The Diaz Family's House is the home of Mr. and Mrs. Diaz and Marco Diaz in the Disney XD animated series, Star vs. the Forces of Evil. It is also where Star Butterfly lives while staying on Earth.
When Star moved in, she used her magic wand to create a castle loft on the second floor that juts out of the left side of the house. In Season two, Star accidentally created a new smaller tower.
Early concept art for the Diaz House
The spare room before its transformation