The chart below breaks down Back Bay condo sales on a per square foot basis. Almost all size Back Bay condos had a drop in sales in the first quarter of 2011 compared to 2011.

Back Bay sales for 700 sq ft condos or less has a -18.75% drop in sales compared to the first quarter of 2010.

Back Bay condo sales for condos 701 sq ft to 1,000 sq ft witnessed a -10% drop compared to last year.

Back Bay condo sales with 1001 sq ft to 1,500 sq ft sank 25%.

Back Bay condo with 1,501 to 1,800 square feet remained even compared to 2010

Back Bay condominiums with 1801 sq ft to 2,400 down -7.14%

Back Bay luxury condos with over 2,400 square feet sank a whooping -26.67%