Wherewithal House was the home of Iris Wildthyme when she lived in the Clockworks of the Obverse. It was located in the middle of a radioactive desert. Faith, Hope and Susan were the owners of the house.
After the clockworks abandoning of the Obverse, wherewithal house was relocated to the edge of the clockwork city underneath the planet of Hyspero and was still occupied by the three aunts. (PROSE: Wildthyme Beyond!)