A rare Arlington home with a West Coast feel and a lifestyle you do not usually find in Massachusetts. Set above the street with elevated, treehouse-like living spaces, the second-floor main level is made for gathering, with an open living/dining area, wood-burning fireplace, renovated kitchen, and seamless access to an expansive deck for dinner parties, morning coffee, and summer nights outside. Upstairs, the loft serves as a private primary suite tucked away from the rest of the home. The lower level offers a true in-law/ADU-style setup with flexible living space, kitchenette, bath, mudroom, privacy for guests or extended family, plus a bonus room previously soundproofed for use as a music room. Outside, the terraced garden space, a large entertaining deck, and a space with hookups for a hot tub create a retreat-like setting minutes from everything Arlington offers. For buyers craving character, privacy, and something different, this is the one.