Nope, Campbell Mithun’s not moving out of its home turf in Minneapolis but the agency will be settling into new Twin Cities digs come Q4 of next year. The 80-year-old, IPG-owned agency has just signed a lease to be the lead tenant in the 510 Marquette building and will occupy approximately 65,000 square feet on the 10th-13th floors as well as the rooftop and penthouse. So, why the move? Well, according to CFO Steve Arndt (above), the goal is to offer a more “employee-centric” environment in a space that has, yes, “no ceiling tiles” and adopts the now-popular open floorplan model. Campbell Mithun is working with Julie Snow Architects on the new office, which you can see in barebones form via the b-roll clip of staffers below. If you care for further explanation on the move, this time from CM CEO Rob Buchner, you can check out the brief :30 clip after the jump.