Item 2. PROPERTIES

W. R. Berkley and its subsidiaries own or lease office buildings or office space suitable to conduct their operations. At December 31, 2023, the Company had aggregate office space of 4,333,225 square feet, of which 1,042,156 were owned and 3,291,069 were leased.

Rental expense for the Company's operations was approximately $44,256,000, $43,383,000 and $44,051,000 for 2023, 2022 and 2021, respectively. Future minimum lease payments, without provision for sublease income, are $50,222,000 in 2024, $41,249,000 in 2025 and $166,192,000 thereafter.