may be quantitatively explained with a few input variables, such as key cost elements and key planning elements before the design stage. Therefore, this study developed a standardized financial analysis model using simulation analysis and the varying coefficient model. The development cost was analyzed on the basis of the planning characteristics of multifamily housing development projects under loan redemption. The standardized analysis model and the regression equation that resulted from this study are expected to offer a quantitative analytical method to determine how feasibility studies for multifamily housing development projects are affected by (1) planning characteristics such as the floor-area ratio, the dwelling-area factor, and the construction duration; and (2) key cost elements such as the construction cost, the land value, and the sales rate.