Chelsea Property Group was acquired by Simon Property Group, Inc. in October 2004, and continues to operate from its headquarters in Roseland, New Jersey as a division of Simon.

Simon Property Group, Inc. is an S&P 500 company and the largest public U.S. real estate company. Simon is a fully integrated real estate company which operates from five retail real estate platforms:

Regional malls / Chelsea Premium Outlet Centers / The Mills / Community / lifestyle centers / International properties

Chelsea is the world's largest owner, developer and operator of upscale outlet centers. Its portfolio includes 49 Premium Outlet Centers; 40 are in the United States, seven in Japan, one in Korea and one in Mexico.
Chelsea's leading properties in the United States include Woodbury Common Premium Outlets, near New York City; Orlando Premium Outlets, in Orlando, Florida; Desert Hills Premium Outlets, near Palm Springs, California; Las Vegas Premium Outlets, in Las Vegas, Nevada and Chicago Premium Outlets, near Chicago, Illinois.