Welcome to a rare find in Sunnyvale's Heritage District offering single-story living on a massive 13,000 sq ft lot. This beautifully updated home delivers the ideal blend of indoor comfort, outdoor space, and unbeatable location just steps from Downtown Sunnyvale, Caltrain, and top-rated schools. Inside, you'll find an open-concept layout with three spacious bedrooms, three full bathrooms, and thoughtful upgrades throughout, including double-pane windows, a remodeled kitchen, a massive driveway, and a new HVAC system. The home is move-in ready with owned solar, an electric car charger, and in-unit laundry. A standout feature is the finished full-height basement, approx. 533 sq ft, not included in official square footage, offering valuable flex space for a home office, media room, or guest suite. Step outside to a professionally landscaped backyard complete with a walk-out deck, automated louvered pergola with built-in lighting, a gas fire pit, and a dedicated kids' play area. With ample room to entertain, garden, or explore ADU potential. Don't miss out on this rare opportunity.