Bel Air is a neighborhood in the Westside area of Los Angeles, in the foothills of the Santa Monica mountains. The lightly populated residential district, with an older, well-educated population, has a high income level and a large percentage of married people. It was founded in 1923.When you arrive in Bel Air, you'll know you've arrived. Immaculate mansions steal away behind soaring hedges and towering gates in this celebrity homestead. Surrounded by LA's sloping chaparral, this Westside neighborhood boasts natural wonders alongside architectural splendors. Bel Air's relative inaccessibility contributes to its private feel and ultra-exclusive atmosphere. Together with Beverly Hills and Holmby Hills, Bel Air completes the third side of LA's "Platinum Triangle," an area denoted for its lavish lifestyle. Today Bel Air remains one of LA's most seclusive neighborhoods.