3740 Larkview Court is the kind of Northern Calvert property that does not come along often. Set on a private 1.5-acre flag lot in Lyons Creek Overlook, this estate-style home offers over 10,000 finished square feet between the 6-bedroom main residence and separate 2-bedroom guest house, with the added confidence of a recent appraisal supporting the list price. The setting is quiet and tucked away, with wooded surroundings, a paver circular driveway, lawn irrigation, site lighting, and plenty of room to spread out. The main home opens with a beautiful two-story foyer, with the formal living room to the right and formal dining room to the left. Toward the back of the home, the kitchen becomes the center point of the main level, featuring upgraded cabinetry, stainless steel appliances, a Wolf stove, luxury lighting, and a separate coffee/wet bar area. Hardwood floors, ceramic tile, upgraded carpet, and custom molding throughout give the home a finished, comfortable feel. The family room overlooks the wooded rear setting and includes a surround sound TV package, making it a great space for movie nights or relaxing at home. On the north side of the home, the main-level sunroom is a perfect spot to open the windows on a summer evening, and the composite deck overlooks the yard and trees. The main level also includes an office with a closet and nearby full bath, creating a possible first-floor bedroom setup if needed, along with the first laundry area and access to the first two-car garage. Upstairs, the bedroom layout is spacious and practical. One secondary bedroom has its own private full bath, while two others share a buddy bath. There is also a second laundry closet on this level for added convenience. The owners suite has the space and privacy expected in a home of this size, with a sitting room, double-sided fireplace, peaceful wooded views, and a royal bath with customized tile and glasswork, two separate vanities, and high-end finishes. The owners closet is a major feature, offering a large, well-organized space for clothing, storage, dressing, and getting ready comfortably. The third floor adds even more usable space, with a large loft recreation area, an additional bedroom, and a full bath. This level could work well as a playroom, large office, guest area, or private suite. The lower level continues the theme, with a large rec room, workout area or possible additional bedroom/flex space, walk-out French doors, a large storage area, and access to the second two-car garage. Two separate two-car garages are a rare and very useful feature, especially for a property of this size. Connected by a breezeway off the side door near the kitchen, the separate guest house adds a level of versatility that is hard to find. With just under 2,000 square feet above grade, its own good-sized family room, kitchen with granite countertops, breakfast nook/table space, large first-floor bedroom with full bath, second large bedroom upstairs with excellent closet space and full bath, plus a large basement for storage, it can serve a number of needs. The guest house also has separate meters, separate phone and internet lines, and its own 500-gallon propane tank, while the main house has a 1,000-gallon propane tank. Because of the separate utilities, this creates strong potential for rental or income-producing use, while still working well for long-term guests, multi-generational living, separate living quarters, private workspace, or extended household needs. Important updates include a new roof and skylights installed in August 2025, with CertainTeed Landmark architectural shingles in Colonial Slate, plus generators and electrical work completed in November 2025. Each house has its own generator. The HVAC includes a two-zone heat pump system with backup emergency heat and propane hot water. With its size, setting, guest house, this is a standout opportunity in Northern Calvert.