St. John’s Duplex 6834 N Seneca St, Portland, OR is a rental apartment building with 1 floorplan available. It is located in the St. Johns neighborhood of Portland. It has apartment amenities including walk-in closets, fireplace, microwave, dishwasher, and in-unit laundry. It has building amenities including outdoor space. Cats and dogs are allowed, making it a pet-friendly building.