San Francisco Mayor Gavin Newsom has confirmed that Zynga is building a new HQ. The seven-year lease on 270,000 square feet in the Townsend Center could contain as many as 2,000 employees.

Now is the time to invest in this city, said Newsom. The rents have never been better.

Zynga is now occupying the spot that was home to Sega of America, showing the shift of the gaming industry from consoles to other media. Zynga has expanded from 398 employees in September 2009 to to 1,200 employees in 2010.

Source: VentureBeat