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SCHEDULE OF REAL ESTATE PROPERTIES (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Real estate assets owned |  | $ 125,888 |  | $ 166,254 |  | $ 200,207 |
Garden Gateway Plaza [Member] |  |  |  |  |  |  |
Geographic location |  | Colorado Springs, Colorado | [1] | Colorado Springs, Colorado | [2] |  |
Real estate assets owned |  |  | [1] | $ 11,465 | [1],[2] | 11,428 | [2]
World Plaza [Member] |  |  |  |  |  |  |
Geographic location |  | San Bernardino, California | [3] | San Bernardino, California | [2] |  |
Real estate assets owned |  | $ 9,272 | [3] | $ 9,272 | [2],[3] | 8,305 | [2]
Executive Office Park [Member] |  |  |  |  |  |  |
Geographic location |  | Colorado Springs, Colorado | [1] | Colorado Springs, Colorado |  |  |
Real estate assets owned |  |  | [1] | $ 5,106 | [1] | 7,723 |
Waterman Plaza [Member] |  |  |  |  |  |  |
Geographic location |  | San Bernardino, California | [1] | San Bernardino, California | [2] |  |
Real estate assets owned |  |  | [1] | $ 3,500 | [1],[2] | 4,889 | [2]
Genesis Plaza [Member] |  |  |  |  |  |  |
Geographic location |  | San Diego, California |  | San Diego, California |  |  |
Real estate assets owned |  | $ 8,412 | [4] | $ 8,651 | [4] | 8,789 |
Dakota Center [Member] |  |  |  |  |  |  |
Geographic location |  | Fargo, North Dakota |  | Fargo, North Dakota |  |  |
Real estate assets owned |  | $ 8,694 |  | $ 8,597 |  | 8,855 |
Grand Pacific Center [Member] |  |  |  |  |  |  |
Geographic location |  | Bismarck, North Dakota |  | Bismarck, North Dakota |  |  |
Real estate assets owned |  | $ 5,525 |  | $ 5,684 |  | 5,914 |
Arapahoe Center [Member] |  |  |  |  |  |  |
Geographic location |  | Centennial, Colorado |  | Centennial, Colorado |  |  |
Real estate assets owned |  | $ 8,901 |  | $ 9,233 |  | 9,748 |
Union Town Center [Member] |  |  |  |  |  |  |
Geographic location |  | Colorado Springs, Colorado |  | Colorado Springs, Colorado |  |  |
Real estate assets owned |  | $ 9,212 |  | $ 9,345 |  | 9,612 |
West Fargo Industrial [Member] |  |  |  |  |  |  |
Geographic location |  | Fargo, North Dakota |  | Fargo, North Dakota |  |  |
Real estate assets owned |  | $ 6,996 |  | $ 7,061 |  | 7,212 |
The 300 N.P [Member] |  |  |  |  |  |  |
Geographic location |  | Fargo, North Dakota |  | Fargo, North Dakota |  |  |
Real estate assets owned |  | $ 3,218 |  | $ 3,280 |  | 3,405 |
Research Parkway [Member] |  |  |  |  |  |  |
Geographic location |  | Colorado Springs, Colorado |  | Colorado Springs, Colorado |  |  |
Real estate assets owned |  | $ 2,392 |  | $ 2,438 |  | 2,512 |
One Park Centre [Member] |  |  |  |  |  |  |
Geographic location |  | Westminster, Colorado |  | Westminster, Colorado |  |  |
Real estate assets owned |  | $ 8,072 |  | $ 8,586 |  | 8,518 |
Highland Court [Member] |  |  |  |  |  |  |
Geographic location |  | Centennial, Colorado | [1],[5] | Centennial, Colorado | [2] |  |
Real estate assets owned |  |  | [1],[5] | $ 10,500 | [1],[2],[5] | 11,421 | [2]
Shea Center II [Member] |  |  |  |  |  |  |
Geographic location |  | Highlands Ranch, Colorado |  | Highlands Ranch, Colorado |  |  |
Real estate assets owned |  | $ 20,340 |  | $ 21,026 |  | 21,853 |
Mandolin [Member] |  |  |  |  |  |  |
Geographic location | [5] | Houston, Texas |  |  |  |  |
Real estate assets owned | [5] | $ 4,899 |  |  |  |  |
Presidio Property Trust, Inc. Properties [Member] |  |  |  |  |  |  |
Real estate assets owned |  | $ 95,933 |  | $ 123,744 |  | 151,741 |
Model Home Properties [Member] |  |  |  |  |  |  |
Geographic location |  | TX, FL, IL, WI | [6] | AZ, FL, IL, PA, TX, WI | [7] |  |
Real estate assets owned |  | $ 29,955 | [6] | $ 42,510 | [6],[7] | 48,466 | [7]
Union Terrace [Member] |  |  |  |  |  |  |
Geographic location | [8] |  |  | Lakewood, CO |  |  |
Real estate assets owned | [8] |  |  |  |  | 8,425 |
Centennial Tech Center [Member] |  |  |  |  |  |  |
Geographic location | [8] |  |  | Colorado Springs, Colorado |  |  |
Real estate assets owned | [8] |  |  |  |  | $ 13,132 |
[1] | This property was sold during the nine months ended September 30, 2021.
[2] | Property held for sale as of December 31, 2020.
[3] | This property is held for sale as of September 30, 2021.
[4] | Genesis Plaza is owned by two tenants-in-common, each of which owns 57% and 43%, respectively, and we beneficially own an aggregate of 76.4%.
[5] | A portion of the proceeds from the sale of Highland Court were used in like-kind exchange transactions pursued under Section 1031 of the Internal Revenue for the acquisition of our Mandolin property. Mandolin is owned by NetREIT Palm Self-Storage LP, through its wholly owned subsidiary NetREIT Highland LLC, and the Company is the sole general partner and owns 61.3% of NetREIT Palm Self-Storage LP.
[6] | Includes three Model Homes listed as held for sale as of September 30, 2021.
[7] | Includes seven Model Homes that are listed as held for sale as of December 31, 2020.
[8] | This property was sold during the year ended December 31, 2020.

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