Zynga to Buy Its San Francisco Headquarters for $228 Million

Zynga Inc., the online-game company that has gained 40 percent since going public in December, agreed to purchase its San Francisco headquarters building for $228 million.

Zynga “swooped in” with a pre-emptive offer as several real estate companies were in discussions to acquire the building in the South of Market area, said Michael Covarrubias, chief executive officer of San Francisco-based TMG Partners, which is selling the property. He declined to name the firms.