Nestled within one of the most beautiful Haussmannian stone buildings on Avenue Foch, this 240 sqm duplex apartment embodies contemporary luxury in Paris. Entirely redesigned by architect Pierre Yovanovitch, it offers a complete renovation combining architectural rigor, refined materials, and perfectly balanced volumes. The entrance opens onto an elegant gallery that immediately sets the tone for the quality of the property. On the main level, a vast light-filled living room enjoys an open view over the majestic trees of Avenue Foch. The reception area extends to an independent dining room, ideal for entertaining, as well as a study that can easily serve as a second lounge or private library. The living room seating, dining room furniture, and the headboards in the suites are signed by Maison Bentley, adding an exclusive design signature and an exceptional level of finish. The night area comprises three true suites. The primary suite, designed as a private apartment within the apartment, features a dressing room and a spacious bathroom. The two additional bedrooms each benefit from their own bathroom or shower room. One suite, fully independent and accessible via the service entrance, offers ideal autonomy for an adult child, guest, or staff. On the lower level, a generous eat-in kitchen conceived as a true living space opens onto a private landscaped garden designed by Camille Muller. Sheltered from view and completely private, this intimate outdoor space extends the interiors in a townhouse spirit in the heart of Paris. The apartment benefits from full acoustic insulation and high-performance quadruple-glazed windows, ensuring optimal comfort throughout the year. Heating is collective (gas), and hot water is individually produced. A subtle balance between Haussmannian heritage, contemporary architecture, and exceptional finishes, this rare property represents a unique opportunity on Avenue Foch. Legal Information Property subject to condominium status – approximately 51 units in the building. Average annual service charges: approximately €12,400. No legal proceedings currently in progress. Annual property tax: €6,000. Energy rating: Class D (237 kWhEP/sqm/year). Greenhouse gas emissions: Class D (47 kg CO₂/sqm/year). Estimated annual energy costs: between €4,670 and €6,390 (based on 2021–2023 indexed prices). Agency fees payable by the seller.