4 ½ rooms attic flat

First occupancy 2026 – Exclusive 4.5-room penthouse with panoramic lake view in Altendorf SZ At a privileged location on Lake Obersee, this exceptional 4.5-room penthouse on two floors awaits you. With approximately 150 m² of net 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. Generous window fronts, bright 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 on two floors * Approx. 150 m² net living space / approx. 307 m² usable area * 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 * Large-format floor tiles and discreet recessed spotlights * Energy-efficient ground-source heat pump * Comfortable underfloor heating * Two underground parking spaces available * Sunny and excellently connected location * Altendorf train station within walking distance * A3 motorway access 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.