San Jose was founded in 1777 as the first civil settlement in Alta California, but the downtown that exists today began to take shape in the decades after the Gold Rush. The commercial buildings of the historic district date primarily from the 1880s through the 1920s, an era when San Jose was a prosperous agricultural center surrounded by orchards and canneries. The architectural styles range from Italianate and Romanesque to early twentieth century commercial, reflecting the ambitions of merchants who built to last in brick and stone. First Street and Santa Clara Street formed the commercial heart of the city, lined with banks, hotels, department stores, and theaters.

The mid-twentieth century was devastating for downtown San Jose's historic fabric. Urban renewal programs demolished entire blocks of Victorian and early commercial buildings to make way for parking lots, government buildings, and modernist structures. Much of what had made downtown San Jose distinctive was lost in a single generation. The buildings that survived did so partly through luck and partly through the emerging historic preservation movement, which began to argue that old buildings had value beyond their real estate footprint. The designation of the Downtown Historic District placed the surviving structures under protective guidelines.

Today the historic district sits amid a downtown that is still searching for its identity. Tech company offices occupy some of the surrounding blocks, while restaurants and bars have colonized others. The older buildings, with their cornices and arched windows, provide visual texture in a landscape that can otherwise feel aggressively modern. Walking through the district, you can trace the transitions of San Jose's economy in its architecture: the brick facades of the agricultural era, the mid-century concrete of urban renewal, and the glass towers of the tech boom, all within a few blocks of each other.