Verified Healthy Building


Pennzoil Place - Metropolis

Verify ID:


Expiration date:

November 04, 2021 - January 03, 2023

Verification Mark

Facility Information

Pennzoil Place is the third largest office building in the Houston Central Business District (CBD), offering 1,409,713 square feet of net rentable area.  Houston Pennzoil Place, L.P., represented by Metropolis Investment Holdings, Inc., acquired the project in January 1999.  The project's twin 36-story trapezoidal shaped towers with sloped roofs are located at 711 Louisiana Street and 700 Milam Street, in the northern section of the Houston CBD.

Designed by Philip Johnson and John Burgee, and developed by Gerald D. Hines Interests, the project was completed in 1975 and is home to several international businesses.  Amenities are available on the Lobby and Mall levels, and include a coffee shop, restaurants, US Post Office and overnight delivery, floral shop, sundries shop, and on-site property management.  Pennzoil Place has a full-service health club located on ST Level 2.  The Walker @ Main Garage, opened in 2007, provides additional contract and visitor parking services for tenants.  The project offers below grade parking, 24x7 on-site security and monitoring.

Applicable To:

711 Louisiana Street, Houston, TX 77002 700 Milam, Houston, TX 77002

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

Metropolis, a privately held real estate company based in Chicago, owns a collection of distinctive, Class A office towers with over six million rentable square feet. Our properties are located in the central business districts of Chicago, Houston, Dallas, Philadelphia as well as San Francisco and offer exceptional value to our tenants. Additional investment holdings include: hotel interests, a downtown retail mall, multiple parking facilities and urban developable land. Our strategic land sites in Chicago, Houston, and Dallas offer opportunities for significant growth and development. For over 20 years Metropolis has maintained a well-established reputation for excellence in owning and managing iconic office assets. Our mission is to enable our customers to create a positive sense of belonging to their workspace. We believe our meticulous attention to detail, dedicated relationships and long-term ownership philosophy are what sets us apart. For more information please go to 

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.