As Houston and Bellaire expanded, more affluent families moved into the area, bringing the financial support needed to hold a building program for the parish in the 1950s and early 1960s. The first permanent structure on the parish grounds was a wing of the school constructed in 1951. By 1956 the final wing of the school was completed, and construction began on the convent for the sisters and a rectory for the fathers. At the start of 1957, the parish began a fundraising campaign to build a permanent church. From the initial Mass in 1946 with 65 parishioners, the parish grew to include 1050 families in 1956.