If inflation in cement prices is a good indicator of pre-paid construction liablities, cement prices n Pakistan increased by more then 50% in last year alone. (Price of 50 kg back jumped from Rs245 to Rs. 385 in a year). I am not sure how DHA lahore hedges its risks, but it essentially means the cost of developing areas such as Phase 7 has increased by atleast 50%. This means that investors in DHA 9/10 phases may end up covering DHA phase 7 construction costs. 
