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Note 7 - Mortgage Notes Payable - Mortgage Notes Payable (Details) - USD ($) | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Mortgage Notes Payable, net |  | $ 94,603,804 | $ 102,094,094
Mortgage Notes [Member] |  |  |
Mortgage Notes Payable |  | 95,419,788 | 102,842,069
Unamortized loan costs |  | (815,984) | (747,975)
Mortgage Notes [Member] | Dakota Center [Member] |  |  |
Mortgage Notes Payable | [1] | $ 8,873,095 | 9,091,395
Interest rate | [1],[2] | 4.74% |
Mortgage Notes [Member] | Research Parkway [Member] |  |  |
Mortgage Notes Payable | [3] | $ 0 | 1,526,860
Mortgage Notes [Member] | Arapahoe Center [Member] |  |  |
Mortgage Notes Payable |  | $ 8,670,000 | 8,670,000
Interest rate | [2] | 6.75% |
Mortgage Notes [Member] | Union Town Center [Member] |  |  |
Mortgage Notes Payable | [3] | $ 0 | 7,709,746
Mortgage Notes [Member] | One Park Centre [Member] |  |  |
Mortgage Notes Payable | [4] | $ 5,854,250 | 5,919,517
Interest rate | [2],[4] | 4.77% |
Mortgage Notes [Member] | Genesis Plaza [Member] |  |  |
Mortgage Notes Payable | [4] | $ 5,749,126 | 5,813,843
Interest rate | [2],[4] | 4.71% |
Mortgage Notes [Member] | Shea Center II [Member] |  |  |
Mortgage Notes Payable | [4] | $ 16,507,833 | 16,660,803
Interest rate | [2],[4] | 4.92% |
Mortgage Notes [Member] | West Fargo Industrial [Member] |  |  |
Mortgage Notes Payable | [5] | $ 5,750,000 | 5,750,000
Interest rate | [2],[5] | 7.14% |
Mortgage Notes [Member] | Grand Pacific Center [Member] |  |  |
Mortgage Notes Payable | [6] | $ 6,424,930 | 6,460,405
Interest rate | [2],[6] | 6.35% |
Mortgage Notes [Member] | Baltimore [Member] |  |  |
Mortgage Notes Payable |  | $ 5,670,000 | 5,670,000
Interest rate | [2] | 4.67% |
Mortgage Notes [Member] | Mandolin [Member] |  |  |
Mortgage Notes Payable |  | $ 3,474,942 | 3,508,702
Interest rate | [2] | 4.35% |
Mortgage Notes [Member] | Subtotal, Presidio Property Trust, Inc. Properties [Member] |  |  |
Mortgage Notes Payable |  | $ 66,974,176 | 76,781,271
Mortgage Notes [Member] | Model Home [Member] |  |  |
Mortgage Notes Payable | [7] | $ 28,445,612 | $ 26,060,798
Mortgage Notes [Member] | Model Home [Member] | Minimum [Member] |  |  |
Interest rate | [2],[7] | 6.00% |
Mortgage Notes [Member] | Model Home [Member] | Maximum [Member] |  |  |
Interest rate | [2],[7] | 8.00% |
[1] | The non-recourse loan on the Dakota Center property matured on July 6, 2024. Management has been in negotiations with the special servicer of the loan in modifying and/or extending the loan or possibly selling the building. We have not been able to come to an agreement regarding a situation in which the loan is modified or extended. During December 2024, the lender agreed to the broker the Company would use to sell the property to settle the non-recourse debt. As of June 30, 2025, the note payable is included in the mortgage notes payable related to properties held for sale, net on the consolidated balance sheet. The loan is considered non-recourse and we will not be required to make up the difference if the property sells for less than the loan balance. See Note 4. Real Estate Assets above for further discussion on impairment of the property.
[2] | Interest rates as of June 30, 2025.
[3] | These properties were sold during February 2025 and their loan balances were paid in full.
[4] | These mortgage loans mature within the next twelve months and management is reviewing various options for the loan maturity, including but not limited to refinancing, restructuring and or selling these properties. As we get closer to the loan maturity date, the Company will finalize our plans. As of June 30, 2025, we have finalized terms sheets to refinance the loans on Genesis Plaza and One Park Centre from third party lenders, which are expected to close in August and September 2025. We have begun exploring options for the Shea Center II loan which matures in January 2026, although there can be no guarantee we will be successful in refinancing the properties.
[5] | On June 20, 2024, the Company, through its subsidiary, refinanced the mortgage loan on our West Fargo Industrial properties, and entered into a loan agreement for approximately $5.75 million, a term of five years, with an interest rate of 7.14%. The loan agreement has a Debt Service Coverage Ratio ("DSCR") minimum of 1.20 to 1.00 as calculated by Lender, in which: (a) the numerator is the Underwritten Net Cash Flow, and (b) the denominator is the annual Debt Service, tested at the end of each fiscal quarter.
[6] | On May 5, 2023, the Company, through its subsidiary, refinanced the mortgage loan on our Grand Pacific Center property and entered into a construction loan related to the tenant improvement associated with the KLJ Engineering LLC lease to occupy 33,296 square feet of the building. The refinanced loan is for approximately $3.8 million, a term of 10 years, with an interest rate of 6.35%, for the first 60 months. The interest rate is subject to reset in year five on June 10, 2028. The construction loan is for approximately $2.7 million, a term of 10 years, and will begin amortizing in year three, with an interest rate of 6.35%, for the first 60 months. The interest rate is subject to reset in year five on June 10, 2028. As of June 30, 2025, we had fully drawn down the loan amount of approximately $2.7 million on the construction loan.
[7] | As of June 30, 2025, there were five model homes included as real estate assets held for sale. Our model homes have stand-alone mortgage notes at interest rates ranging from 6.0% to 8.0% per annum as of June 30, 2025.

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