A Grade II-listed 1950s church, closed in 2001 for repairs to its stained glass walls costing £500,000, is reopening in time for Christmas.
English Heritage and the Lottery provided a £135,000 grant
Our Lady of Fatima, in Harlow, Essex, has been described as "a fine example of mid-20th century architecture" by English Heritage.
About 60% of the church's wall surfaces consist of stained glass windows.
The repairs have been part funded by local fundraising and partly by English Heritage and the Heritage Lottery Fund.
The Parish raised £400,000 and English Heritage and the Lottery provided a £135,000 grant.
About 60% of the church's wall surfaces are stained glass
Father Andrew Forys, the Parish Priest, said: "I cannot describe how happy we are to be able to return to the church after more than four years of celebrating services in the parish hall."
John Neale, of English Heritage, said: "We are delighted to have been able to help the parish with the cost of repairing the remarkable stained glass windows of this fine modern church."
Our Lady of Fatima was designed by noted post-War architect Gerald Goalen in 1953 and built in built between 1958 and 1960.
The church's Sunday services are due to resume this coming Sunday.