Welcome to 5120 Mainstream Circle, lovingly cared for and ready for it's next owner! This beautifully cared for, this 4-bedroom home offers the perfect blend of everyday functionality and flexible living spaces. Rich hardwood floors flow throughout the main level, where you'll find a welcoming family room, formal dining room, and a versatile front living room that also makes an ideal home office. The bright eat-in kitchen opens directly to a charming screened porch, creating the perfect spot to enjoy your morning coffee while overlooking the deep, manicured, flat backyard. An additional patio extends your outdoor living space, making entertaining and relaxing effortless. Upstairs, the oversized primary suite provides a peaceful retreat with a generous walk-in closet, private en-suite bath, and an adjoining bonus room that is perfect for a home office, nursery, fitness space, or can easily be converted into an additional walk-in closet. Three additional bedrooms complete the second level. The finished daylight basement adds incredible flexibility with luxury vinyl plank flooring, a convenient half bath, and two separate finished rooms ready to become your media room, game room, home gym, hobby space, or whatever best suits your lifestyle. An unfinished workshop with a utility sink, abundant storage, and direct backyard access offers exceptional functionality for projects and organization. Thoughtful updates include double-pane insulated windows and a newer water heater, providing added comfort and energy efficiency. Ideally located near highly regarded schools, parks, shopping, dining, and major commuter routes, this home combines a peaceful setting with everyday convenience. With no HOA, a rare oversized private lot, multiple indoor and outdoor living spaces, and room to customize for years to come, 5120 Mainstream Circle offers an exceptional opportunity in Peachtree Corners.