— The suburban office market has had a tough few years, but 2015 nay have been the year that things turned around for its owners and operators. The fourth quarter was especially robust, with 967,329 square feet of absorption, bringing the total for the year to more than 1 million square feet, according to a fourth quarter analysis by MBRE. The overall direct vacancy rate dropped from 20.9% to 19.9% over the fourth quarter alone. And vacancy rates fell by more than 100 bps in every suburban submarket except the Northwest Suburbs, which still struggles with the highest rate in the region. The year-end vacancy rate for class A properties around O'Hare fell below 15% for the first time since 2000. Even the highly publicized moves by suburban companies into the CBD have had a more modest impact than some feared. Medline Industries, for example, has decided to take over the space occupied by Kraft Heinz in Northfield, which will move to the Chicago's Aon Center this year. In fact, according to MBRE, after three quarters that saw a steady stream of suburban-to-city migrations, there were no such announcements during the last three months of the year. The climate has improved enough that several developers are starting to propose new suburban, campus-style office projects. Hamilton Partners, for example, has proposed building a 330,000 square foot low to midrise class A development at Eola Rd. and I-88, and at least four other significant projects are on the drawing board.