Press Release

Legacy Tower Achieves LEED Gold and Environmental Star of Excellence

October 26, 2015

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Class AA Office Project Earns 68 Points; Recognized for Best-In-Class Building Strategies and Practices

DALLAS, TX – Trammell Crow Company, joint venture partner Principal Real Estate Investors, along with project architect HKS, announce Legacy Tower has been awarded Leadership in Energy and Environmental Design (LEED) Gold Certification by the U.S. Green Building Council. In addition, the project has also been awarded the Environmental Star of Excellence Award for Green Buildings by the City of Plano.

“We are pleased to have delivered a product with a level of design and construction materials that we believe are unmatched in Legacy Business Park,” said Jeff DeBruin, Principal for Trammell Crow Company’s Dallas/Fort Worth Business Unit. “Achieving a highly sustainable office tower was a key goal for our design team from the outset of the project. Our main focus was on water, energy and materials conservation.”

The office tower, which features 342,033 square feet of Class AA space, is located at the southeast corner of the Dallas North Tollway and Legacy Drive, is designed to achieve an energy reduction more than 26 percent improvement compared to the ASHRAE 90.1 – 2007 criteria. This was accomplished through the HVAC systems, lighting systems and the performance of the thermal envelope. For example, the project employs a Variable Frequency Drive on all pumps, fan motors and water-side economizers to allow for free cooling on colder days. Heat generated from artificial lighting was minimized by reducing general lighting densities and providing systems that offer tenants the opportunity to install daylight harvesting systems and occupancy sensors. Finally, the window-to-wall ratio was optimized along with double-glazed windows with a low solar heat gain to help reduce heat gain in the summer months.

The location provides occupants the benefit of the public transit system, which has multiple stops near the site, and a multi-level parking garage that offers discounts to those driving fuel-efficient vehicles. In efforts to create an inviting landscape and conserve water without having a negative impact on the local clean water supply, a cistern that captures the condensate water was installed to handle all landscape irrigation in addition to installing low-flow water fixtures and faucets with sensors in the office building.

Through careful monitoring of waste removal, more than 80 percent of the construction waste, including the demolition of the previous building, was prevented from entering landfills. Additionally, the team reviewed materials for a healthy breathing environment, products that utilized recycled content, and for products that were sourced and manufactured within the region.

“Sustainability was a key component in the design and construction of Legacy Tower,” said Owen McCrory with HKS. “The combination of the location, water reuse and reducing strategies, efficient energy design and sustainable materials provided the possibility for a LEED Gold facility. The energy reducing strategies helped reduce greenhouse gases by 52 percent as compared to similar type existing facilities. Tenants will enjoy a healthy, energetic environment along with reduced energy and water demands.”

About HKS
HKS, one of the nation’s leading architects, operates from 26 worldwide offices with their corporate headquarters in Dallas.  Their project experience includes corporate headquarters, office buildings, healthcare facilities, sports facilities, hotels and resorts, government and aviation facilities, public buildings, high rise multi-family housing, educational facilities, science and technology projects located in 1,648 cities throughout 84 countries.

About Principal Real Estate Investors
Principal Real Estate Investors manages or subadvises $60.3 billion in commercial real estate assets. The firm’s real estate capabilities include both public and private equity and debt investment alternatives. Principal Real Estate Investors is the dedicated real estate group of Principal Global Investors, a diversified asset management organization and a member of the Principal Financial Group®.

About Trammell Crow Company
Trammell Crow Company (TCC), founded in 1948, is one of the nation’s leading developers and investors in commercial real estate. The Company has developed or acquired nearly 2,600 buildings valued at nearly $60 billion and over 540 million square feet. As of June 30, 2015, TCC had $6.0 billion of projects in process and $3.7 billion in its pipeline.

Trammell Crow Company’s teams are dedicated to building value for its clients with professionals in 16 major cities throughout the United States. The company serves users of and investors in office, industrial, retail, healthcare, multi-family residential, through its operating subsidiary High Street Residential, and mixed use projects. For those who occupy real estate, TCC can execute the development or acquisition of facilities tailored to meet its clients’ needs. For investor clients, the company specializes in joint venture speculative development, acquisition/re-development ventures, build-to-suit development, or providing incentive-based fee development services.

TCC is an independently operated subsidiary of CBRE Group, Inc. (NYSE:CBG), a Fortune 500 and S&P 500 company headquartered in Los Angeles, and the world’s largest commercial real estate services and investment firm (in terms of 2014 revenue). For more information visit

Trammell Crow Company

Trammell Crow Company (TCC) is a global commercial real estate developer and wholly-owned subsidiary of CBRE Group, Inc. (NYSE:CBRE), a Fortune 500 and S&P 500 company headquartered in Dallas. Founded in 1948, TCC has developed or acquired nearly 2,900 buildings valued at $75 billion and over 655 million square feet. As of December 31, 2023, TCC had $15.8 billion of projects in process and $13.3 billion in its pipeline. It employs 650 professionals in 26 major cities throughout the United States and Europe. The company serves users of and investors in office, industrial/logistics, healthcare, life sciences and mixed-use projects, as well as multi-family residential through its operating subsidiary High Street Residential. For more information visit