Verified Healthy Building


55 M DC Owner, LLC c/o Cushman and Wakefield

Verify ID:


Expiration date:

April 18, 2021 - June 17, 2022

Verification Mark

Facility Information

55 M Street SE, Washington, DC 20003

Applicable To:

See address above.

Marketing Claim Verified by UL Solutions

Verified Healthy Building for Indoor Air

Verification Method

UL’s Healthy Buildings Verification Mark for Indoor Air demonstrates that indoor spaces provide healthy indoor air quality (IAQ). It shows a commitment by building owners and managers to create and maintain indoor environments that support tenant health, well-being and comfort, backed by UL’s globally recognized expertise in IAQ and building health. These buildings meet rigorous performance criteria and have policies and plans in place for continual advancement of IAQ. To achieve the UL Healthy Buildings Verification Mark, spaces underwent a desktop audit and on-site visits that include visual inspections and performance testing to evaluate a range of building conditions. The program includes an annual comprehensive assessment coupled with surveillance at the mid-year point. The IAQ testing requirements verify that the building air meets rigorous standards. These standards are aligned with industry-recognized, third-party organizations such as the Environmental Protection Agency (EPA), the National Institute for Occupational Safety and Health (NIOSH), the World Health Organization (WHO) and the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), among others. All laboratory testing and analysis methodologies are informed by the EPA Compendium of Methods, ASTM D5197 and TO-17 for air sampling, and EPA methods.

About the Company

55 M is a nine-story 280,000 square foot, Class A office building located in the Capitol Riverfront submarket of Washington, D.C. The property, which was built in 2009 and renovated in 2021, is LEED Gold Certified and sits directly on top of the Navy Yard Metro station. The recent renovations at the property include an expansive lobby which provides space in which individuals and groups can work and congregate, a cutting-edge fitness center, and a 20,000 square foot rooftop, which includes a community garden. Private tenant terraces and a tenant-only bike and scooter sharing program provide tenants with ample access to the outdoors and the vibrant surrounding neighborhood. Please visit for additional information.

What is UL Verification?

UL Verification is an objective, science-based assessment that confirms the accuracy of marketing claims. Our independent assessment process scrutinizes the validity of specific advertising or promotional statements, giving you a way to separate verified fact from fiction.