Nestled on a gentle knoll, this PHIUS+ Certified Passive House built in 2012 is strategically positioned to take full advantage of southern exposure, ensuring the house is bathed in natural light throughout the day through oversized triple glazed European windows. This optimizes solar gain while allowing full view of the surroundings. Additionally, trees offer privacy and a genuine connection to nature. Enter the home into a welcoming sunroom with a wood stove, a space that expands the main living area providing summer breezes and a cozy winter space to enjoy a good book. The main floor is open, expansive, and light filled with various possible configurations for the living and dining area. An efficient kitchen is tucked to the side. Additionally on this floor are a coat closet, bath with shower, and utility room. The second floor holds a comfortably sized bedroom with a large closet, and a second light filled bedroom/office. Both rooms feature generous windows with property views. A hallway laundry with a sliding barn door and a full bath completes the 2nd floor space. Since 2020, improvements include a 16X24 post and beam barn (with an EV Charger), including an attached 8 X 14 insulated lean-to workspace, stairs to a roomy attic area, and an attached 10 X 24 carport. Also included are the addition of the sunroom, a charming studio/cabin in the woods, a supplementary heat pump, new EVP flooring on the main floor, new washer/dryer and refrigerator, and kitchen shelving upgrades. The property is located at the trail head of the Coastal Mountain Land Trust Marsh Meadow Preserve Trail; a .7-mile walk through the preserve. The small coastal city of Belfast is a10.7-mile drive east on Rt 137 accessed by your driveway. Easy access to many towns, local farmers markets, festivals, performances, shopping, a movie theater, multiple dining choices, and so much more awaits your exploration. A truly remarkable energy efficient property in a stunning natural setting.