19 years inspiring, innovating and transforming

Since 2005, they have been promoting dreams and building realities: the exciting adventure of ON-A, a journey of transformation and constant growth. ON-A is an architectural studio formed by a creative and multidisciplinary team, with extensive experience in the sector, and capable of tackling each project in a unique and personalised way.


ON-A materialises into architecture everything they are capable of imagining through technology and innovation, without placing limits on ideas. Each project is a new challenge they face in a unique and singular way. They are defined by an aesthetic, and focused on understanding the client and enhancing their needs. ON-A’s architecture consists of turning what they imagine into reality.

ON-A’s first project, “5 Sentidos Lounge Bar”.
ON-A’s success would not be possible without the talent, dedication, and commitment of their team. They form a community passionate about excellence, where each member contributes their grain of sand to build an even brighter future.
Continuous training and a commitment to innovation are two of the fundamental pillars underpinning ON-A’s success.

Located in the heart of Barcelona, the ON-A space is not just a workplace, but a multidisciplinary space open to creativity, blending past, present, and future.
ON-A’s vision of the future is a commitment to new technologies and R&D, courage and uniqueness in design, solvency and experience, a close relationship, a commitment to the team, a contemporary image and processes, and a sensitivity to the renaturalisation of cities and sustainability.

ON-A space with the model of their latest international project “The Crown”, and, behind it, panels of the project “Green Nest House”, a 100% sustainable house.
“At ON-A, we are not only dedicated to building and designing unique spaces – but also to promoting dreams and turning them into tangible realities. Since our foundation, we have been travelling an exciting path full of challenges that have strengthened us, obstacles that we have overcome with tenacity, and achievements that we have celebrated with pride. Thank you for being part of this story!”– ON-A Team – 

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5 years of ON-A talks

5 years of ON-A talks

As we return from summer holidays, we are celebrating 5 years of ON-A talks. These Friday sessions have been attended by more than 50 professionals from the worlds of architecture, construction, and art. Synergies, inspiration, and creativity flow continuously.
ON-A. InnovatiON-Architecture

ON-A. InnovatiON-Architecture

InnovatiON-Architecture compiles ON-A’s work philosophy: a constant search for innovative ad hoc solutions for each project, using the most updated technologies and design research at the service of ideas, with criteria based on their professional career, but always going beyond the conventional. The book’s contents have been organized to illustrate the four conversations held between (...)


The book reveals the history of ON-A, its philosophy and emotion in architecture, from the beginning of the studio to its global growth, showing its representative projects. It is an opportunity to navigate the most varied experiments, processes and creations of ON-A, interviews and awards. The contents are organized in a collection of chapters, each one introduced by an explanatory text of (...)