Capitol Tower


Skanska Commercial Development


Construction Cost
$185 million

Completion Date
Under Construction

Project Size
35 stories
700,000 SF
1,360 spaces

Pursuing LEED Platinum®

Capitol Tower


Walter P Moore is providing structural, civil, traffic engineering and parking consulting services for this new high rise office building in downtown Houston. The project includes 24 floors of office space above a new 10-story podium parking garage.

The front of the building faces Capitol rather than Rusk, an improvement that will ease traffic flow for those entering downtown from the north, and features a glass facade accented by LED-lined light boxes. The plaza opens to the north side, where the orientation allows for maximum daylight. The underground tunnel bounded by Capitol, Milam, Rusk, and Travis includes a two-level plaza filled with restaurants, retail, and amenities with an inviting common area.

Capitol Tower was one of 100 projects selected for the Beta test of LEED Version 4, and is one of three projects in the world to achieve LEED v4 Core and Shell Platinum Pre-Certification. To pursue Platinum certification the project needed to achieve the majority of the revamped Materials and Resources credits. This included the Whole Building Life Cycle Assessment credit, which Walter P Moore led. The Capitol Tower is the only project in the LEED v4 Beta program to attempt this credit. To achieve the credit, which recognizes a building’s reduction in the impacts associated with the manufacturing and installing materials, Walter P Moore used the ATHENA Impact Estimator to help quantify the significant sources of environmental impacts. Based on the studies the team developed a strategy of aggressive cement minimization, which lead to a projected 19% reduction in Global Warming Potential, a 12% reduction in acidification.