Tesla Motors Announces Factory in Northern California | Tesla
PALO ALTO, Calif. - Tesla Motors has purchased the former NUMMI factory in Fremont, California, where it will build the Model S sedan and future Tesla vehicles. As recently as April of 2010, the NUMMI factory was used by Toyota to produce the Corolla and Tacoma vehicles using the industry-leading Toyota production system. It is one of the largest, most advanced and cleanest automotive production plants in the world.
https://www.tesla.com/blog/tesla-motors-announces-factory-northern-california