I have Hearthfire and bought the plot in Morthal. After arriving and building the initial "small house", nothing appeared. There was just a blank empty plot. After porting to other towns and disabling my mods, I got the house to sort-of appear, but not really. Some of the walls are visible, and some of them aren't there at all, and there's no door to enter the house.
I've tried building more of the house in an attempt to force it to update, but all that does is add more walls. I've tried porting to other towns and restarting the game and it hasn't helped. It still looks like this with all mods disabled. Some screenshots:
My last save is from a couple of hours before all these troubles began (I only really use quicksave to make frequent saves). If I went back to that save and worked my way back to this point sans mods, is it likely it would work? Or is my save completely messed up?