Fantastic Single Family alternative. This 2200 sf, one-of-a-kind, beautiful, 4 bedroom 4 bath perched on tree-lined Prospect St. is truly a rare offering. The savvy current owner combined two units to create a sprawling duplex penthouse perfect for a large or extended family. The main living level features sun-filled open concept living with high ceilings, gas fireplace, wood floors and bay window with dramatic views. A gracious dining area is off the pristine white kitchen w/ gas range, stainless appliances, granite countertops and breakfast bar with seating for 4. A sweeping staircase takes you up to the top floor with an additional kitchen (ideal for entertaining) an open family room with gas fireplace, and French Doors to a Home Office. Two primary bedrooms, one on each level, with large custom closets, en suite marble baths and washer/dryers in each. Two additional bedrooms and well appointed full baths. Enormous exclusive roof deck w/ Dazzling City and Harbor Views. OH Thurs 5-7