According to Stephen Fox’s Houston Architectural Guide, `The Gibraltar Building was the first building in Houston to have walls faced entirely in heat absorbing, solar gray glass. The Fannin front and the south-facing walls have been refaced in siver reflective glass.`
According to Texas Architect, `The building was designed to combine dignity and elegance with a freedom from institutional conventions, but with a distinctive appearance and facilities readily accessible to pedestrians and motorists.`
The building was awarded with an Architecture, 1959 Merit Award by Texas Architect.