[1] The Alvin O. Lombard House is in downtown Waterville, on the east side of Elm Street just south of the public library, in an increasingly commercial area.

It is a rambling 2+1⁄2-story wood-frame structure, with a gambrel roof, shingled exterior, and stone foundation.

Its front facade, facing west, is dominated by a projecting gabled section, which features a recessed porch flanked by polygonal windows bays, and a three-window recess in the upper part of the gable.

A two-story carriage house of similar styling is attached to the northeastern corner; it has a square cupola at the top of its gambrel roof.

The interior retains significant original decorative elements, despite its 1940s alteration into a multiunit residence.