Thank you to Stacey for sending me this listing. She actually went to see the house (these photos work!) and described the house as "fantastic."
The American Heritage Dictionary has this note in its definition of "fantastic": "Fantastic describes what seems to have slight relation to the real world because of its strangeness or extravagance: fantastic imaginary beasts such as the unicorn." I'm sure that's not the usage Stacey meant. Um, right, Stacey?