Rarely available: a 100% detached, 4-bedroom, 4-bathroom single-family home on a generous 3,371 sq ft lot in the heart of Sunnyside, one of San Francisco's most consistent seller's markets. The main level lives as a 2-bedroom, 2-bath home (per Assessor's records), with two additional bedrooms and bathrooms across two lower-level units (buyer and buyer's agent to verify square footage and permitted use with the City). The main level is anchored by a striking bay-window room filling the space with soft, even natural light, warm hardwood floors, and an ornate carved fireplace mantle.The room offers flexible use as a formal living/dining space or an additional bedroom - currently configured as a fifth bedroom with its own private door and walls. The primary en-suite bedroom is sun-splashed and overlooks a peaceful backyard. Out back, mature bushes, an apple tree, and a lemon tree frame a sun-drenched, south-facing yard, perfect for lounging or al fresco dining. Both upstairs bathrooms have been beautifully renovated with sleek floating vanities in warm wood tones, white quartz countertops, modern fixtures, and a tiled shower wrapped in marble-look tile with a hexagon mosaic floor. One bath adds crystal sconce lighting for a soft, boutique-hotel feel. Downstairs, two separate units offer real flexibility: live in the main level and use the lower-level units to help offset your mortgage, house extended family, or simply enjoy the extra space. The real prize is the lot itself: wide, usable, and detached on all sides, with genuine room for an ADU or a major addition, increasingly rare this close to the city center. It sits on a good, quiet street half a block to Sunnyside Elementary, minutes to Glen Park BART, Balboa Park BART, Monterey Blvd shops and restaurants, West Portal, City College of San Francisco, and the trails of Mount Davidson, with easy freeway access. Delivered 100% vacant. Move fast, this one won't last. Seller, listing broker and agents do not represent or guarantee the accuracy of the square footage, number of bedrooms & bathrooms, lot size, or any other information herein. Buyer and buyer's agent to independently verify all information through personal inspection and with appropriate professionals.