# An Integrated SWOT-PESTLE-AHP Model Assessing Sustainability in Adaptive Reuse Projects
## 5 Discussion  
Adaptive reuse in Greece reflects a complicated micro-environment, a unique macro-environment, and a large number of public and private actors. However, according with the empirical results of the quantitative analysis, the positive area overpasses the negative area, supporting the argument that adaptive reuse could be a sustainable urban development practice. Overall, the above analysis shows that political and economic aspects rank first, followed by environmental, socio-cultural, technological-technical, and legal aspects. The expert evaluations provide an interesting range of views, stressing the fact that adaptive reuse practices in Greece are not a subject of common perception among the various parties concerned. Looking deeper, the P3.Urban Re-Development Strategies/Incentives indicator, although is not of great significance for the excerpt on the environment, ranks first, being a matrix element that could be exploited to advantage the system, i.e., an opportunity. The P2.Political Support Level weakness indicator ranked fifth. Hence, these two indicators almost distribute their value and significance in the matrix between the positive and the negative areas, showing that the political aspect exerted an ambivalent effect on the system. Almost the same mutual exclusion applies to the P1.Blocking Neglect Policy indicator and the P4.Political Inertia indicator, expressing strength and threat in the political aspect, respectively. Although the two latter factors are evaluated to be of low significance in the system, they still add to the total cumulative result, thus it must be ensured that they will not defer sustainable development of adaptive reuse practices. Consequently, the above results prove that it is vital to raise the political profile, in both regional and local levels of governance, in order to highlight its strategic role and foster the benefits of adaptive reuse practices in urban sustainable development schemes. The E1.Economic Growth Boost indicator, representing the economic aspect as a strength element, ranked second. Additionally, from the economic aspect, the E3.Capitalization of Cultural Value indicator also ranked high, and positive, because it was evaluated as an opportunity to future challenges. Furthermore, weaknesses and threats, i.e., the E2.Inability to Estimate Economic Viability indicator and the E4.Investment Returns indicator, respectively, although both negative, ranked in the middle, although their input does not significantly affect the E1.Economic Growth Boost and E3.Capitalization of Cultural Value indicators' collective input. Therefore, adaptive reuse's economic aspect is considered to be of high importance and it positively affects the contribution of adaptive reuse to sustainable urban development. According to Table 7, the TT1.Technological Innovation indicator and the TT3.Scientific Fields Cooperation indicator, a strength in the third rank and an opportunity in the tenth rank, respectively, are both positive. Thus, their input was significant. Moreover, it must be noted that although the cross-counting indicators of the Technological-Technical aspect, i.e., the TT2.Asset Condition indicator and TT4.Technical Difficulties indicator, negatively affect the adaptive reuse development, they have particularly low values. Thus, their contribution to the negative area was not significant, adding to the value of the two strong positive indicators of the Technological-Technical aspect. In addition, expert evaluations regarding indicators of the Technological-Technical aspect were considered proportional, resulting in a consistent view with the probable severity of impacts in terms of risk factors analysis [177]. Moreover, indicators of the environmental aspect, as expected, positively affect the system. The EN3.Eco-Building indicator amounts to opportunities and the EN1.Reduced Environmental Footprint indicator, which is regarded as strength, rank sixth and ninth, respectively, owning positive values.