The reason that I asked the question I asked, poorly asked it might have been is this:
I did something similar. I put my house in the library and moved it to a lot (the same lot, due to the puddle problem outdoors).
When I put things out of my inventory on to the walls, they did not go where I placed them. I reported this on the oooold bug thread -- the items instead teleported behind me to where they had been BEFORE I put them into the inventory. In other words, they remembered where they had last been in the game and went there when they came out of inventory (all but 1 or 2 that went weird places, only 1 went where i tried to put it).
The reason I asked if you saw these items at your OLD lot location is because I was wondering if they tried to return to the original location. Now if your house was no longer there, and the walls etc were not there maybe they couldn't, but I don't know if code-wise the objects "hanging" on a wall are associated to a wall so much as an x/y/z position with rotations.
MY position is that when you took the items out of your inventory they did try to go somewhere, just not where you put them. I don't know how pervasive this problem is, but when I read your description of your issue I decided entirely against relocating to another lot. Nothing is larger than 20x30 anyways unless I move into an existing home.