The mansion is packed in among other houses in a densely built area of the old town but the Baroque facade is visible at the end of a blind alley, a typical arrangement for the period.

[2] Its facade fronts on the narrow Gallusova Street, with the north end jutting into the south of the roughly triangular Brolo square, once the center of medieval Koper.

[7] The central axis of the facade rises one floor higher than the two wings, capped by a tympanum supported by volutes.

The ceremonial hall was painted in the mid-nineteenth century by Giuseppe Lorenzo Gatteri, a fresco painter from Trieste.

Until 1967 there were four large equestrian portraits on the walls of this stairway: the Polish King John III Sobieski, Charles V, Duke of Lorraine the Austrian Emperor Leopold I and Prince Eugene of Savoy.

According to an inscription on the first floor triple lancet windows, the house was incorporated in the south wing of the mansion in 1710 in a renovation initiated by Giovanni Nicolò Gravisi.

[10] The concert hall is too small and the building does not have enough space, so the music school has been forced to hold classes in various other locations in Koper.

He presented three of four major equestrian portraits that had been removed from the mansion in 1968 for restoration and were now finally being returned to their original site.

[13] Two of the portraits were briefly hung in their original locations, but were then returned to the Praetorian Palace and Koper Regional Museum.