Revered Sliwinski cleared the debt in three years but quickly realized that the current facilities were inadequate for the size of the parish.

[4] They purchased several properties between 1929 and 1930, despite the turmoil of the Great Depression, and retained Antoni A. Pyzdrowski as chief architect and engineer.

[4] The parish began ground breaking for the new church on October 8, 1939, with the Consulate of the Republic of Poland addressing the gathering.

Upon completion in 1940 the Holy Family Church was the largest religious structure in Lawrenceville's ninth ward, and due to the fact that the congregation consisted largely of Polish immigrants and their descendants, it was dubbed “the Polish Cathedral”.

The building is specifically representative of the late Romanesque Revival style, a subset of the eclectic period.

The church is a rare example of pre-World War II architecture with the fusing of modern design principles and historical sampling.