A big medieval farm house made out of Oak Wood and Stone Bricks. It contains enough storage room even for the late game.
It also allows you to keep two horses and some farm animals within the first floor, whoose pens you can enter without leaving the house. It also has a cobblestone fireplace, which you want to be careful with. On our server we had a setting to prevent fire from spreading which allowed us to build such fireplaces without any kind of danger, but if you don't have that setting you should probably not take the risk of using the fireplace.
By the way, the screenshots don't nearly contain all the rooms, so you'll have to explore those by yourself!
Have fun with it and thank you for all diamonds / subscriptions / comments!