This rare and exceptional lateral apartment is situated on one of London's most prestigious garden squares, Eaton Square, in the heart of Belgravia. Spanning approximately 2,500 square feet, the 3-bedroom, 3-bathroom duplex flat boasts grand proportions, high ceilings, and elegant period features throughout. The property features two reception rooms, large sash windows, and a balcony, with lift access, 24-hour porterage, and access to the beautifully maintained private gardens of Eaton Square. With approximately 51 years remaining on the lease, this property offers significant potential for value uplift through a lease extension, making it a compelling opportunity for cash buyers, lease-extension specialists, or family offices seeking a blue-chip London investment.