Welcome to 24271 Seagreen Drive, a hidden gem in a peaceful Diamond Bar neighborhood! Offered for the first time in over a decade, this inviting 3-bedroom home features 1,552 square feet of living space on an expansive 10,784-square-foot lot. Set back from the street for added privacy, the home welcomes you with soaring ceilings in the entry and living room, creating a bright and airy atmosphere. Recent improvements include fresh interior paint, updated lighting, recessed lights, upgraded baseboards, dual-pane windows with upgraded blinds, and tile and wood-look laminate flooring. The updated kitchen features quartz countertops, decorative backsplash, soft-close cabinetry, stainless steel appliances, undermount sink, and vented range hood. The family room offers built-in cabinetry, while the primary suite includes an upgraded closet system and private bathroom with a tub-and-shower combination. Additional highlights include a tankless water heater, water softener, leased solar panels, and a two-car attached garage with direct access, storage, and modified HVAC providing conditioned air to the garage, ideal for projects or workouts. Laundry hookups are available in the garage, with additional interior space for a potential stacked washer & dryer. What truly sets this property apart is the rare, expansive, all flat backyard with elevated neighborhood views! Imagine creating your dream outdoor retreat with a garden, swimming pool, sports court, outdoor kitchen, or entertaining area for unforgettable gatherings. Enjoy peaceful mornings, weekend barbecues, or relaxing evenings overlooking the neighborhood. The backyard features floodlights, vinyl fencing, & block walls. The spacious side yard offers potential RV or boat parking with additional room for storage. The generous lot also presents possibilities for an ADU, JADU, or expansion of the main residence, subject to city approval, offering flexibility for multigenerational living or future customization. Conveniently located near parks, hiking trails, shopping, dining, grocery stores, & access to the 57 & 60 freeways, this home combines suburban tranquility with everyday convenience. Whether you're looking for a comfortable home, an entertainer's paradise, or a property with room to grow, the possibilities are endless! With the owners having relocated out of the area, this is your opportunity to make this wonderful property your own. Don't miss your chance to own this humble sanctuary in Diamond Bar!