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Related Party Disclosures | 12 Months Ended
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Dec. 31, 2023
Related Party Transactions [Abstract] |
Related Party Transactions Disclosure | 16. Related Party Transactions Raymond A. Ritchey’s brother was employed by a real estate brokerage firm and participated in brokerage activities for which the Company paid the firm approximately $0.5 million, $1.6 million and $1.9 million for the years ended December 31, 2023, 2022 and 2021, respectively. The Company’s contract with this real estate brokerage firm ended on February 1, 2023 and as a result, it will not pay any further leasing commission to Mr. Ritchey’s brother. Mr. Ritchey is a Senior Executive Vice President of BXP. On June 5, 2023, a joint venture in which the Company owns a 30% interest repaid the construction loan collateralized by its 500 North Capitol Street, NW property and obtained new mortgage loans with related parties. The new mortgage loans have an aggregate principal balance of $105.0 million, bear interest at a weighted average fixed rate of 6.83% per annum and mature on June 5, 2026 (see Note 6). The Company funded $10.5 million of the refinancing at a fixed rate equal to 8.03% per annum. The loan has been reflected as a Related Party Note Receivable, Net on the Company’s Consolidated Balance Sheets. The Company has recognized interest income of approximately $0.6 million for the year ended December 31, 2023. 500 North Capitol Street, NW is an approximately 231,000 net rentable square foot premier workplace in Washington, DC. On July 13, 2018, the Company entered into a joint venture with a third party to acquire a development site at 3 Hudson Boulevard that, upon the future acquisition of additional available development rights, can accommodate an office tower with up to 2.0 million net rentable square feet located on the entire square block between 11th Avenue and Hudson Boulevard Park from West 34th Street to West 35th Street in New York City. The Company owns a 25% interest in, and is the managing member of, the joint venture. The Company provided $80.0 million of mortgage financing to the joint venture that bears interest at a variable rate equal to Term SOFR plus approximately 3.61% per annum and matures on February 9, 2024 (see Note 6 and 17). The loan has been reflected as a Related Party Note Receivable, Net on the Company’s Consolidated Balance Sheets. The Company has recognized interest income of approximately $8.9 million, $5.6 million and $3.6 million for the years ended December 31, 2023, 2022 and 2021, respectively. The Company's policy is to record notes receivable at their unamortized cost, net of any unamortized deferred fees or costs, premiums or discounts and an allowance for credit losses. Loan fees and direct costs associated with loans originated by the Company are deferred and amortized over the term of the note as interest income. In accordance with the 2021 Plan, and as approved by its Board of Directors, eight non-employee directors made elections to receive deferred stock units in lieu of cash fees for 2023. As a result of these elections, the aggregate cash fees otherwise payable to a non-employee director during a fiscal quarter are converted into a number of deferred stock units equal to the aggregate cash fees divided by the last reported sales price of a share of BXP’s Common Stock on the last trading of the applicable fiscal quarter. The deferred stock units are also credited with dividend equivalents as dividends are paid by BXP. The deferred stock units may be settled in shares of BXP’s Common Stock upon the cessation of such director’s service on the Board of Directors of BXP. The non-employee director compensation program provides, subject to certain conditions, the non-employee directors holding deferred stock units with the ability to elect, following cessation of their service on BXP’s Board of Directors, to diversify their investment elections into non-employer securities on a pre-tax basis and receive tax-deferred returns on such deferrals, which will ultimately be settled in cash. The Company’s obligation under the plan is that of an unsecured promise to pay the deferred compensation to the non-employee director in the future. At December 31, 2023 and 2022, the Company had maintained approximately $0.8 million and $0.6 million, respectively, in a separate account, which is not restricted as to its use. The Company’s liability under the plan is equal to the total amount of compensation deferred by the non-employee director and earnings on the deferred compensation pursuant to investments elected by the non-employee director. The Company’s liability as of December 31, 2023 and 2022 was approximately $0.8 million and $0.6 million, respectively, which is included in the accompanying Consolidated Balance Sheets. The terms of the non-employee director compensation program require the classification of these deferred stock units as temporary equity on the Consolidated Balance Sheets of Boston Properties, Inc. and Boston Properties Limited Partnership within Redeemable Deferred Stock Units. On December 16, 2021, in connection with the resignation of a director’s service on the Board of Directors of BXP, BXP issued 498 shares of Common Stock in settlement of the director’s outstanding deferred stock units. At December 31, 2023 and 2022, BXP had outstanding 119,471 and 97,853 deferred stock units, respectively.

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