Carol and Thomas Perko sold a condo at 233 E. 13th St. in the South Loop to Sonny and Chachyamma Abraham for $450,000 on July 8.
Unit #1207 is one of 205 units in the 26-story Museum Pointe development, which was built in 2006.
Ms. Perko serves as a learning resource center assistant at Scott Elementary School in Naperville.
Sales at Museum Pointe were down 30.8 percent from 2007-08, while the median sales price fell 1.4 percent during that time.
There were 620 sales in the South Loop in 2008, with a median price of $295,000.