The Old Mill is located just outside the center of West Tisbury, Massachusetts, in the central-western portion of Martha's Vineyard.

After that, the property went through a succession of owners and uses, including a tea room, art gallery, and auction house.

[1] The mill building is a modest 2+1⁄2-story brick and wood-frame structure on 26 acres (11 ha) of land, most of which is south of the Edgartown-West Tisbury Road.

[2] The mill itself consists of a rectangular main block, 7 bays wide and 4 deep, with an ell of 1.5 stories extending from its eastern elevation.

The building is built on a foundation of rubble, with brick on the lower levels that are exposed from the hillside.