OPEN HOUSE 11/1 from 11am-1pm! Welcome to 1419 Mariner Dr. This 4-bedroom, 2.5-bath single-family home is in the desirable Landhaven community of Arnold, MD and ready for it's new owner. Lovingly owned by the same family since 1978, this well-maintained residence offers generous living spaces, a fantastic layout, and the opportunity to add your personal touch. The main level welcomes you with large living and dining room areas filled with natural light – perfect for gatherings and everyday living. The roomy eat-in kitchen provides plenty of space for meal prep and casual dining. Step out to the delightful screened-in porch overlooking your private, fenced backyard – an ideal spot to unwind and enjoy the outdoors. Three bedrooms complete this level, including a primary suite with its own bathroom, plus two additional bedrooms sharing a hall bath. The lower level expands your living options with a fourth bedroom, half bath, laundry room, and office space. Another living area with direct backyard access provides flexibility for a teen suite, in-law quarters, home gym, or workshop – ready for your vision. Set on a lovely corner lot with a fully fenced yard, this property is perfect for outdoor enjoyment. Practical features include a one-car garage with extra storage and driveway parking. AC Unit (2018), whole-house generator (2021), and new gutters (2025). Enjoy easy access to the Chesapeake Bay, local marinas, shopping, dining, and major commuter routes in one of Anne Arundel County's most sought-after waterfront communities. A rare opportunity to personalize a well-cared-for home with great bones in beloved Landhaven!