*Three Level Townhouse!!*    Located in the Mariners Harbor neighborhood, the handsome residence with its brick and clapboard fa ade offers three bedrooms, 1.5 baths, sunny living areas, a laundry room, an attached garage, and even a backyard space. Plus, the new Richmond Terrace Park is right across the street, with lovely walking paths and sitting areas overlooking the bay.    Sitting on a small private court, the townhouse has an entry level family room with ceramic tile floor, extra closet space, garage entry, a laundry room, and rear access to the yard. Stairs lead from the family room up to the second level where you'll find an open layout, gleaming hardwood floors, and triple windows in both the living and dining rooms. The gourmet kitchen has been nicely remodeled with black granite counters, white cabinetry, a white brick tile backsplash, and upscale stainless steel appliances including a triple-door fridge. A spacious powder room offers extra convenience for all.    Sleeping quarters are at the top, with three large and airy bedrooms, and hardwood floors. Each bedroom has overhead lighting, ample closet space, and windows to invite the sunshine in. The full hallway bath has decorative wall tile, a white stone topped vanity sink, and a combo shower and tub with a handheld attachment. There have been lots of recent upgrades throughout the home, but it's still ready for your own personal touches.     The Mariners Harbor neighborhood on the North Shore enjoys a coastal perch along Arthur Kill and Kill Van Kull. It's a cozy enclave with local coffee shops, delis, and restaurants. Getting into NYC, Brooklyn, and New Jersey is a snap via the nearby Bayonne Bridge, Goethals Bridge, the train and the ferry.