Sustainability Assessment of a Low-Income Building: A BIM-LCSA-FAHP-Based Analysis

The construction industry is one of the most significant consumers environmental resources worldwide. Faced with need to produce new buildings, but without further burdening environment, attempts improve social, economic, and indicators have turned attention building in recent decades. objective this research develop a novel framework assess sustainable choice materials applied low-income according three pillars Triple Bottom Line (TBL). A BIM-LCSA-FAHP-based model was proposed creation nine different scenarios, where structure (precast concrete, cast-in-place structural masonry), painting (PVA water-based acrylic), roofing (ceramic fiber cement tiles) varied. procedure consists elaboration 3D Building Information Modeling (BIM) model, for which parameters described above were evaluated Life Cycle Sustainability Assessment (LCSA)-TBL-based criteria, divided into ten sub-criteria, that includes: (1) (acidification, eutrophication, global warming, ozone depletion, smog formation, primary energy, non-renewable mass total), (2) economic (construction cost) (3) socio-political issues (community impact). Finally, Fuzzy Analytical Hierarchy Process (AHP) used as multi-criteria decision-making technique helps aggregating classifying impacts each scenario sustainability index (SI). Regarding best option construction, results indicated precast concrete when combined acrylic paint tiles (scenario 3) proved be advantageous achieved first place (SI) developed work. This methodology replicable typologies several categories materials, making it robust decision-aiding tool engineers, architects, decision makers.