Custom-Built Colonial with Legal In-Law in South Nashua. Designed for multi-generational living, this custom-built home offers 4,500+ SF of space, including a legal attached in-law apartment, on a private tree-lined lot in one of Nashua's most desirable cul-de-sac neighborhoods. Just minutes from Sky Meadow Country Club, Bicentennial School, and Route 3, this home blends space, flexibility, and convenience. Park in the attached three-car garage and step inside to a soaring foyer, hardwood floors, and natural light throughout. The upgraded kitchen features a bar-top island and farmer's sink and opens to the casual dining area and living room, where double French doors lead to the oversized back deck. The family room is designed for entertaining with a floor-to-ceiling stone gas fireplace and wet bar, while the formal dining room is perfect for hosting holidays. A private first-floor office and half bath complete the main level. Upstairs, the expansive primary suite offers a gas fireplace, walk-in closet, private balcony, separate sitting room, and spacious bath with triple vanity, jetted tub, and shower. A second bedroom with its own full bath creates an ideal guest suite. Two additional bedrooms, an updated full bath, and laundry room complete the second floor. The walk-up third floor provides a fifth bedroom or versatile bonus room. The legal attached in-law apartment provides comfortable single-level living with its own private entrance, updated kitchen with granite countertops and island seating, cathedral-ceiling living room, laundry, bedroom suite with walk-in shower, and additional updated half bath. Outside, enjoy a level backyard with a half basketball court, fenced-in area ideal for kids and pets, oversized deck with gazebo, and a picturesque front porch. With a legal in-law apartment, thoughtful custom design, central AC, and a premier South Nashua location, this home offers a rare combination of flexibility, privacy, and convenience. Open House Sat 11-1.