Verified Healthy Building


CIM Group

Verify ID:


Expiration date:

December 22, 2022 - December 21, 2024

Verification Mark

Facility Information

55 Hawthorne, San Francisco, CA 94105 

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 Hawthorne is an 11-story, Class A creative office building and five-level parking structure located in the highly desirable South Financial District submarket of San Francisco. The building has easy access to public transportation such as the Bay Area Rapid Transit as well as easy access to Highway 80/ The Bay Bridge. 55 Hawthorne was originally constructed in 1970 on a 0.58 acre parcel and today offers tenants an ideal modern work environment with abundant parking and a roughly 5,000 square foot roof deck. Additionally, 55 Hawthorne is surrounded by some of the City's finest restaurants, hotels, and tourist attractions.  

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.