Welcome to 4066 Knollbrook Drive, an absolutely gorgeous custom ranch situated on 1.52 acres in Norton! Built in 2010, this beautifully maintained home offers an impressive combination of space, quality and thoughtful design with 4 bedrooms, 3.5 baths & a 4-car attached garage. Step inside to a spacious, open floor plan featuring a huge kitchen designed for both everyday living and entertaining. You'll love the abundance of cabinetry, pantry, granite countertops, & oversized L-shaped island with seating. All appliances stay and were new in 2026! The main level also offers a dedicated home office, generous living and dining spaces and a large 1st laundry room. The private owner's suite is a retreat of its own, featuring 2 walk-in closets and a spacious en-suite bath with double vanity and an oversized walk-in shower complete with multiple showerheads. On the opposite side of the home are two additional bedrooms connected by a convenient Jack-and-Jill bath featuring a jetted tub and separate shower. The lower level takes this home to another level! The finished walkout basement provides an incredible amount of additional living and entertaining space, including a 4th bedroom, media/theater room, addtl room, recreation space and full bath. Entertain at the wet bar, complete w/ beer tap, then step directly outside to the patio with a built-in fire pit and fenced backyard. Enjoy the peaceful 1.52-acre setting from the covered rear patio while still having plenty of space for entertaining, pets and outdoor activities. Addt'l updates include new central air in 2023, fresh paint and new main-floor carpeting in 2026, along with professional landscaping, an extended driveway, hot tub, water softener, newer garage doors and aluminum fencing. Spacious, beautifully maintained and truly designed for entertaining-convenience of ranch living with an incredible finished walkout lower level and room for everyone. This is one you have to see in person!