A large Downtown Madison Catholic church wants to convert a historic school building on its property into rental housing for college students, three years after a different housing proposal by the church hit snags and was abandoned. The latest proposal by leaders of Holy Redeemer Catholic Church, 120 W. Johnson St., would turn the former Holy Redeemer School into apartments at an estimated cost of $4.2 million, according to Monsignor Kevin Holmes, Holy Redeemer?s priest….The student housing would be open to anyone but targeted especially for students of St. Paul’s University Catholic Center on the UW-Madison campus, Holmes said. St. Paul’s recently had to eliminate a student housing component to its proposed new building due to concerns over the building’s mass and height.