Analyzing Cost Efficiency and Project Scope in Post-Disaster Housing: Reconstruction Cases of TOKI in Türkiye

Abstract

The Mass Housing Administration of Türkiye (TOKI) operates as the primary public organization responsible for delivering extensive affordable housing throughout Türkiye while ensuring disaster resilience. The recent decades of earthquakes and environmental hazards in Türkiye have necessitated extensive post-disaster reconstruction initiatives nationwide. In response, TOKI has completed numerous disaster housing projects across the country through an integrated infrastructure framework supporting community recovery. This study presents an extensive statistical evaluation of 664 disaster housing projects constructed by TOKI across 40 provinces. Specifically, a quantitative analysis is conducted on 434 disaster housing projects for which detailed financial data are available. This research examines differences in construction costs between urban mass housing developments and rural village settlements, particularly focusing on the integration of functional structures such as schools, mosques, commercial units, and barns. Although mass housing projects require significantly larger total budgets due to their extensive scale, statistical analysis reveals no significant difference in per-unit construction costs between mass housing and village housing projects. Regression analysis indicates that incorporating barns increased per-unit construction costs, while the presence of schools and mosques significantly decreases these expenses. The findings of this research provide critical insights into the economic and functional factors influencing disaster housing reconstruction in Türkiye and offer practical recommendations for improved planning, resource management, and community reconstruction based on an evaluation of functional structures.

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