Spain's A&G Private Banking has acquired Hotel Único Madrid from owner-operator Único Hotels.
Financial details were not disclosed.
Following the transaction, Único Hotels will continue to operate the hotel under a 20-year lease that includes several buyback options for the operator.
The 5-star luxury boutique hotel comprises 44 rooms, a library, wellness suite and a range of F&B facilities, including the two Michelin star-rated restaurant Ramón Freixa.
According to broker CBRE, which advised Único Hotels, the hotel is well positioned in the heart of the Golden Mile of the Salamanca district, surrounded by fine-dining restaurants and designer boutiques.
Jorge Ruiz, head of CBRE Hotels, Iberia said: 'This transaction highlights the continued interest from investors in the Spanish hotel market despite the pandemic.
'Hotel Único Madrid has strong fundamentals and offered a rare opportunity to purchase such a well-placed asset.
'Sale-and-leaseback deals provide an excellent alternative to enable operators to navigate through the Covid crisis whilst retaining the operations of strong performing assets.'