It is under the care of the Immaculate Conception parish of the Roman Catholic Archdiocese of San Fernando.

The construction of the present-day church structures would have been started in 1641, when the convent of Guagua was relieved of paying its rent to San Agustin Monastery in Manila.

Father Jose Duque, a prolific church builder, was assigned parish priest of Guagua in 1661.

Father Carrillo, during his term as parish priest around 1762, signed a loan covering some of the properties of the local convent for the renovations of the church.

The facade has two levels topped with a pediment bearing volutes that contrast with the slender columns.