when building Apartment

[aberry5000]

just a quick question when building a apartment in the sims 3, do you have to put items in the rooms you do not intend to us? "Hidden Room Marker" used for the NPC?
thanks

[simsample]

No, you can leave them empty. Items in those rooms will never be seen, as you cannot enter an NPC apartment.

[Srikandi]

Note that the NPC is actually associated with the DOOR, not the marker. The marker just hides the room. To get NPC neighbors, you place a door on a public area (one that has the public room marker) and set it as an NPC door via its debug menu.

[LS_Bari]

I have the mod that unlock the high rise buildings even if the last patch included them (but it misses 1 or 3 high rises)... my guess is... where the heck can I find the mailbox? I tried everywhere!! Buy debug etc... the mod says that the mailbox is included in buydebug... Any help is welcomed :)

[simsample]

Not sure which mod you are referring to, but there is a mailbox here:
http://www.modthesims.info/showthread.php?t=427515&goto=lastpost
And possibly others out there to download, too.