the domus Augusti. Whether this was in fact the first emperor's house is disputed. This article refers to that house, therefore, as the "Carettoni house".

In 1865, Pietro Rosa began excavations at the so-called House of Livia. His excavations, part of a larger program commissioned by Napoleon III, included a superficial excavation of a house, located to the south. In 1937, Alfonso Bartoli did further surveys of the area