It was originally rectangular-shaped, but late in the 19th century an addition was built on the rear of the house, transforming it into an L-shaped residence.

Adorning the front of the house is a centrally-located one-bay entrance porch supported by two fluted pilasters, all made of wood.

Turned balusters flank the porch and the several wooden steps that lead to a brick walkway surrounding the dwelling.

The chief front entrance to the Trumbull House is a single door with side lights and semi-elliptical fanlight.

On the south side of the house is a second basement entrance, and it is sheltered by a pedimented portico supported by two Doric columns.