Marc Andreessen, Lauren Powell Jobs, Michael Moritz
Left to right: Marc Andreeseen, Lauren Powell Jobs, and Michael Moritz are some of the prominent Silicon Valley investors who have backed Flannery Associates's pursuit to build a new city in California.
  • A company called Flannery Associates has been purchasing land in a county near San Francisco.
  • The company has spent up to $15,000 per acre, court documents show.
  • Silicon Valley has long sought to build a new city from scratch.

A mystery company backed by Silicon Valley billionaires has been snatching up land in a northern California county in an apparent bid to build an entirely new city in the state.