The complex is located diagonally across the street from DART's St. Paul Station, which serves its Blue, Red, Orange, and Green light rail lines.

It also contains part of the Dallas Pedestrian Network, with shops and restaurants in the lower levels of the building and is connected to the Bullington Truck Terminal.

With the completion of the third phase, the Republic Center consisted of an entire city block bounded by Ervay, Bryan, St. Paul and Pacific Streets.

[5] In 1985 RepublicBank Corp., now one of the largest banks in the Southwest, announced plans to construct a 60-story, 1,400,000-square-foot (130,000 m2) building across the street on land now designated for Pacific Plaza Park.

[6] Plans were terminated in 1987 when rival InterFirst Corp. acquired the company, and Republic Center lost most of its tenants during the ensuing savings and loan crisis of the 1980s.

[8] At the time of completion, the spire atop Gables Republic Tower (an abstraction of the four-pointed star and referred to as the "rocket") contained a rotating beacon of light.

The following words by Karl Hoblitzelle, chairman of the board for Republic National Bank from 1945 to 1965, are set in bronze at the Ervay Street entrance:[5] "This building is dedicated to the principle that no institution can long endure unless it serves faithfully and unselfishly its country, its state and community."