680 42nd St is the kind of property that rarely comes along--beautifully updated 2423 sqft duplex that lives effortlessly like a single-family home w/ a true in-law/adu. With 3BD/2BA upstairs, plus 2BD/1BA down, the layout has the perfect balance of togetherness & separation, idealfor multi-generational living, long-term guests, work-from-home flexibility,or income potential. Behind its clean, timeless exterior, the upper residence feels bright, calm, & thoughtfully curated. Sunlight fills spacious living/dining areas where warm wood floors & crisp white walls create a gallery-like backdrop for everyday life. The kitchen is polished with classic white cabinetry, stainless appliances including a chef-grade gas range, designer fixtures, generous counter space,& a breakfast nook. Upper bedrms--includes stylish primary suite--offers comfort & privacy, complemented by updated bathrooms. Downstairs 2BD/1BA is perfect as guest quarters, creative studio, office haven,or full 2nd unit. Attached garage offers interior access to the upper unit, tons of storage/utility space, laundry rm,& bonus space for workshop or office. Sunny spacious backyard completes the home w/ room to dine, play, & unwind. Plus, incredible avocado tree! Located in North Oak/Longfellow, just moments to Temescal/BART/580