Izayoi's mansion

Izayoi's Mansion is a location that was first introduced in InuYasha the Movie 3: Swords of an Honorable Ruler. It is the site of the Great Dog Demon's passing.

History
Izayoi was residing in the mansion whilst she was in labor with her unborn child. Takemaru acted as a guard.

Hanyō no Yashahime
The palace made its main series debut in The Secret of the Rainbow Pearls where Riku witnessed the event of the building being burnt down. Zero later went to the ruins in preparation to force Towa's power to the surface.