Hobbit House, aka The Low-Impact Woodland Home (Wales)
Cost: $4560, and 1000 to 1500 hours of labor
Simon Dale's "Low-Impact Woodland Home" looks like something out of Tolkien's Shire.
Carved out of a Welsh hillside, this home was built by Dale and his father-in-law (as well as some friends and passers-by). The house, constructed with "maximum regard for the environment," features a frame of spare wood from the surrounding forest, straw bales for insulation, a plastic-sheet and mud/turf roof, and solar panels for "lighting, music, and computing."
Though it may not be billed as a Hobbit house, the dwelling bears such an uncanny resemblance to the structures of Peter Jackson's Lord of the Rings movies that you wonder if Jackson didn't get his inspiration from Dale (or vice versa).
All this house is missing is round doors and Gandalf peeking through the window.