Here is a comprehensive summary of the Wikipedia article on Westwood, Los Angeles:

Westwood is a vibrant commercial and residential neighborhood on the Westside of Los Angeles, best known as the home of the University of California, Los Angeles (UCLA), which opened in 1929. Just south of the campus lies Westwood Village, a major shopping, dining, and entertainment district planned in the 1920s, with businesses opening in 1929, making it one of the nation's earliest planned commercial districts. The area's development began in 1919 when Arthur Letts purchased the historic Wolfskill Ranch, and his son-in-law Harold Janss of the Janss Investment Company started advertising new homes by 1922. The neighborhood encompasses exclusive sub-areas like Holmby Hills (home to the Playboy Mansion) and Tehrangeles, a cultural hub for the Persian community along Westwood Boulevard since the 1960s. Wilshire Boulevard serves as a major corridor of condominium and office towers, while the region enjoys a mild Mediterranean climate with an "Indian summer" of warm highs in late summer and early fall.