2025 Corporate Sustainability Report: ESRT

ENVIRONMENTAL

INTRODUCTION

CORPORATE CITIZENSHIP

GOVERNANCE AND TRANSPARENT REPORTING

APPENDICES

ESRT Version 2.0

Targets and Performance Sustainability Guidelines and Policies

Energy

Data-Driven Performance Innovation

GHG Emissions

Roadmap to Building Efficiency

Water

Waste Healthy Buildings Biodiversity Tenant Engagement

A Step by Step Guide

The results of each building’s deep energy retrofit study show four to five interactive packages of projects, which build incrementally for increased impact on energy and emissions reduction. Each package includes a specific set of incremental energy conservation measures (ECM) that may be implemented in a building over a 10- to 15-year period based on equipment lifecycle and tenant renovations. ESRT follows a simple and impactful program to reuse, retrofit, retro-commission, and modernize existing buildings, several of which are prewar trophy buildings like the Empire State Building. Equipment is retrofitted and retro-commissioned through its useful life. It is then replaced with the most efficient system for optimal balance between energy reduction and internal rate of return. Measures are strategically phased to align with tenant renovations and lease roll, as well as to optimize economic returns, tenant comfort, and healthy sustainable building performance. Our key findings from these analyses at the Empire State Building, and in each of our commercial and multifamily properties, are that it is technically and economically feasible to achieve these deep energy reductions by 2035, and this must be done in partnership with the building tenants and the grid . Grid emissions reductions per the CLCPA and building measures each contribute equally to achieve these targets. At this time, CLCPA is behind its target, which may proportionally impact our ability to meet our goals as they are dependent on the CLCPA grid commitments.

Understand Existing Conditions and Calibrate Energy Model

Update Decarbonization Plan Accordingly

Analyze Capital and Leasing Plans

Commissioning and Monitoring to Verify Results

Conduct Engineering Analysis

Pilot New Technologies Before Scaling

and Evaluate Business Case

ESRT Energy Retrofit Process

Integrate with Leasing Team and Lease Contracts

Target Low-Cost Optimizations, Load Reduction, and High CapEx Investments

Confirm Business Case and Incentives

Develop Tenant Guidelines and Review Fitout Designs

Align with Tenant Lease Roll and System Lifecycle

Engage Building Team and Align with Capital Planning

25 EMPIRE STATE REALTY TRUST 2025 CORPORATE SUSTAINABILITY REPORT

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