The Sonoma Barracks is a two-story, wide-balconied, adobe building facing the central plaza of the City of Sonoma, California. It was built by order of Mariano Guadalupe Vallejo to house the Mexican soldiers that had been transferred from the Presidio of San Francisco in 1835. The Presidio Company and their commander, Vallejo, were also responsible for controlling the Native Americans living on the northern border of Mexican California.