DARIEN, ILL. — Lee & Associates has brokered the $19.5 million sale of a 185,850-square-foot industrial building in Darien, a southwestern suburb of Chicago. Built on a speculative basis, the building is located at 7879 Lemont Road. Brian Vanosky, Tim McCahill and Jeff Janda of Lee & Associates represented the seller, Panattoni Development Co. Mike Plumb of Lee & Associates represented the buyer, a private investor. Tile distributor Tile & Top occupies a portion of the property. Lee & Associates will market for lease the remaining 116,043 square feet.