Ashley Olsen and Justin Bartha could soon be moving in together. The couple, who’ve been dating since 2008, were recently spotted checking out a 3,500-square-foot apartment in Cobblestone Lofts at 28 Laight St. in TriBeCa. It has three bedrooms, 2½ baths, a wine-storage unit for 500 bottles, a cappuccino machine built into a kitchen wall and a paparazzi-unfriendly parking garage that allows residents to zip from their cars to their apartments without walking outdoors. Corcoran broker Brian Babst didn’t return our calls, and Olsen’s rep said it’s “not accurate.”