SNDR projects are multidimensional subjects whose success relies on the progress of sub-groups (Ganapati & Mukherji in JAMA 15(1):58–73, 2014). Although the number of studies exploring the reasons for failure of disaster recovery projects is rising, they generally concentrate on recovery projects as a single short-term reconstruction task. Furthermore, to propose a set criterion for evaluating SNDR projects’ recovery, an appropriate answer should be found for the following question: Which factors can be holistically influential on the recovery projects after a socio-natural disaster? Selected Success Factors (SSFs) are the necessary elements to form CSFs, which are causes of project success. Once the CSFs have been developed, Key Performance Indicators (KPIs) can be structured to evaluate the success of SNDR projects (Yilmaz et al., in JAMA 7(3):40–56, 2013). CSFs have been traditionally classified according to time, cost, quality, and stakeholders’ desire (Rani et al., in JAMA 1891(1), 2017; Supernaw in Impact of project management methodology use in post-disaster recovery and mitigation projects by North Carolina emergency managers, Northcentral University, 2019); however, some modifications are necessary to make the evaluation criteria appropriate to evaluate SNDR projects. Furthermore, based on the research outcomes in Fig. 4.2, this chapter attempted to (a) identify Primary Success Factors (PSFs) using system thinking and (b) structure SSFs by reliability check of the PSFs per experts’ judgments. Moreover, the results gained from the Delphi survey and critical literature review were compared to identify the difference between experts’ and literature perspectives.