After spending the summer of 2004 at a rented house in Palo Alto, the early Facebook team decamped to a new rented property on Westbrook Avenue in Los Altos, California.
Dubbed Casa Facebook, the company was based here from September 2004 to January 2005, during the period that site reached 1 million users for the first time and was still known as Thefacebook. Mark Zuckerberg lived here during this time, along with Dustin Moskovitz, Sean Parker and other early Facebook employees.
It was from here that Facebook moved into its first office in Palo Alto.