Ponce's social club tradition runs deeper than the current building. The first Casino de Ponce was founded in 1862 on Calle Marina, a gathering place for the city's influential families during the Spanish colonial period. Political quarrels fractured the membership - factions loyal to and opposed to Spanish General Sanz could not share a ballroom - and the organization dissolved. It reformed on 19 July 1876, but the cycle of gathering, arguing, and scattering continued. The third iteration occupied a building with a green roof visible in photographs from 1910. When a hurricane destroyed those quarters, local patron Lucas P. Valdivieso sponsored the construction of the replacement that still stands today. Each casino reflected the ambitions of its era: the first was colonial, the second was politically restless, and the fourth - this one - was grandly cosmopolitan, built in reinforced concrete when most of Ponce still used brick and stucco.

The building's real significance lies in what it bridges. Architecturally, the Casino represents a transitional moment: 19th-century European design vocabulary executed in 20th-century American construction technology. The north facade on Luna Street features Spanish Baroque detailing - a frontispiece with Tuscan columns and pilasters supporting an architrave and blind-arch tympanum, all finished in highly detailed plaster reliefs. The western facade stretches seven bays wide, more restrained but no less deliberate in its proportions. At the intersection of the two facades, a single chamfered bay creates an intimate corner entrance that has become one of the building's defining features. Yet beneath the ornamental plaster, the structure is reinforced concrete, a technology arriving from the United States that was transforming construction across Puerto Rico. Gonzalez managed to make modernity invisible, wrapping American engineering in European elegance.

Climb the wide wooden stairway from Luna Street and the Casino reveals its original purpose. Four rooms occupy the second floor, each with a name that suggests the evenings they were designed for. The Felices Dias ballroom - Happy Days - is the largest at 70 by 40 feet, facing west to catch the afternoon light, capable of holding 300 guests. Adjacent to the bar sits the Impromptu Room, now typically used for buffet service but once, presumably, the venue for more spontaneous entertainments. Tu y Yo - You and I - is the Blue Room, its walls painted the color of its nickname, reserved for gatherings exceeding 150 guests. And tucked into that distinctive chamfered corner is the smallest and most intimate space, known simply as The Chamfered Room, with five doors including two that open to the exterior. Below, a spacious courtyard with a central fountain offers open air. The rooms carry the optimism of 1922, a time when Ponce believed the parties would never end.

After the Casino's 1936 bankruptcy, the building began its second life as a vessel for whatever Ponce needed. Post office workers sorted mail beneath Neo-Rococo plaster reliefs. Tax collectors worked in rooms designed for waltzing. When Ponce's actual city hall proved insufficient, municipal government temporarily set up shop in the ballrooms. The building's adaptability was not accidental - its generous floor plans and solid construction made it useful far beyond its original social purpose. In 1987, the National Register of Historic Places recognized what the building represented, listing it as architecturally and historically significant. Three years later, in 1990, the Ponce Municipal Government completed a restoration that returned the Casino to something approaching its original grandeur. It now serves as the city's premier reception center, hosting high-ranking official events. The dinner honoring Felipe de Borbon, then Prince of Asturias, took place in these rooms - a fitting return to the Casino's roots as a venue for Ponce's most important gatherings.