[3] The Tulsa Preservation Commission identified the building location as 515 South Boston Avenue, which disagrees with other sources.

Exterior ornamentation on these floors reflect French Moderne design, featuring stylized flora and fauna, Egyptian motifs, and naturalistic forms.

The columns stop at a horizontal terra cotta beam which bears a crest with the initials "WP" surrounded by carved vines, fruits and flowers.

The cooling towers for the Philcade's air conditioning system were placed atop the two wings extending north, so that they could not be seen easily from the street level.

The arched ceiling is decorated with geometric designs that are hand painted in red, blue, green, purple, and brown.

[2][5] Floors 3 to 13 were devoted to multi-use office suites, having repetitive designs and lacking significant architectural detail.

[4][6] The Philcade and the Philtower are connected by a tunnel built in 1929 that runs beneath 5th Street, a distance of 80 feet (24 m).

[5] Some sources have said that Waite Phillips feared that he might be kidnapped by gangsters while walking between his home and his office, and that the tunnel would offer him more security.

The tunnel door beneath the Philcade is now locked at all times, making this segment closed to the public.