The present Colonial-style church was designed by Polak and Sullivan of New Haven, CT.[citation needed] In the early 1850s Rev.

Thomas Synnott, of the Church of St. James in Bridgeport would visit Fairfield and celebrate Mass at the home of one of the local Catholics.

Synnott erected a frame building seating about 300 and in June 1854 it was dedicated by Bishop Bernard O'Rielly of Hartford, under the patronage of St. Thomas Aquinas.

The following August, the thirty-two year old Mullen died suddenly of a heart condition after completing some sick calls.

[3] A new brick church building in Romanesque style with a seating capacity of 650 was dedicated on Thanksgiving Day, November 27, 1894.

"[6] Another annual event is the Holiday Craft Fair and Tag Sale hosted by the Knights of Columbus Father Coleman Council #2616 Columbiette's Auxiliary in the parish gym.