4.5-Room Penthouse with Lake View in Altendorf

First occupancy 2026 – Exclusive 4.5-room penthouse with panoramic lake view in Altendorf SZ In a privileged location on Lake Obersee, this exceptional 4.5-room penthouse awaits you. With approximately 150 m² of living space and an impressive usable area of around 307 m², this attic apartment combines modern design, high-quality materials, and a spectacular view of Lake Zurich and the surrounding mountains. Spacious window fronts, light-flooded rooms, and a timeless interior design create an exclusive living ambiance that meets the highest standards. Highlights First occupancy from August 16, 2026 Exclusive penthouse / attic apartment Approx. 150 m² living space / approx. 307 m² usable space Dreamlike panoramic lake view to the Alps Spacious living and dining area with fireplace Modern design kitchen with cooking island and breakfast bar High-quality kitchen appliances and noble interior design Two stylish bathrooms Whirlpool as an exclusive wellness highlight Pergola with all-around lockable sides Large-format floor tiles and discreet recessed spots Energy-efficient ground probe heat pump Comfortable underfloor heating and cooling system Garage parking spaces available Sunny and excellently connected location Altendorf train station within walking distance A3 motorway connection Pfäffikon SZ in immediate proximity This exclusive attic apartment combines modern living comfort, an unparalleled view, and the highest construction quality to create a unique home on Lake Zurich. Swiss Twins Immobilien | Real Estate Management accompanies you personally and competently – from the first viewing to the handover of the keys. Arrange your personal viewing appointment today and discover this exceptional residential property.