The saving in consumption of Reinforcing Steel & Cement due to over 50% reduction is dead weight of the walls. The cost of plaster finished in Lightweight Concrete Block Walls is much lower than the corresponding brick wall. The saving in the number of piles or raft footings for foundations due to dead weight reduction thermal. The saving in energy cost due to thermal insulating properties. Increased carpet area with the same built-up area due to lesser thickness of wall in and cladding. Due to the bigger size of Lightweight Concrete blocks, there are a less number of joints in the masonry thereby resulting in savings in Cement, Sand and Water which are costly as well as scarce. Uniform and bigger size of block enables speedy construction