References to "we," "our," "us" and "our company" refer to American Assets Trust, Inc., a Maryland corporation, together with our consolidated subsidiaries, including American Assets Trust, L.P., a Maryland limited partnership, of which we are the sole general partner and which we refer to in this report as our Operating Partnership.
We are a full service, vertically integrated and self-administered real estate investment trust, or REIT, that owns, operates, acquires and develops high quality retail, office, multifamily and mixed-use properties in attractive, high-barrier-to-entry markets in Southern California, Northern California, Oregon, Washington, Texas and Hawaii. As of December 31, 2018, our portfolio is comprised of twelve retail shopping centers; eight office properties; a mixed-use property consisting of a 369-room all-suite hotel and a retail shopping center; and six multifamily properties. Additionally, as of December 31, 2018, we owned land at three of our properties that we classified as held for development and construction in progress. Our core markets include San Diego, the San Francisco Bay Area, Portland, Oregon, Bellevue, Washington and Oahu, Hawaii.
We are a Maryland corporation that was formed on July 16, 2010 to acquire the entities owning various controlling and noncontrolling interests in real estate assets owned and/or managed by Ernest S. Rady or his affiliates, including the Ernest Rady Trust U/D/T March 13, 1983, or the Rady Trust, and did not have any operating activity until the consummation of our initial public offering and the related acquisition of such interest on January 19, 2011. After the completion of our initial public offering and the related acquisitions, our operations have been carried on through our Operating Partnership. Our company, as the sole general partner of our Operating Partnership, has control of our Operating Partnership and owned 73.2% of our Operating Partnership as of December 31, 2018. Accordingly, we consolidate the assets, liabilities and results of operations of our Operating Partnership.