mansionize
Verb. To buy an inexpensive home, spiffy it up with contractual work, and sell it for at least a million bucks.
Example:
Five years ago, that gorgeous home was only a shack! Considering all the construction done on it, the owner must've wanted to mansionize it.
Five years ago, that gorgeous home was only a shack! Considering all the construction done on it, the owner must've wanted to mansionize it.