Parishioners hugged and cried in front of the smouldering wreckage in the late morning.
Auckland Catholic Diocese general manager James van Schie, who was also at the church in the hours after the fire, said the parish was established in 1921 and the church was built in the late 1950s.
“For over 100 years, it’s been a vital part of the fabric of the Avondale community,” he said.
“There are so many Aucklanders who trace their family history here; baptisms, funerals, weddings. It is a vibrant parish.”
Fire and Emergency Assistant Commander Phil Larcomb said they were called to Great North Rd just after 4am, where the brick St Mary’s Catholic Church, in front of St Mary’s School, was on fire and had been “severely damaged”.