Palazzo Costantino alla Costigliola, Noble palace in Naples, Italy.

Palazzo Costantino alla Costigliola is a noble residence in Naples located on Via San Giuseppe dei Nudi, featuring a stone facade with regularly spaced windows and balconies across multiple stories. The building preserves its original architectural elements and displays the classical design principles typical of Neapolitan aristocratic homes.

The building began in the 17th century as a speculative complex of five ground-floor units and six first-floor rooms built by architect Paolo Papa, whose heirs kept it until 1739. That year Francesco Costantino bought the houses and commissioned Nicola Tagliacozzi Canale to restore them. In the 19th century the palace passed to the Fernades family.

The name recalls the Costantino family, who bought the houses in 1739 and had Nicola Tagliacozzi Canale remodel them; in the 19th century the palace passed to the Fernades. Visitors can read the 18th-century refurbishment in the courtyard staircase, whose stucco cartouches, foliage capitals and curved window entablatures echo Palazzo Trabucco.

The palace stands at Via San Giuseppe dei Nudi 25, near the Museo metro area on the Vomero slope; the entrance is on the street, and the courtyard with the open staircase lies inside. Look up at the stucco window frames and the piperno ledges from the street, then step into the courtyard for the staircase.

The open staircase in the courtyard follows the scheme of the one at Palazzo Trabucco, but adds sloping arches (archi rampanti) linking its staggered, wider flights. Under the piperno ledge of its three openings sit stucco cartouches, and the windows carry curved-entablature frames in stucco.