The Onsider | Luxury Apartments Barcelona

The Onsider Barcelona Passeig de Gracia 3 bedroom luxury apartment
The Onsider Barcelona. Aribau Loft Apartment 2 bedrooms
The Onsider Barcelona. The Patio Apartment. Passeig de Gracia Apartment 3 bedrooms
The Onsider Barcelona Swimming pool
The Onsider Barcelona Penthouse. Passeig de Gracia Apartment 3 bedrooms
From one month stay

Luxury apartments

Luxury Apartments in Barcelona


You can find us at three Premium locations in Barcelona, all our unique luxury apartments are completely renovated with a stunning design concieved by the recognized Ricardo Bofill, Lázaro Rosa Violán and Jaime Beriestain. Our 31 apartments have been designed to offer you all you need for a world style living. Our apartments range from 1 to 5 bedrooms and they all offer an exclusive lifestyle in Barcelona. All our buildings include a swimming pool, gym, storage room, concierge service and all kind of facilities to make your stay unforgettable.


To make your stay as comfortable as possible, The Onsider’s dedicated guest relations agent will be able to assist you with your daily needs and help you to experience Barcelona like a local.

While we deeply believe in conveying to you the genuine lifestyle of Barcelona, we will always adapt to your individual way of living and fulfil your most demanding requests.


Price: Free

If you want to enjoy the full range of The Onsider services or simply indulge yourself, our dedicated concierge is there for you during the day.

The Onsider Barcelona Gym


Price: Free

Our residents can stay fit and healthy with our Gym which is equipped with the latest Technogym™ training equipment.

The Onsider Barcelona Swimming pool

Outdoor swimming pool

Price: Free

With 15-metre of surface and 90 of depth, you can refresh from a warm Barcelona summer in The Onsider panoramic pool with whirl pool and jet stream water.

Feel at Home


High-quality Property

Every property we have to propose you corresponds to the all high standards of comfort and pleasant rest.

Book with Confidence

Be sure that your booking is confirmed by us, as we are using extremely smart booking management system.

Trust & Safety

Hundreds of satisfied visitors have stated their extremely pleasant impressions and you can check it yourself!


In our news section you can find all the latest trends, news and useful information for your new life in Barcelona.


Nothing is more important to ASAP and its Accredited members than the safety, security and care of guests staying in their properties and apartments. To that end, the ASAP Stay with Confidence Promise sets out the very minimum standards that each member has to adhere to as part of being a professional, caring, accredited member of the organisation.