The Hollywood Hills, an unofficial designation of part of the City of Los Angeles, California, are part of the eastern section of the low transverse range of the Santa Monica Mountains, which extends from the Los Feliz District and Hollywood, on the south side of the Valley, to Pacific Coast Highway, Malibu and Pacific Palisades.
The Hollywood Hills form the north barrier of the Los Angeles Basin. There has been extensive residential development in the Hollywood Hills since the 1920s. The area includes Mulholland Drive and Laurel Canyon, and is dotted with the mansions of the rich and famous.