Track2Realty Exclusive: Manoj John, VP, Corporate Planning & Strategy, RNA Corps maintains there is a correlation between cost of FSI and the nature of development that is viable given the high cost of land with limited development potential. If more can be built on the same land, the cost of land attributable to the project, which is as high has 50 to 80 per cent of project cost would come down. Hence, it would be viable for the developer to build residential projects at lower cost and hence make it more affordable.