Rare multi-family investment opportunity at 916 Queenston Road, Cambridge, featuring a distinctive 1920s Arts & Crafts mansion together with a detached rear duplex on a prominent approximately 0.4-acre inner-city corner lot. The property offers six residential units in total, combining strong existing rental income with exceptional character and future upside. The approximately 4,800 sq. ft. main residence showcases cut-sandstone veneer over solid brick construction and retains impressive original craftsmanship, including gum wood baseboards and doors, clear pine woodwork, and two main-floor fireplaces.The vacant master wing offers approximately 1,600 sq. ft. of expansive living space and has been carefully preserved, making it ideal for an owner-occupier, executive rental, or premium repositioning opportunity. The balance of the property includes additional income-producing units in the main house along with two one-bedroom units in the detached rear duplex. A partially finished walk-out basement with approximately 8-ft ceilings provides additional flexibility. The lower/basement-level unit is conveniently located next to the laundry room and also features a rough-in for an additional full washroom. Set on a substantial corner parcel with roughly one-third of the lot remaining open, the property may also offer future infill or accessory development potential, subject to municipal approvals. A compelling opportunity for investors seeking a unique combination of architectural character, diversified rental income, vacant-unit upside, and long-term redevelopment potential in Cambridge.