Verified Healthy Building


Masaveu 900 G Washington, LLC

Verify ID:


Expiration date:

December 22, 2022 - December 21, 2024

Verification Mark

Facility Information

900 G Street NW, Washington, DC 20004 

Applicable To:

See Address Above

Marketing Claim Verified by UL Solutions

Verified Healthy Building for Indoor Air and Water

Verification Method

UL’s Healthy Buildings Verification Mark for Indoor Air and Water 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 and water 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

900 G Street NW is an award-winning and LEED Gold certified, 9-story trophy boutique office building in the East End submarket of Washington, D.C. The property is located on the corner of 9th Street and G Street, offering unrivaled sightlines to each floor through floor to ceiling glass. The project has helped to set a standard for trophy construction and represents a growing trend towards tenants desiring more efficient floor plates, full-tilt amenities, and high-end, meticulous quality design. 900 G is home to a collection of cutting-edge amenities such as a state-of-the-art fitness center, rooftop terrace lounge and penthouse conference room, available to all tenants. 900 G was already 80% pre-leased ,eight months prior to delivery, to the international law firm, Simpson Thacher & Bartlett, LLP; the national non-profit, American Legacy Foundation; the powerhouse lobbying firm, Roberti + White; the high-end furniture designer, Herman Miller; and BMW of North America, all of whom occupied the building by October of 2015.

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.