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.

The SPA, Luxury apartment Barcelona, The Onsider


Price: Free

Relax and let go of your daily routine in our fantastic spa designed for complete disconnection and tranquility in the heart of Barcelona.

Indoor Swimming Pool, The Onsider Luxury apartments Barcelona

Indoor Swimming Pool

Price: Free

Enjoy our indoor swimming pool inspired by the Arab baths and experience it all year-round, opened 24/7 and and always available for the exclusive use of our residents.

The concierge, The Onsider Barcelona


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 Gym, luxury apartments Barcelona


Price: Free

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

Feel at Home


Featured Apartments

Aribau – Apartment 4 Bedrooms

  • Guests: 6
  • Size: 140m²

Paseo de Gracia – The 3 Bedrooms Penthouse

  • Guests: 4
  • Size: 180m²

Mercè – The Patio

  • Guests: 6
  • Size: 200m²

Mercè – Penthouse 3 Bedrooms

  • Guests: 6
  • Size: 230m²

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.

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