Can you get back into Safeword?

During the mission Return to Steelport, you need to go to a club named Safeword to rescue Zimos. Are you only able access Safeword during this mission, or is it also possible to return and run around in there after this mission?

You can't get back into the area you were in during the mission. Later in the game you'll unlock it as a crib (at the end of the Zimos mission line). However, you're in a different part of the building, the penthouse area from what I can tell. You can, however, upgrade it to a majestic, purple tower displaying your dominance over the Morningstar's territory.

A while further down the storyline you wind up taking over the place and setting it up as another Stronghold.