Seritage Growth Properties Seritage is principally engaged in the ownership, development, redevelopment, management and leasing of diversified and mixed-use properties throughout the United States. As of September 30, 2021, the Company’s portfolio consisted of interests in 170 properties comprised of approximately 10.0 million square feet of GLA or build-to-suit leased area (approximately 8.0 million at share), approximately 4.0 million of which is held by unconsolidated entities (approximately 2.0 million at share), approximately 600 acres held for or under development and approximately 10.0 million square feet of GLA or approximately 850 acres to be disposed of.