Supplements: stainless steel appliances, natural maple cabinetry, and granite countertops. The estate includes a guest house and a pool house, built circa 1922, adding flexibility and bringing the total living area to 5,090 square feet. Local lore suggests Helen Keller stayed in the guest house during her visits to Tucson, adding a unique historical dimension. ... (Read more) stainless steel appliances, natural maple cabinetry, and granite countertops. The estate includes a guest house and a pool house, built circa 1922, adding flexibility and bringing the total living area to 5,090 square feet. Local lore suggests Helen Keller stayed in the guest house during her visits to Tucson, adding a unique historical dimension. Each bedroom in the main house offers a walk-in closet and en-suite bath, while the primary suite features a large walk-in closet and French doors that open to a covered patio with views of the Santa Catalina Mountains. Set on 1.15 acres, this property offers privacy, mature desert landscaping, and expansive covered patios for enjoying the outdoors. A four-car tandem garage, dedicated carport, and generous storage meet practical needs, while the absence of an HOA and a central location provide both convenience and seclusion. 6510 E Marta Hillgrove is a masterful blend of design, comfort, nature, and history.