On March 16, 2021, the Catholic Church in the Philippines celebrated its 500th year of Christianity. Many Catholic Church structures from the Spanish colonial era still exist, but the span saw new plans and facade forms that radically changed Catholic Church designs in the Philippines. Post-war church designs have bolted from the traditional basilica and cruciform plans to more communal configurations that seem to be reaching out to the congregation. At the forefront of these non-traditional Catholic Church designs are several architects on the roster of National Artists of the Philippines, the highest honor conferred to a Filipino who had exemplary contributions in the field of art. The study embarked on actual church site observations and gathering relevant information on ecclesiastical spaces designed by national artists, focusing on those erected within the national capital region. A comparative analysis concerning the plan layout and facade form of churches presented the departure of these modern liturgical designs from the traditional colonial churches. Discourse with lay liturgical designers delved into acquiring insights into church designs and guidelines in the Philippines. Clergy assigned to the five churches under study at the time of the research underwent surveys to obtain first-hand information on the effects of the modern façade design and plan layout on the community and the Filipino religious culture. The research study sought to present the revolutionary changes in traditional ecclesiastical spaces as an epoch of transformation in Catholic Church designs in the Philippines for reference to future liturgical designs with sensitivity to and anticipation of plan advancement, culture adaptation, and trend progression brought about by the church’s changing landscape.