Sea Cliff is a neighborhood in northwestern San Francisco, California. It is known for its large houses and ocean views. Sea Cliff is one of eight master–planned residence parks in San Francisco; its master plan was developed by landscape architect Mark Daniels. Sea Cliff has become one of San Francisco's most elite residential areas.

Mark Roy Daniels was an architect, landscape architect, civil engineer, and city planner active in California. He was known for creating plans that incorporated existing natural features in order to preserve a sense of local character. He worked on master plans for the development of neighborhoods in San Francisco and the East Bay, on the Monterey Peninsula, in Los Angeles, and elsewhere. In the years immediately preceding the formation of the National Park System, he was briefly the general superintendent and landscape engineer for the entire system of national parks under the United States Department of the Interior.