The Grand Williamsburg single staircase option starting at 6,530 finished sq. ft. with a width of 96 ft. and a depth of 50 ft. Our On-Your-Lot price (no land cost) starts at $719,000. Double staircase configuration starting at 7,420 sq. ft. with a width of 100 ft. and a depth of 50 ft. Our On-Your-Lot price (no land cost) starts at $829,000.