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Organization
12 Months Ended
Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Organization Organization
Diversified Healthcare Trust is a real estate investment trust, or REIT, organized under Maryland law, which owns medical office and life science properties, senior living communities and other healthcare related properties throughout the United States. As of December 31, 2021, we wholly owned 390 properties located in 36 states and Washington, D.C. On that date, the gross book value of our real estate assets was $6,813,556.
As of December 31, 2021, we also owned a 20% equity interest in an unconsolidated joint venture that owns a life science property located in Boston, Massachusetts with approximately 1.1 million rentable square feet that was 100% leased with an average (by annualized rental revenues) remaining lease term of 7.0 years.