One-of-a-kind opportunity to own not one, but two homes on a sunny corner lot in the desirable Best Manor neighborhood-a beloved pocket of San Leandro known for its unbeatable access to everything local. 459 Arroyo Ave, 1,142 sqft main house, blends timeless charm and modern updates with an arched entry, hardwood floors, central heating/ac, recessed lighting, and a decorative fireplace. A spacious living and dining room lead to an updated kitchen with marble countertops, stainless steel appliances, subway tile backsplash, and a large breakfast nook. 2+ bedrooms/ a remodeled bath offer comfort, while a finished lower level adds flexibility—perfect for office, playroom, or creative space. 447 Arroyo Ave, new 2-bed, 1-bath ADU (526sqft) on the same lot, has luxury vinyl floors, dual-pane windows, recessed lighting, full kitchen with quartz countertops &#38' stainless steel appliances, plus a bath with tub/shower combo. Each room has mini-split systems for individual climate control.Enjoy low-maintenance front and backyard spaces, a new fence, and off-street parking via a wide driveway. Separate laundry closet. Ideally located near Downtown San Leandro, BART, library, farmers market, parks, and commuter routes. A perfect fit for multi-gen living, rental income, or live/work flexibility!