The second quarter Aspen housing market was characterized by a significant shift in the mix to smaller sized sales after showing the opposite pattern in the prior quarter. The average sale was 2,445 square feet, down 31% from the prior year quarter causing similar declines in the average and median sales price indicators. The large drop in the average size of a sale occurred three times in the past three years. Average price per square foot, a price indicator that is less affected by sudden shifts in square footage, rose 2.7% to $1,219 per square foot from the prior year quarter…