La Fortaleza / Palacio de Santa Catalina

La Fortaleza, officially known as Palacio de Santa Catalina, is the governor’s residence in Old San Juan. Built in the 16th century, it is the oldest executive mansion still in continuous use in the Western Hemisphere. While it continues to serve as the home and office of Puerto Rico’s governor, parts of the building and grounds are open to visitors on guided tours.

Construction of La Fortaleza began in 1533 under orders from the Spanish Crown. Initially, it was designed as a military fortress to defend San Juan from attacks. However, its strategic value as a defense structure was limited, and it was soon repurposed as the official residence of the island’s governors.

Over the centuries, La Fortaleza has undergone numerous renovations and expansions, incorporating Spanish, Italian Renaissance, and Neoclassical architectural elements. It has housed more than 170 governors and played a central role in Puerto Rico’s political history. In 1983, it was designated a UNESCO World Heritage Site as part of the San Juan National Historic Site.

La Fortaleza is a working government building, so access is limited. Visitors can only enter as part of an official guided tour. These tours usually cover:

• Historical background – An overview of the building’s construction and role through the centuries.
• Architecture – A look at the different architectural styles that have been added over time.
• Gardens and courtyards – Outdoor areas that remain part of the property.

Since it serves as the governor’s residence, interior access may be restricted depending on events or schedules. From the outside, the pale blue façade of La Fortaleza stands out along Fortaleza Street, one of Old San Juan’s most photographed streets.

• Tours: Check in advance for tour availability. Tours require government-issued identification.
• Timing: Morning visits often provide more availability and shorter waiting times.
• Security: As an active government building, visitors should expect security checks.
• Nearby Attractions: The property is close to other landmarks in Old San Juan, such as Puerta de San Juan and Paseo de la Princesa.

Hours: Open Monday-Friday from 8:00 am to 4:00 pm.
Entrance fee: $10