Cooper-Frost-Austin House

The Cooper–Frost–Austin House is a historic Colonial American house, built in 1681. It is located at 21 Linnaean Street, Cambridge, Massachusetts. It is the oldest extant home in Cambridge and is owned and operated as a non-profit museum by Historic New England. The house is rarely open for public tours, but private tours can be arranged during the summer months.

The house was built by Samuel Cooper on land that his father, Deacon John Cooper, had owned since 1657, and was first documented in 1689 in The Register Book of the Lands and Houses in the "New Towne". Its original structure was a single room and chimney bay in width, two and one half stories in height with an integral lean-to, containing a "low room," "little room," "kitchin," "Chamber," "kitchin Chamber," "Garret," and "Cellar," all of which still exist, as do the original chimney and a facade gable.