The design of the chapel was made by Czech architect Antonin Nechodoma, who lived in Puerto Rico.

Armstrong worked with architect Pablo Ojeda O'Neill and with the contributions of private and government entities.

From 1990 to 1991, thanks to a $10,000 donation from the Senate of Puerto Rico, along with $5,000 more from Angel Ramos Foundation, the asbestos portions of the roof were replaced.

In 1992, the Jesus and the Children and the Holy Spirit stained-glass windows were restored, with a $22,000 donation from Esso Standard Oil Company.

The structure features a bell tower with four gargoyles that serve as a drainage system for the rain water.