Α luxurious two-level Penthouse maisonette (6th & 7th floor) of 167 sq.m., located in Kallithea, in a prime area near the metro, train station, parks, schools, and the seaside. This newly built property, under construction and is designed with cutting-edge materials and technology, ensuring top-tier energy efficiency (Energy Certificate A+). The maisonette consists of four bedrooms (two of which are master), four bathrooms, a spacious living room, and a modern, ergonomically designed kitchen. It includes two parking spaces on the ground level (pilotis) and a large underground storage room of 18 sq.m. Architecturally refined and functionally designed, the residence is corner, front-facing, airy, and sunny, with an eastern orientation and open city views. It features 12 cm external thermal insulation, high-performance aluminum frames with thermal breaks, and double energy-efficient glazing, providing excellent soundproofing and energy savings. Heating is autonomous via a heat pump, while a solar water heater, boiler, and energy fireplace further enhance comfort and efficiency. On the exclusive rooftop terrace, state-of-the-art photovoltaic panels provide up to 90% energy autonomy, making the maisonette nearly self-sufficient and environmentally friendly. Additional features include: elevator, sewage connection, electric car charger, fiber optics, alarm system, video intercom, security door, electric shutters, insect screens, night and three-phase electricity, and complete sound and thermal insulation. This luxurious residence is freshly painted and ideal for families, students, professionals, or investors seeking long-term or short-term rental opportunities. Located in a peaceful and rapidly developing neighborhood, close to parks, schools, markets, supermarkets, public transport, and the sea, it offers the perfect balance between tranquility and modern urban living. For immediate and personalized assistance, contact Axon Real Estate today at 2109229058 or at info@axon.com.gr. Our experienced team responds quickly and efficiently, offering solutions tailored to your needs and guiding you through every step of your search until you find your ideal home. A dedicated agent is always available for an immediate appointment and responsible updates, ensuring you enjoy a truly superior real estate buying experience. Axon Real Estate, contact phone: 2109229058, email: info@axon.com.gr, website: www.axonrealestate.gr