Verified Healthy Building


John Akridge Management Company

Verify ID:


Expiration date:

July 27, 2022 - July 26, 2024

Verification Mark

Facility Information

410 and 412 First Street, SE are owned by the National Automobile Dealers Association Services Corporation (NADASC) and prominently located in the heart of Capitol Hill, just two blocks from the US Capitol. The ease of access via public transportation and proximity to major highways makes 410 and 412 First Street an ideal location for associations and lobbying firms. 410 First Street is three stories and is fully occupied with two lobbying groups and an iconic district restaurant, Bullfeathers. 412 First Street is also fully occupied and consists of two separate four-story buildings connected by a breezeway. The breezeway encloses a landscaped and furnished terrace for Clients to enjoy lunch or host private events. 412 also contains a privately managed, recently renovated, two-story garage offering reserved and daily parking packages, while also providing convenient parking spaces behind the building and along the breezeway. The property is the main office location for nearly 200 employees but the variety of Clients occupying this property marks.

Applicable To:

NADASC Capitol Hill Office Buildings, 410-412 First Street SE, Washington, DC 20003

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

Akridge is a comprehensive real estate services company that has invested in the Washington Metropolitan area for over four decades. It provides acquisitions, design and construction management, development, finance and asset management, leasing, and property management services. For over 45 years, the company has acquired, developed, or entitled more than 20.6 million square feet of office, industrial flex, residential, retail, and entertainment space. Akridge has another 10 million square feet in its active pipeline, currently manages approximately 3.3 million square feet, and has a portfolio with an estimated value of over $2.0 billion.  

Notable projects include the 1-million-square-foot Gallery Place, the internationally recognized Homer Building, and the 3-million-square-foot Burnham Place air rights development project at Union Station.  

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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.