Nestled at the end of a tranquil cul-de-sac in the highly desirable Harbor Hills community, this stunning Davidsonville home blends modern design with a Frank Lloyd Wright-inspired aesthetic. Surrounded by lush trees and nature, the home's floor-to-ceiling windows, skylights, and multiple sliding doors seamlessly bring the outdoors in, filling the space with natural light and offering serene views. A brick walkway and extensive landscaping welcome you to the large covered front porch. Inside, you'll find wood floors throughout and an expansive Great Room that features a breathtaking cathedral ceiling with exposed wood beams, six sliding doors leading to the deck and garden, and a perfect entertaining area complete with a wet bar, beverage fridge, and wine rack. The beautifully renovated Chef's kitchen boasts a cozy breakfast nook with skylights, and walls of windows, making it an ideal spot to enjoy the surrounding scenery. The appliances, cabinetry, and appliances meld perfectly together, and the large island offers bar seating. The spacious living and dining rooms provide additional space for gathering, while the family room offers a brick surround wood-burning fireplace flanked by built-ins, and access to a large porch that leads to the tiered deck. Upstairs, the luxurious primary suite is a true retreat, with access to a private sundeck, two walk-in closets (one cedar), and a newly renovated ensuite bath with walls of windows overlooking wooded views, a freestanding tub, an oversized glass-enclosed shower, and a double vanity. An attached laundry room offers closet space, shelving, and a new front-loading washer & dryer for added convenience. Three additional bedrooms and a full bath complete the upper level. Relax in style in the comfortable lower level, which features a cozy additional living space/recreation room, an ensuite 5th bedroom, a dual-entry bath, and a versatile flex space/playroom. There is also an ample storage/workshop room on this level. This home also features a detached two-car garage, a spacious driveway with a basketball hoop area, a newer roof and windows, and seasonal water views. 686 Merrimac offers the perfect combination of nature, privacy, and modern luxury.