Castro Valley sold for $400,000 worth of gambling debts! Castro Valley was part of the original 28,000 acre (110 km²) land grant given to Don Guillermo Castro, called Rancho San Lorenzo . This land grant included Hayward , San Lorenzo , and Castro Valley, including Crow Canyon, Cull Canyon, and Palomares Canyons. Don Guillermo Castro - The San Lorenzo Land Grant Don Guillermo was born in California, then a Mexican possession in 1810. The son of Don Carlos Castro of Las Lagas Rancho. His birthplace was located near the village of Coyote in Santa Clara County along what is now highway 101.A career soldier, he served in the Mexican army as a lieutenant of militia at the pueblo of San Jose. In 1838, he was listed as a surveyor of government lands in San Jose, and it is about this time he acquired his land grant, roughly 28,000 acres, then known as Rancho San Lorenzo. This land included those areas we now identify has Hayward, San Lorenzo, Castro Valley, as w
San Leandro has a colorful history and played an important part in the development of the Bay Area. I hope to highlight bits of information on the little things that make it so interesting like street names, festivals, important architecture and current events. . I am a real estate agent serving the bay area and offer my services to help you buy your home in history.