Breezehome Basement is small player home mod which (big surprise) adds a basement to Breezehome. 
It's got more crafting stations and storage so that Breezehome can be a viable player home for later in the game, 
instead of just a beginner one. It also adds a map marker for the house in Whiterun so you can fast travel to right outside the front door, 
and you can fast travel from the basement cell. 

There's a blacksmithing anvil, a smelter, a tanning rack, a grindstone, a workbench, an arcane enchanter, and an alchemy lab. 
All containers are safe, and there are several display racks and two new bookshelves. 

I made this for my husband who really likes using Breezehome, so I don't plan on adding much more to it, 
but I figured some other people might like to use it as well. Also, some of the decorations are specific/static/not exactly balanced, 
but most of the stuff in here can be taken. It's not quite a cheat mod, but you'll probably have an advantage if you take all the items.

That's about it - enjoy!

(Available on all platforms.)