With declining enrollment at Mimico High School, the building was offered to the Catholic board as the number of Catholics had been increasing with many Italian and Polish immigrants arriving in Mimico. This offer was refused and an Adult Learning Centre was opened there instead. The Centre has since swapped buildings with John English Elementary School. An estate on Lake Shore Boulevard was bought by the Polish government at this time to become their Toronto Consulate. A new railway station was built in the 1970s to service GO trains on the site of the 1855 station on the north side of the tracks just south of Christ Church on Royal York while the old 1916 station fell into disrepair.