For sale: a luxurious newly built 108 sq.m. maisonette with three bedrooms, located in a modern residential complex of high energy efficiency and contemporary architectural design, with delivery scheduled for April 2027. The property features a functional layout, a spacious open-plan living room and kitchen, two bathrooms, a storage room, two parking spaces, and large balconies, offering comfort and quality of life. Constructed with state-of-the-art materials, it incorporates modern energy-saving systems, including individual heating and cooling with a heat pump, a solar water heater, aluminum window frames with thermal break, pre-installation for an alarm system, thermal insulation, and high-standard energy shielding, ensuring top energy performance of Class A+. An ideal choice for a family seeking a modern, efficient home in a quiet environment. Authorized Listing Agent, CHRISTOS TSOUKALAS / REAL ESTATE AGENT. Registry No. (G.E.MH) : 62173103000. Member of the Athens - Attica Realtors Association. Availability for showing by arrangement.