Drolet purchased a small former brick courthouse on Court Street, located about 300 yards east of the Vermont State House.

The Vermont General Assembly in its 1850 session agreed to sell additional land to the north of the court building so the parish could construct a vestry.

In 1856 Father Druon arrived, becoming pastor, and built a larger church immediately east of the former court house.

The new St. Augustine church was built in the Gothic Revival style of rusticated gray Vermont granite, with a slate roof, and a detached circular vestry in the northeast corner.

The original interiors were rich in finish, with elongated neogothic columns, lancet arches, polychrome stenciling on walls and ceilings in warm gray, madder rose, olive green and gold; stained glass, and paintings by Vermont artist Thomas Waterman Wood.

From 1968–69 a renovation of interior space, partly intended to respond to Vatican II changes in liturgy, removed the three original altars, chandeliers, and ornate mid-nave pulpit.

The polychrome cast-plaster stations of the cross were repainted in a monochrome gray color scheme, possibly intended to effect the look of stone.