A couple in Australia owned a piece of land on the southwestern coast of Australia. They wanted a unique vacation home design for it, so they approached Modscape, an architectural firm near Melbourne. Modscape produced this design concept: a house that's hanging off the edge of the cliff, giving a panoramic and perhaps terrifying view of the ocean.
Modscape proposes anchoring the house to the cliff with steel pins driven into the cliff face. Prefabricated modules would hang off the pins. Residents would enter the home through the carport, which is at surface level. An elevator provides access to lower levels which offer an unobstructed view of the raging seas below.
All of this sounds really expensive. Perhaps the owners should try to find a builder who's willing to improvise and user cheaper materials.