The college has invested more than $500 million in updating its facilities through public support of Measure R and Measure RR bonds. The college has a 250-acre farm; a working veterinary hospital; new science classrooms and laboratory facilities; a music, dance, and theater building; multi-media/internet connected classrooms; a new baseball complex; a football field; a putting green; two soccer fields; and is home of the world-famous Mt. SAC Relays. It has an Olympic size swimming pool, tennis courts, and a working farm which includes horses, cattle, sheep, swine, and a canine facility that works with a greyhound rescue group to rehabilitate retired racing dogs each semester. The school also has a wildlife sanctuary that supports a large variety of native species of birds, mammals, and insects. It consists of a lake, swamp, stream, pond, meadow, and forested area. It is one of the last "safe" places for nature to exist in Walnut due to increased development and a growing population.