The phrase "to leave the apartment" means to exit or go out of the place where you live.
Sentences with «to leave the apartment»
Finally, I pretty much don't leave the apartment in anything but loafers these days. (chicagopetiteblog.com)
Today, I never leave my apartment without making sure everything is tidy and in its correct place. (health.com)
I pretty much won't leave the apartment without concealer on — it's my must have just to cover up some dark circles and redness around my nose. (viewfrom5ft2.com)