A ridge above Rafina, and on it a single horizontal line: 190 square metres of glass, stone, and concrete arranged to hold the Aegean in view from almost every room. The house is built around restraint. Sliding panels retract into the walls, dissolving the threshold between the open-plan living floor and the terrace beyond. A rectangular pool sits on axis with the main room, squared against the horizon. Upstairs, three bedrooms and two marble-clad bathrooms share the same sea. A cantilevered concrete staircase rises between floors — each tread floating from the wall, unsupported, deliberate. On the pool level, an independent room with its own WC works as studio, guest suite, or retreat. Energy Class A+. Private parking, curated planting, an outdoor dining terrace. Minutes from Rafina port and the road to the airport — an architect's house, quietly made, that lets the coastline do most of the talking.