Welcome to 423 Quackenbos St NW, a charming detached 3-bedroom, 3.5-bath side-hall Colonial located in the heart of Brightwood/Manor Park. This home offers three levels of fully finished living space, flexibility, and thoughtful upgrades throughout. The main level features a cozy living room with a wood-burning fireplace and an updated kitchen open to the dining area, overlooking the expansive rear yard. The upper level includes three sun-filled bedrooms, including one with an ensuite bath featuring heated floors, plus an additional full hall bath. Originally used as a recreation room, the lower level was renovated to function as a fourth bedroom or primary suite, complete with two walk-in closets, a full bath with heated floors, a finished laundry room with a half bath, and a kitchenette. The layout offers flexibility for guest accommodations, multigenerational living, or potential rental use (buyer to verify zoning and permitted use). The walk-out lower level leads to a flat, fully fenced backyard with a brick patio—ideal for entertaining, relaxing, or flexible outdoor living. A recent improvement includes a newly constructed Amish-built one-car garage located at the rear of the property, offering secure parking, additional storage, and enhanced long-term value. Well suited for young families, the home is located near multiple Washington, DC Pre-K 3 options, as well as a variety of public and charter school choices, offering flexibility as children grow and educational needs evolve. Conveniently located less than one mile from the Takoma Metro (Red Line), this home offers easy access to downtown DC, major commuter routes, neighborhood parks, shops, and dining. A compelling opportunity for owner-occupants seeking space, versatility, and location. Schedule your private showing today.