Bag End: The home of the Baggins family.
It was excavated and built by into Hobbiton Hill by Bungo Baggins, Bilbo's father. When Bungo had married Belladonna Took, he had used her money to build the hole for the two of them.
It was a very spacious dwelling, and quite luxurious compared to some. It had a round green door with a brass knob in the centre.The door led to a central tunnel, with doors opening on to rooms off of it. The tunnel was tiled and carpeted and had pannelled walls with lots of pegs for visitors' hats and coats.
Like most hobbit houses, there was no upstairs, with all the rooms being on the one level. There were bedrooms, bathrooms, cellars, pantries, wardrobes, kitchens and dining rooms. The rooms on the left side (going in) were the best ones, because they had deep-set windows looking out over the garden and meadows past it. There were fireplaces in most rooms.
Bilbo Baggins inherited it from his parents, and he in turn left it to Frodo, his cousin. When Frodo left Middle-earth he gave the house to Samwise Gamgee.