
James Renwick, Jr. who designed the new church building had no experience designing churches, instead instead he had a family background full of talent and influence, and family members on the church’s Vestry.
The rector, toured Europe extensively looking at church designs around the continent. He returned energized and adamant that the new church would be in the Gothic style. Renwick poured himself into the project and delivered. The new building was consecrated on March 7, 1846.
The windows were of the original building were of lightly tinted glass, not the majestic stained glass windows of today. The original steeple was made of wood, not marble; a marble steeple was eventually added in 1883. In 1879, Catharine Lorillard Wolfe donated funds for the building of the Chantry, a small chapel to be used as a Sunday School; she also provided the funds for the parish house situated between the Church and the Rectory. Her greatest gift was the Te Deum window, a soaring stained glass masterpiece that replaced the original East Window. It was her generosity that inspired other parishioners to follow; within ten years, 36 of the 46 stained glass windows were given.