About us


We are a construction company that is a pioneer in innovation and sustainability founded in Pamplona in 1973. Since then we have been working in a constant process of transformation to be at the forefront of the industry.

Our decades of experience, vocation for excellence and philosophy of continuous improvement drive our purpose: leading the transformation of construction into an industry.

We believe that the future needs an industry that is becoming increasingly responsible, innovative and sustainable.

In order to achieve this, we start with an approach based on radical collaboration, with a strategic and crosscutting orientation that reaches all levels of our activity.

And what makes this possible is people, our backbone. Both those who are part of our team and those who are part of our network of collaborators and, of course, our clients.

That is why we build and nurture our relationships based on five core values: collaboration, commitment, honesty, innovation and sustainability.

Radical collaboration





Radical collaboration

Collaboration at its highest level governs our work philosophy, allowing us to build relationships based on transparency, trust and mutual benefit.


Our commitment to people and the environment around us is manifested in responsible know-how, which gives integrity to our projects and our relationships.


We are inspired by a philosophy of continuous improvement that drives us to push boundaries and challenge ourselves. We do not see any progress as being sufficient.


We start with permanent communication and the application of good corporate governance and compliance systems, ensuring compliance with our code of ethics and the expectations of our stakeholders.


We approach each of our projects from a sustainable point of view in economic, social and environmental terms, ensuring their viability and a positive impact on the environment and society as a whole.

We build thinking about everything. About everyone.

This manifesto outlines the most important aspects of our company purpose.
It follows the same lines as we work: with transparency, honesty and commitment.

It is much more than a list: it is the spirit of ACR.


We want to lead the transformation of construction into an industry. We believe that a more sustainable, responsible and innovative construction is possible and within our reach.


Innovation can and must revolutionise construction. It is more than just a driving force for us. It is at the core of everything we do, it is part of our DNA.


Continuous improvement is essential. For this reason, we use work models that reduce superfluous expenses to a minimum and maximise the results of each project. 


From the very beginning we have been in a constant process of transformation and in search of excellence. This gives us the experience and solvency to successfully meet any challenge we face.


People and mutual benefit are our raison d’être. For this reason, we work on the basis of radical collaboration: we listen to our employees, partners and customers and turn their voice into a strategic compass.


We believe that the best relationships are honest and two-way. Only with transparency and empathy can we create working and collaborative environments in which we all contribute in the best possible way.


Sustainability is a maxim that we apply comprehensively in environmental, social and economic terms. Because we build thinking about everything. About everyone.


The latest technologies allow us to make better use of our resources. But they are not a goal in themselves: we use them because, honestly, they change how we do things. Always for the better.


The shared involvement of our professionals, collaborators and clients is one of the keys to our success. We want our relationship to go beyond contractual commitments. It is based on rigor, trust and honesty.


Our foundations are based on human talent. People are our core and our greatest asset. Their development and well-being are also ours.


We believe in knowledge. It is what makes us who we are. Sharing information, experiences and best practices in a constant and transparent manner is the basis of all our relationships

In figures


In sales


Ongoing projects


Portfolio value




Homes under construction





ACR team

The Management Committee is made up of professionals with extensive experience in the construction sector and a transformational leadership model.

Michel Elizalde
Chief Executive Officer

More than 20 years of experience in construction, logistics and telecommunications. 





First steps

In 1973, Javier Osés founded Construcciones ACR in Pamplona, the precursor of what is ACR today, which he still presides.

Only three years later, we took on our most ambitious project until then: the construction of our first residential building, a building with 54 flats.

As a result of the commitment and professionalism demonstrated by the team in this project, new challenges arrived. In a short time we became a benchmark in residential construction in Pamplona.