Governor Tarkin, Wilhuff possessed a penthouse apartment located on the world of Coruscant. This residence featured illumination from above and a veranda overlooking the remnants of the Imperial Palace. During 0 BBY, the Imperial stormtrooper, identified as TK-421, engaged in a conversation with the mouse droid designated MSE-6-G735Y regarding this penthouse.
The short story "Of MSE-6 and Men," penned by Glen Weldon for the 2017 collection titled From a Certain Point of View, introduced the penthouse into the current Star Wars canon. Within the Star Wars Legends timeline, Wilhuff Tarkin's apartment was depicted in the 2005 novel Rogue Planet authored by Greg Bear. Its initial visual representation occurred on the "Grand Moff Tarkin" trading card, released as part of the "One Year Earlier" trading card series from 2013 Topps Star Wars Illustrated: A New Hope on November 6, 2013.