Essex Property Trust, Inc. operates as a real estate investment trust. The company is headquartered in San Mateo, California and currently employs 1,715 full-time employees. The firm acquires, develops, redevelops, and manages apartment communities in selected residential areas located on the West Coast of the United States. The firm defines its operating segments as the three geographical regions in which its communities are located: Southern California, Northern California, and Seattle metro. The company has ownership interests in approximately 257 apartment communities comprising over 62,000 apartment homes. The firm owns all of its interests in its real estate and other investments directly or indirectly through Essex Portfolio, L.P. The company invests primarily in apartment communities that are located in predominantly coastal markets within Southern California, Northern California, and the Seattle metropolitan area. The company focuses on acquiring and developing apartment communities in supply constrained markets and redeveloping its existing communities.