It was the fifth tallest building in San Francisco when it was completed but is no longer in the top 30.

[2] In 1995, Shorenstein became the sole owner of the tower and invested US$5 million in an extensive lobby and plaza renovation.

[7] One California is one of very few[note 1] downtown office skyscrapers in San Francisco to feature corporate signage at the top of the tower.

When it was constructed, the building's signage read "Mutual Benefit Life" for the insurance company.

[10] In October 2005, the AirTouch signs were removed and replaced with the current US Bank logo.