ENVIRONMENTAL
INTRODUCTION
CORPORATE CITIZENSHIP
GOVERNANCE AND TRANSPARENT REPORTING
APPENDICES
Healthy Buildings
Targets and Performance Sustainability Guidelines and Policies
Energy
Data-Driven Performance Innovation ESRT Version 2.0 GHG Emissions
Roadmap to Building Efficiency
Water
Waste
Biodiversity Tenant Engagement
High Performance Healthy Buildings Indoor Environmental Quality For more than 15 years, ESRT has focused on healthy
buildings and pioneered and showcased many sustainability best practices through our renovations at the Empire State Building — practices we subsequently rolled out throughout our entire portfolio. ESRT believes in the power of building performance to improve productivity and well-being. Our industry-leading, comprehensive, state-of-the-art program focuses on operational best practices to ensure healthy and productive spaces include MERV 13 filters, air and water quality tests, CO 2 sensors, green cleaning practices, integrated pest management strategies, and low- emitting materials. In NYC, 86% of our portfolio is Fitwel certified, and 100% is WELL Health-Safety Rated. Bipolar ionization air purification is installed in over 3.2 million square feet of office space across our portfolio. ESRT was the first commercial portfolio in the Americas to achieve the WELL Health-Safety Rating and among the first to be certified five times. The WELL Health-Safety Rating — developed by the International WELL Building Institute — is an evidence-based, third-party rating focused on operational policies, maintenance protocols, emergency plans, and stakeholder education to address a post- pandemic environment and broader health- and safety- related issues. In 2025, ESRT received the Health and Safety Leadership award based on our company’s leadership in the creation of people-first places.
HUMAN EXPERIENCE • Demand control ventilation to ensure adequate introduction of fresh outside air • Advanced Lutron Vive lighting control systems to optimize
AIR FILTRATION • MERV 13 filters that filter dust, pollen, mold, bacteria, and particulate matter
PERFORMANCE VERIFICATION
daylight, glare, and productivity balanced with energy efficiency
• Annual comprehensive third-party air and water quality testing
AIR PURIFICATION • Active bipolar ionization
OPERATIONS • Integrated pest management practices • Certified green cleaning products • Filters changed consistently
system that delivers exceptional air quality
HEALTHY MATERIALS / PRODUCTS
• Low or no VOC and no Red List materials • High Performance Design and Construction Guidelines • Health Product Declaration, Environmental Product Declaration, and local recycled materials
IEQ SENSORS • CO
2 sensors tied to outside
air modulation • IEQ sensors that measure in real time CO 2 , VOCs, particulate matter 2.5 and 10, and O 3 levels
36 EMPIRE STATE REALTY TRUST 2025 CORPORATE SUSTAINABILITY REPORT
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