It was built on the ruins of the already abandoned baronial palace of the Savelli, who in turn had it built by reusing the medieval castrum of the Annibaldi. The building features a double ramp stairway on the rear side and inside peperino ribbing and brick wall masonry. The structure also shows incorporated traces of the previous construction.

The Palace stands in Piazza Zanardelli, the Belvedere of Rocca Priora, which offers a view as breathtaking as it is extensive, from Rome to Palestrina.