GARDEN GROVE, Calif. (KABC) -- The Diocese of Orange has received a $20 million donation to help revamp the Crystal Cathedral.
The gift came from a single donor who wants to remain anonymous, the Roman Catholic Diocese of Orange said on Wednesday.
It is the largest donation ever received by the Diocese of Orange.
The diocese said it plans to renovate the 34-acre campus and reopen the 2,000-seat sanctuary in 2017 as a cathedral for Orange County.
The diocese bought the property in 2012 after Crystal Cathedral Ministries declared bankruptcy.
The Associated Press contributed to this report.