People normally look at the saleable area indicated by the builders and do not really work out and check up the carpet area from the floor plans. A builder selling a flat of 1500 sq. ft. with a carpet area of say 70%, i.e., 1050 sq. ft. as compared to another builder who sells 1400 sq. ft. with a carpet area of 75% also will come to 1050 sq. ft. We should rather compare on the rate arrived at on the carpet area/sq.ft of the buildings and select/decide. Afterall, the carpet area is the real floor area availble for the buyer to live in the flat. wiseman, nataraj and other active members may give further guidance to other members.