Old Custom House

About this museum

Old Custom House, located at 115 Alvarado Street in Monterey, ranks among the most historically significant free attractions on California's Central Coast. Offering FREE ADMISSION year - round, this landmark building provides visitors with a window into Monterey's pivotal role as the capital of Alta California under Spanish and Mexican rule.Visitors to Old Custom House can expect to discover the oldest government building in California, where duties were collected on goods shipped into the territory. The building witnessed one of the most significant moments in California history when the American flag was first raised here in 1846, marking the beginning of U.S. sovereignty. Period furnishings and interpretive displays help visitors understand the bustling commercial activity that once defined Monterey's waterfront.As a California State Historic Park, Old Custom House sits within Monterey's historic district, making it easy to combine with visits to other nearby historical sites and attractions.Old Custom House is located in Monterey. Visitors are encouraged to check current hours before visiting. Visit the official website for current details. While there is no admission charge, the park gratefully accepts donations. Add Old Custom House to your itinerary of free things to do in Monterey.