I very much dislike expansion packs giving fun and unique gameplay just to lock it to a world and forget about it. So I just decided to just make a mod to at least try to allow more options. Some modders have unlocked the City Living locked lot traits or the gameplay objects associated with them before. However, many have abandoned their mods and there were some issues that occurred with the apartment problems themselves. The mod unlocks every single locked Lot Trait in the City Living expansion pack for you to place on other lots. This mod also contains a fix for the vent that is supposed to have goo puddles ooze out of it, but used to be broken in vanilla game. The roach and random smell spawners have a tile now to make them visible. Roaches can be placed anywhere as long as they’re on a wall, I am not sure what objects will stop sims from fixing the roach problem but counters/coffee tables/desks do not seem to obstruct the routing. And of course, all the gameplay objects associated with the traits are unlocked, and functional.
Credit : LunarBritney