Empire State Realty OP, L.P.

In the Company’s analysis of NOI, particularly to make comparisons of NOI between periods meaningful, it is important to provide information for properties that were owned by the Company throughout each period presented. The Company refers to properties acquired and/or stabilized prior to the beginning of the earliest period presented and owned by the Company through the end of the latest period presented as “Same Store”. Same Store therefore excludes properties that have not yet achieved stabilization, properties acquired and/or stabilized after the beginning of the earliest period presented and properties disposed of prior to the end of the latest period presented. Accordingly, it takes at least one year and one quarter after a property is acquired and/or achieves stabilization for that property to be included in Same Store. The

Company’s definition of Same Store also excludes properties classified as held for sale and disposed of subsequent to quarter-end and properties placed in receivership. For mixed-use properties, all same store property NOI is represented in the property category that comprises the majority of that mixed-use property's NOI. As of September 30, 2026, Same Store excludes 86-90 North 6 th Street, which was acquired in June 2025, 41-55 North 6 th Street, which was acquired in March 2026, 130 Mercer, which was acquired in December 2025, Metro Center, Stamford, CT, which was disposed in December 2025, 250 West 57 th Street, which was disposed in June 2026, and 1359 Broadway, which was classified as held for sale as of September 30, 2026. Prior period Same Store NOI has been adjusted to reflect properties added to or removed from Same Store in the current period as a result of the Company’s acquisition and disposition activity, as applicable.