St. Anthony's Church follows a Latin Cross plan.
The exterior of the front part of the church, which is the oldest section, is composed of quarry-faced, coursed, ashlar limestone.
It reflects a period when highly skilled stonemasons and finely worked materials were not readily available in Davenport.
The structure features a gable front, deep eave returns and a modillion frieze.
Crosses are located at the peaks of the three gable ends.
The rear of the church has a hip roof.
The interior plan features a larger central nave that is flanked by side aisles.
The apse, which appears rounded on the interior, is squared on the exterior.
As mentioned earlier, the back addition to the church is covered in permastone.
The round arch is used throughout the church.
It is found in the stained glass windows, the vault of the ceiling, and on the reredos in the apse.
It is also found on the main entrance into the church, which is capped with a fan-shaped tympanum.
The stained glass is original to each section of the building when it was built.
The ceiling features paintings over the center aisle.
From the front entrance to the altar they depict Jesus raising Lazarus from the dead (or possibly raising the daughter of Naim), the Assumption of Mary into Heaven, and Jesus healing the sick.
In the middle of the transept over the altar are symbols that represent the Four Evangelists.
The statues in the reredos include the Sacred Heart in the center and it is flanked by Saint Patrick and Saint John the Evangelist.
 A bas-relief of the Last Supper is on the former altar frontal.
There are also numerous other statues throughout the church.
The church is set back from the street and is located in a park-like setting with mature vegetation.

The former school building, which is also the original church, is a two-story, side gable building with a projecting entrance pavilion.
It was originally a frame structure with a brick veneer exterior that has since been covered with permastone.
Initially, it was rectangular in shape, but additions have created a cross-shaped plan.
A round arch in the entrance gable end is its prominent decorative feature.
There is also a cross above the entrance pavilion.

The rectory, no longer extant, was also a frame structure with brick veneer that was covered with permastone.
Designed in a vernacular style, it was a two-story, three bay front-gable house with a two-story side wing and further additions.
A portion of one of those additions that included the garages remains behind the Gathering Center.
St. Anthony's Church follows a Latin Cross plan. The exterior of the front part of the church, which is the oldest section, is composed of quarry-faced, coursed, ashlar limestone. It reflects a period when highly skilled stonemasons and finely worked materials were not readily available in Davenport. The structure features a gable front, deep eave returns and a modillion frieze. Crosses are located at the peaks of the three gable ends. The rear of the church has a hip roof. The interior plan features a larger central nave that is flanked by side aisles. The apse, which appears rounded on the interior, is squared on the exterior. As mentioned earlier, the back addition to the church is covered in permastone. The round arch is used throughout the church. It is found in the stained glass windows, the vault of the ceiling, and on the reredos in the apse. It is also found on the main entrance into the church, which is capped with a fan-shaped tympanum. The stained glass is original to each section of the building when it was built. The ceiling features paintings over the center aisle. From the front entrance to the altar they depict Jesus raising Lazarus from the dead (or possibly raising the daughter of Naim), the Assumption of Mary into Heaven, and Jesus healing the sick. In the middle of the transept over the altar are symbols that represent the Four Evangelists. The statues in the reredos include the Sacred Heart in the center and it is flanked by Saint Patrick and Saint John the Evangelist.  A bas-relief of the Last Supper is on the former altar frontal. There are also numerous other statues throughout the church. The church is set back from the street and is located in a park-like setting with mature vegetation.
The former school building, which is also the original church, is a two-story, side gable building with a projecting entrance pavilion. It was originally a frame structure with a brick veneer exterior that has since been covered with permastone. Initially, it was rectangular in shape, but additions have created a cross-shaped plan. A round arch in the entrance gable end is its prominent decorative feature. There is also a cross above the entrance pavilion.
The rectory, no longer extant, was also a frame structure with brick veneer that was covered with permastone. Designed in a vernacular style, it was a two-story, three bay front-gable house with a two-story side wing and further additions. A portion of one of those additions that included the garages remains behind the Gathering Center.
St. Anthony's Catholic Church (Davenport, Iowa)