A 79-unit multifamily property known as John Winthrop, located at 1020 Seneca Street in Seattle’s First Hill neighborhood, has been listed for sale. The 39,504-square-foot asset sits on a 12,800-square-foot parcel and is offered on a fee-simple basis, but no pricing guidance has been disclosed at this time. Kidder Mathews is representing the seller, an entity affiliated with Sentinel Real Estate.

Built in 1925, the five-story building features a residential mix that includes five standard studios, 16 large studios, 47 extra-large studios, and 11 one-bedroom units. With an average unit size of approximately 500 square feet, the property blends historic architectural charm with modernized building systems. Marketing materials suggest that many units remain in classic condition, presenting n

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