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Organization and Ownership (Tables) | 12 Months Ended
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Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Real Estate Properties | Our stabilized portfolio of operating properties was comprised of the following properties at December 31, 2021:
| Number of Buildings |  | Rentable Square Feet (unaudited) |  | Number of Tenants |  | Percentage Occupied (unaudited)(1) |  | Percentage Leased (unaudited)
Stabilized Office Properties (2) | 120 |  |  | 15,456,528 |  |  | 422 |  |  | 91.9 | % |  | 93.9 | %
_______________________ (1)Represents economic occupancy. (2)Includes stabilized life science and retail space.
| Number of Projects |  | Number of Units |  | 2021 Average Occupancy (unaudited)
Stabilized Residential Properties | 3 |  | 1,001 |  |  | 78.0 | %
We did not have any properties held for sale at December 31, 2021. As of December 31, 2021, the following properties were excluded from our stabilized portfolio.
| Number of Properties/Projects |  | Estimated Rentable Square Feet (1) (unaudited)
In-process development projects - tenant improvement (2) | 3 |  | 1,604,000 |
In-process development projects - under construction | 2 |  | 946,000 |
In-process redevelopment projects - under construction (3) | 1 |  | 96,000 |
____________________ (1)Estimated rentable square feet upon completion. (2)Includes the development property acquired in Austin, Texas during the year ended December 31, 2021. Refer to Note 3 “Acquisitions” for additional information. (3)Excludes the two committed redevelopment projects at December 31, 2021, which are included in the stabilized portfolio since construction has not commenced.

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- Definition Tabular disclosure of real estate properties and units in those properties that are included in the discussion of the nature of an entity's operations. + References No definition available. + Details
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