The Onsider Barcelona serviced apartments are a new stylish and luxury residences concept located in the trendiest neighbourhoods of Barcelona. In a world where mobility has become a way of living, and connection a way of being, The Onsider is a building that has been created to fill a gap between the traditional hospitality industry and the expanding demand on Extended-Stay Luxury Serviced Residences.


Our Vision

To be the home-away-from-home and exclusive living solution for those who move around the world.

the onsider luxury apartments barcelona

Our Mission

To provide residents with luxurious home-away living solutions & experiences while delivering excellence, comfort and discretion along their stay.

The Onsider Barcelona
Contemporary and cosy, these unique apartments feature a range of comfortable and luxurious modern suites, as well as an outstanding and dedicated guest relations service. Endowed by the interior designer Jaime Beriestain, The Onsider Barcelona recreates Barcelona’s cosmopolitan lifestyle in a sophisticated and elegant way, in which commitment to the environment is a must.


At The Onsider we love Barcelona, for that reason we are working on a new building “The Onsider La Mercè”. A very characteristic building of the sea front where a huge refurbishment work is being carried out to be able to achieve our quality standards and services.

To be able to meet those expectations we are working together with Ricardo Bofill Taller de Arquitectura, one of the most prestigious international study in the field of architecture, urban planning and design.

© Silvia T. Colmenero

Ricardo Bofill

W Bcn

W Hotel Barcelona
2009 – Ricardo Bofill

Aeroport BCN T1

Barcelona Airport T1
2010 – Ricardo Bofill