I always build my own. My current house is an Orc stronghold. I've taken parts from Jagarsfeld. I'm a collector, I like to collect as much as possible. There are enough bookshelves inside for every book in the game and I'm trying to get them all in my library. The mine entrance leads to my underground armoury. I use Skyre and there is a mannequin and weapon rack for every craftable weapon and piece of armour all arranged into sections according to the material used. So for example, there are 3 different steel armours and 25 steel weapons so my steel section has 3 mannequins and 25 weapon racks. I want to have the entire hall filled. There is a door leading from the armoury to the trophy hall which is the trophy hall from Jagarsfeld which I've modified. So there is a place for all the unique items such as masks, artifacts, books, scrolls etc as well as another load of racks and mannequins for more armour. There is a mannequin for example for each different guard armour (only have Whiterun and Solitude so far). My current character is quite the poisoner so the cellar of the house is a large cave filled with all sorts of mushrooms and a few deathbell/nightshade.