AAC blocks are one third lighter than conventional clay bricks, thereby reducing the dead weight of the structure drastically,Light weight structure decreases construction cost due to reducing steel, Cement and Excavation.Our Case Study Shows Following Results Reduction in steel = 15 % Reduction in cement = 10%.Due to reduction in dead weight, Reduction in consumption of steel and cement and lesser excavation for foundations, construction time is reduced which in turn results in savings in labor cost and overheads.