Sierra Towers is a residential 31-story high-rise condominium building in West Hollywood, California, United States.

It was designed by Beverly Hills mid-century modern architect Jack A. Charney, who studied under Richard Neutra and Rudolph Schindler.

[1] Sierra Towers was first operated as a rental property, but following its purchase by New York real estate investor Helmsley Spear Inc., the building was converted to condominiums in 1974.

[1] A number of celebrities own condominiums in the 146-unit building,[1] including Karyn White, Diahann Carroll, Kelly Osbourne, Robert Sherman, Jim Morris, Brody Jenner, Emma Watson, and Meg Whitman (since 2018).

[2] Historically, residents and owners have included: Lindsay Lohan (2006–2007);[3][4] Matthew Perry (until 2011);[5] PJ Harvey (29th floor, 2003–2018);[6] and Lily Collins (until 2019).