For sale: a luxurious 35 sq.m. apartment, currently under construction, located in the center of Athens, in a quiet spot near Mavili Square, the Hippocrateio Hospital, and the Megaro Mousikis metro station (100 m). The property is situated on the 5th floor and consists of a living room with an open-plan kitchen, a separate bedroom, a modern bathroom, and a spacious veranda offering comfort and natural light. The building features a minimal architectural design of high aesthetics and is constructed with top-tier energy specifications, including triple energy-efficient thermal-break window frames, independent heating for each apartment via heat pump, a rooftop photovoltaic system with battery storage, and a new-generation energy-efficient building envelope. The apartment is a modern and flexible option that can be used either as a permanent residence or for professional purposes, suitable for a medical practice, office, or student housing, offering high demand and immediate investment potential in one of the city’s most privileged locations.