Rancho de los Palos Verdes was a 31,629-acre (128.00 km) Mexican land grant in present-day Los Angeles County, California given in 1846 by Governor Pío Pico to José Loreto and Juan Capistrano Sepulveda. The name means "ranch of the green trees". The grant encompassed the present-day cities of the Palos Verdes Peninsula, as well as portions of San Pedro,Torrance, Redondo Beach, Compton,Gardena, Lomita, Harbor City, Carson, Dominguez Hills (mountain range), Wilmington, Los Angeles

The grant was originally a part of Manuel Dominguez's Rancho San Pedro Spanish land grant. Around 1810 Manuel Guttierez, executor of Dominguez's will and de facto owner of his rancho, granted permission to then 17-year-old Jose Dolores Sepulveda to herd livestock in the southwestern reaches of the Rancho San Pedro. This eventually became the basis for the Sepulveda family's contested claim to the Rancho de los Palos Verdes. Dolores had trouble getting his land title cleared, so he took a trip to Monterey to get the matter definitely settled and, on his return trip, he was killed in the Chumash revolt at Mission La Purísima Concepción in 1824. In 1834, a judicial decree was made by Governor Jose Figueroa which was intended to settle the dispute between the Dominquez and Sepulveda families.

With the cession of California to the United States following the Mexican–American War, the 1848 Treaty of Guadalupe Hidalgo provided that the land grants would be honored. As required by the Land Act of 1851, a claim for Rancho de los Palos Verdes was filed with the Public Land Commission in 1852, and the grant was patented to José Loreto and Juan Capistrano Sepulveda in 1880.

By 1882 ownership of the land had passed from the Sepulveda through various mortgage holders to Jotham Bixby of Rancho Los Cerritos, who leased the land to Japanese farmers. After the turn of the century most of Bixby's land was sold to a consortium of New York investors spearheaded by Frank A. Vanderlip that created The Palos Verdes Project and began marketing land on the peninsula for small horse ranches and residential communities.

The first Spanish sailor and soldier to come into contact with the Indigenous population on the Palos verdes Peninsula was Juan Cabrillo. While Juan Cabrillo's journey took him the entire California and Oregon coast he is noted with having stopped near Catalina island and is known to have skirted along the coast of the Peninsula. Vizcaino was to be the Second Spanish soldier and Sailor to land near the peninsula. “The smoke from many fires and green vegetation on the hills of the Palos Verdes Peninsula attracted them, but as they approached the bay to its southeast end, Vizcaino evaluated the harbor as having insufficient protection from the wind.” He would later land near Catalina and continue up the coast.

In 1781 the Spanish set out to build a community on the land that would later become known as Palos Verdes along with the families that joined a group of soldiers were supposed to join. One such soldier was Francisco Xavier Sepúlveda the soldiers came with their wives and children as well. Francisco brought his wife Maria Candelaria de Redondo. His grandson would later become the founder and owner of Rancho de los Palos Verdes.

The Sepulveda Family was granted a larger tract of land of the which the Rancho de los Palos Verdes

On February 2, 1848, Treaty of Guadalupe Hidalgo was signed between the United States and Mexico which officially ended the Mexican–American War that began in 1846. The treaty stated that certain territories that belonged to Mexico would now become part of the United States. A total of seven states were acquired by the U.S. government one of which was the state of California, where the Rancho de los Palos Verdes is located. The treaty also granted full American citizenship for those who lived in these states before becoming part of the United States. This included the people who lived in the Ranchos that were established in were established during the Spanish and Mexican periods in California.

Once the state of California became part of the United States, the area became part of the United States government.

Frank A. Vanderlip was a successful banker in New York who in 1913 purchased the Land

• Site of Adobe Home of Jose Dolores Sepulveda. Dolores Sepulveda's adobe was built in 1818. The Jose Dolores Sepulveda Adobe was designated a California Historic Landmark (No. 383) on Jan. 03, 1944.
• La Venta Inn
• Vanderlip House
• Wayfarers Chapel

• Ranchos of California
• List of Ranchos of California
• Ranchos of Los Angeles County

• Map of old Spanish and Mexican ranchos in Los Angeles County

33°46′48″N 118°20′17″W / 33.780°N 118.3380°W / 33.780; -118.3380