St. Mary Help of Christians Catholic Church will break ground on the site for a new church on Sunday on Fairfield Street.

The parish has been looking into building a new church since 2006, when the need for a new place to gather for worship services first arose. The congregation grew, and, as a result, outgrew the church it was holding services in at the time, said the Rev. Father Gregory Wilson.

Wilson has been the pastor at St. Mary’s since August of 2011. He made modifications to the plans for the new church and began the capital campaign, a plan to raise money to help fund the building of the new church facility.

In 2006, when the current church, which is able to hold 280 people, was unable to seat the growing congregation, Mass was moved to St. Angela Hall. The new church will be able to welcome 900 people for mass and other services.

Wilson expects the church to take 18 months to complete.

“We are excited to be able to offer this to the community,” Wilson said.

The events for Sunday evening will begin with Mass at 5 p.m. in St. Angela Hall lead by Bishop Robert E. Guglielmone, Wilson and other priests. After Mass, Guglielmone will bless the site for the new church and then the congregation will gather for a reception.