[1] The Old Stone House stands a short way east of Winooski's central Rotary Park, on the north side of East Allen Street between Cascade Way and Abenaki Way.

It is a 2+1⁄2-story structure, built out of rough-cut stone and capped by a side gable roof.

It has a five-bay front facade, with sash windows in the outer bays set in rectangular openings.

The front entrance is at the center, flanked by wide sidelight windows, and there is a second doorway above on the second level, set at a recess with an iron balustrade across the lower part of the opening.

[2] The house was supposedly built around 1790 by Roswell Butler, and is the city's only surviving building from the period immediately following the American Revolutionary War.