American Assets Trust Inc is a self-administered real estate investment trust based in the United States. The company invests in, operates, and develops retail, office, residential, and mixed-use properties. Properties are predominantly located in South California, Northern California, Oregon, Washington, and Hawaii. American Assets operates through four segments based on property type: retail; office; mixed-use, which consists of retail and hotel components; and multifamily, which includes the company's apartment properties. The retail and office segments collectively contribute the majority of the total revenue.