How do I put back the Penthouse Apartments in Sims 4 City Living?

@jadaadams2000 - Even though you don’t have any floating elements and the bug related to that problem was supposed to have been fixed in August, Whoops misread your post, your problem sounds exactly like this so I’ll still recommend the following thread, because part of your issue sounds similar and perhaps some of the solutions suggested will work for you too: https://answers.ea.com/t5/Bug-Reports/OPEN-CL-DU-Missing-structure-Floating-lots-after-bulldozing/td-p/13298644

• On p. 4 crinrict suggests disabling City Living, saving without it and then re-enabling the pack again. This suggestion is also detailed on p. 14 by someone else. However, there are some disadvantages to this solution which are also mentioned in both posts.
• On p. 6 there’s a suggestion of starting an entirely new save file which of course also has certain disadvantages.
• On p. 14 there’s a link to a mod with the City Living shells and there’s some info and building tips from the creator on p. 15 that might be worth reading although it doesn’t pertain to the mod.

Hope you find a solution that works for you 🙂