The central portion of Domínguez Ranch House was built in 1826 by Manuel Domínguez. Rancho San Pedro, comprising ten square leagues, was granted provisionally by Governor Fages to Juan José Domínguez in 1784 and regranted by Governor Sola to Cristóbal Domínguez in 1822. On this rancho, the Battle of Domínguez Ranch was fought on October 8 and 9, 1846, when Californians led by José Antonio Carrillo repelled United States forces under Captain William Mervine, U.S. Navy, in an attempt to recapture the Pueblo of Los Angeles. The Domínguez Ranch Adobe later gained recognition for its distinctive architecture and unique history as the homestead of the Rancho San Pedro, and it was placed on the National Register of Historic Places by the National Park Service as provided for by Congress in the Historic Preservation Act of 1966, approved in Washington D.C. on May 28, 1976, with the plaque unveiled September 12, 1976, upon the completion of the restoration of the homestead.
