corporate office on a straight-line basis over the shorter of the estimated useful lives or the remaining lease term. Depreciation expense relating to our corporate assets is included in general and administrative expense in our condensed consolidated statements of income.
Determining whether expenditures meet the criteria for capitalization and the assignment of depreciable lives requires management to exercise significant judgment. Project costs that are clearly associated with the acquisition and development or redevelopment of a real estate project, for which we are the accounting owner, are capitalized as a cost of that project. Expenditures that meet one or more of the following criteria generally qualify for capitalization:
| ● | the expenditure provides benefit in future periods; and |
| ● | the expenditure extends the useful life of the asset beyond our original estimates. |
We define redevelopment properties as existing properties for which we expect to spend significant development and construction costs that are not reimbursements to tenants for improvements at the properties. When existing properties are determined to be redevelopment properties, the net carrying value of the buildings and improvements are transferred to construction in progress while the redevelopment activities are in process. Costs capitalized to construction in progress related to redevelopment properties are transferred to buildings and improvements at historical cost of the properties as the redevelopment project or phases of projects are placed in service.
Provision for Impairment. On a quarterly basis, we review current activities and changes in the business conditions of all of our properties prior to and subsequent to the end of each quarter to determine the existence of any triggering events or impairment indicators requiring an impairment analysis. If triggering events or impairment indicators are identified, we review an estimate of the future undiscounted cash flows for the properties.
Long-lived assets are individually evaluated for impairment when conditions exist that may indicate that the carrying amount of a long-lived asset may not be recoverable. The carrying amount of a long-lived asset to be held and used is not recoverable if it exceeds the sum of the undiscounted cash flows expected to result from the use and eventual disposition of the asset. Impairment indicators or triggering events for long-lived assets to be held and used are assessed by project and include significant fluctuations in estimated net operating income, occupancy changes, significant near-term lease expirations, current and historical operating and/or cash flow losses, construction costs, estimated completion dates, rental rates, and other market factors. We assess the expected undiscounted cash flows based upon numerous factors, including, but not limited to, construction costs, available market information, current and historical operating results, known trends, current market/economic conditions that may affect the property, and our assumptions about the use of the asset, including, if necessary, a probability-weighted approach if multiple outcomes are under consideration. Upon determination that an impairment has occurred, a write-down is recognized to reduce the carrying amount to its estimated fair value. We may adjust depreciation of properties that are expected to be disposed of or redeveloped prior to the end of their useful lives. No impairment losses were recognized during the six months ended June 30, 2024 and 2023.
Revenue Recognition. Our leases are triple-net leases, an arrangement under which the tenant maintains the property while paying us rent. We recognize revenue for each of the leases at our properties that are classified as operating leases on a cash basis due to the uncertain regulatory environment in the United States pertaining to the regulated cannabis industry, the limited operating history of certain tenants and the resulting uncertainty of collectability of lease payments from each tenant over the duration of the lease term. Additionally, for operating leases, contractually obligated reimbursements from tenants for recoverable real estate taxes, insurance and operating expenses are included in rental revenues in the period when such costs are incurred and reimbursed by the tenants. Contractually obligated real estate taxes that are paid directly by the tenant to the tax authorities are not reflected in our condensed consolidated financial statements.
Construction Loan. In June 2021, we executed a construction loan agreement with a developer, pursuant to which we agreed to lend up to $18.5 million for the development of a regulated cannabis cultivation and processing facility in California (the “Construction Loan”). We have an option to purchase the property, and may execute a negotiated lease with an affiliate of the developer or with another third party, if we determine to exercise our purchase option. In February 2023, we amended the Construction Loan to provide for, among other things: (1) the additional capital commitment of the borrower into the project of $1.0 million; (2) our agreement to fund an additional $4.5 million into the project; (3) an increase in the interest rate effective April 1, 2023; (4) an extension of the loan term to December 31, 2023; and (5) the provision of additional collateral from the borrower for the loan. Interest on the loan continued to accrue through March 31, 2023, with monthly payment of interest contractual required commencing April 1, 2023. In December 2023, we further amended the Construction Loan to extend the loan term to June 30, 2024, with an option for the borrower to extend the loan term to December 31, 2024 upon satisfaction of certain conditions and payment of an extension fee. The borrower exercised this extension option in June 2024. As of both June 30, 2024 and December 31, 2023, we