The Princeton Cooperative is a housing cooperative located on Capitol Hill, Seattle, Washington. It was built as the Ansonia apartment house in 1906 and was incorporated as a co-op in 1948. The building has 25 member-owned units and one unit owned by the corporation that is an amenity rental. There are three floors with eight units per floor. One unit is located in the basement as is communal storage and laundry facilities. The co-op is equipped with Wave G fiber internet service.