These two duplex apartments, for sale, measuring 131 m2, with a 15 m2 balcony, have double-glazed windows, a fully equipped kitchen and air conditioning, offering the possibility of being fully managed under a renowned brand with a fixed return of 3% for 5 years.The charismatic apartments are sold together in a fully refurbished 18th-century palace. The building offers elegant service apartments for tourists or lifestyle on a quiet street by the Douro River in Vila Nova de Gaia.One of the apartments benefits from a living room with a fully equipped kitchenette, a bedroom on the second floor with a balcony, and a bathroom. The second apartment includes an interior ensuite bedroom, a fully equipped kitchen and two bathrooms.Located on the banks of the River Douro and in the heart of Vila Nova de Gaia's historic centre, this new development offers a unique view over the city. From here you can walk peacefully to the centuries-old Port wine cellars and the Cais de Gaia, as well as to the new cultural quarter where you'll find museums, restaurants, bars, wine schools and a variety of cultural and entertainment activities taking place.Just a few steps from the Fervença Palace is the iconic D. Luís Bridge, with one of the best views in the city. On the other side of the bridge is the Sé do Porto, one of the city's main tourist attractions. From the Cathedral, you can continue to explore other points of interest on foot, such as São Bento Station, the Clérigos Tower, Avenida dos Aliados and Ribeira do Porto.Benefiting from its privileged location and the possibility of guaranteed income, this apartment represents the perfect investment opportunity.