I'm all too familiar with having a large building project. I spent several days remodeling the bathhouse, adding another private bathing room, then a fireplace drying room, which got a little out of hand. I learn the bathhouse got slightly remodeled in recent updates, and now has a fireplace where I was planning to put a storage room.
I can't see the new structure updates on my old files, and I don't need two fireplaces, so I've decided to give up my 60+ days file and just start over with a new custom character I was working on.
Here's the custom fireplace room I made after several irl days. RIP. 
Don't question how stone pillars are on top of a carpet. It's a trade secret.