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With over 20 years of experience, we are an architecture studio specialising in residential projects that blend design, technology and innovation.

We work closely with developers, delivering innovative solutions
that combine functionality, sustainability
and refined aesthetics.

We work closely with developers, delivering innovative solutions that combine functionality, sustainability and refined aesthetics.

OUR CLIENTS

OUR CLIENTS

“

As a developer, I want to highlight the outstanding professionalism, innovation, and meticulous methodology demonstrated by ON-A on the Londres building of the AQ Urban Fira development. Their forward-thinking vision and ability to transform ideas into high-quality designs have exceeded our expectations, consistently meeting deadlines and requirements at every stage. A reliable, creative, and committed team that delivers comprehensive value throughout the project.

Albert Fontbona, AQ ACENTOR

“

I value ON-A’s professionalism and their ability to understand our needs and translate them into high-quality designs. They adhere rigorously to deadlines, and their deliverables consistently meet our quality standards. They add value at every stage of the project, becoming a trusted strategic partner.

Miguel Cabrillo, INMOGLACIAR

“

ON-A represents a new generation of architecture studios that are setting a benchmark in the sector. They stand out for the creativity of their designs—particularly façades—the technological innovation applied to projects and construction, the professionalisation of processes and studio management, and a genuine commitment to sustainability. They demonstrate that creativity and industrialisation can go hand in hand.

Emma Bellosta, NEINOR HOMES

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“

“What stands out about ON-A is their technical expertise, innovative vision, and commitment to sustainability… but that is evident from their track record. Our personal experience went further: we discovered a team that is approachable, accessible and human. People who answer the phone, return calls, and with whom it is always possible to have an honest conversation. In today’s world, that is a quality that is rare… and even harder to measure.

Xavier Simón, LEVEL

“

At Sorigué, we greatly value ON-A’s contribution to the development of the residential buildings in Rengle, Mataró. Their contemporary, thoughtful, and functional architecture has given the project a distinct identity, providing key added value both architecturally and commercially. They have successfully translated our needs into a design that enhances quality and differentiates the property, supporting its positioning in the market.

Juan Andrés Medina, SORIGUÉ

“

As a developer, I would like to highlight the exceptional professionalism, innovation, and meticulous methodology demonstrated by ON-A on the Londres building of the AQ Urban Fira development. Their forward-thinking vision and ability to translate ideas into high-quality designs have exceeded our expectations, consistently meeting deadlines and requirements at every stage. A reliable, creative, and committed team that delivers comprehensive value throughout the project.

Albert Fontbona, AQ ACENTOR

“

As a developer, I would like to emphasise ON-A’s outstanding professionalism, innovation, and meticulous methodology on the Londres building of the AQ Urban Fira development. Their forward-looking vision and ability to translate ideas into high-quality designs have exceeded our expectations, consistently meeting deadlines and requirements at every stage. A reliable, creative, and committed team that delivers comprehensive value throughout the project.

Albert Fontbona, AQ ACENTOR

“

I value ON-A’s professionalism and their ability to understand our needs and translate them into high-quality designs. They adhere rigorously to deadlines, and their deliverables consistently meet our quality standards. They add value at every stage of the project, becoming a trusted strategic partner.

Miguel Cabrillo, INMOGLACIAR

“

ON-A represents a new generation of architecture studios that are setting a benchmark in the sector. They stand out for the creativity of their designs—particularly façades—the technological innovation applied to projects and construction, the professionalisation of processes and studio management, and a genuine commitment to sustainability. They demonstrate that creativity and industrialisation can go hand in hand.

Emma Bellosta, NEINOR HOMES

“

“What stands out about ON-A is their technical expertise, innovative vision, and commitment to sustainability… but that is evident from their track record. Our personal experience went further: we discovered a team that is approachable, accessible and human. People who answer the phone, return calls, and with whom it is always possible to have an honest conversation. In today’s world, that is a quality that is rare… and even harder to measure.

Xavier Simón, LEVEL

“

At Sorigué, we greatly value ON-A’s contribution to the development of the residential buildings in Rengle, Mataró. Their contemporary, thoughtful, and functional architecture has given the project a distinct identity, providing key added value both architecturally and commercially. They have successfully translated our needs into a design that enhances quality and differentiates the property, supporting its positioning in the market.

Juan Andrés Medina, SORIGUÉ

ON-A Approach

Torre el Rengle, Mataró

Our approach is based
on intelligent architecture
that prioritises the design of
efficient projects, tailored
to clients’ needs, and
developed with a sustainable
vision at every stage
of the process.

ON-A Approach

Continuous innovation
and process improvement are the driving forces behind our work. These pillars enable us to achieve higher levels of efficiency, precision, and alignment with the sector’s most demanding standards.

Torre Zenit, Escaldes-Engordany, Andorra

Continuous innovation and process improvement are the driving forces behind our work. These pillars enable us to achieve higher levels of efficiency, precision, and alignment with the sector’s most demanding standards.

Torre Zenit, Escaldes-Engordany, Andorra

Sustainability is a core principle of our studio. We recognise that the buildings we design and construct today will have a lasting impact, which is why we take seriously the responsibility to protect the environment and preserve resources for future generations.

Edificio Urban Fira, Barcelona

Sustainability

“

We would like to highlight ON-A’s outstanding professionalism, innovation, and meticulous methodology applied to the Londres building of the AQ Urban Fira development.

Their forward-looking vision and ability to translate ideas into high-quality designs have exceeded our expectations, consistently meeting deadlines and requirements at every stage.

A reliable, creative, and committed team that delivers comprehensive value throughout the project.

Albert Fontbona, AQ ACENTOR

 

Technology Applied
to Design and Processes

We are at the forefront of digitalisation and the application of technology to building design and project management. All our projects are developed using state-of-the-art BIM technology and cloud-based management systems, enabling full connectivity and collaboration with both suppliers and clients.

Our efficiency is founded on continuous improvement: we apply Lean methodology to optimise design, plan with precision, and ensure both deadlines and quality are met.

“

ON-A adds value at every stage of a project, becoming a trusted strategic partner.

Miguel Cabrillo, INMOGLACIAR

Residencial Can Marques, Llinars del Valles

Our Services

Architecture
Projects

We develop architectural projects from the initial concept through to the executive design stage, covering all phases of the design process with a comprehensive approach and adapting to the client’s needs.

Project Management
and Site Supervision

Our extensive experience over the years supports us in the management and supervision of projects, ensuring results that meet the highest standards of quality, efficiency, and commitment in every project.

Living
by ON-A

As a result of the knowledge gained throughout our experience in the real estate sector, we have developed a line of sustainable, healthy, efficient, and industrialised homes, designed to meet the current and future needs of modern living.

Sant Just Homes III, Barcelona

We work from a comprehensive perspective, from project conceptualisation through to execution, ensuring the highest quality at every stage.

“

ON-A represents a new generation of architecture studios that are setting a benchmark in the sector.

Emma Bellosta, NEINOR HOMES

Architectural
Projects

We deliver innovative architectural projects for developers, investors and property owners, combining distinctive design with high sustainability standards to enhance the commercial value of their assets.


Tight
deadlines

Thanks to the integration of BIM and LEAN methodologies, we are able to define project timelines with precision and efficiency.


Costs under
control

With our methodology, we control costs, optimise resources, anticipate deviations, and ensure alignment with objectives and budget.


Quality
assured

With rigorous site management, we control the building’s quality and ensure a result that meets expectations and complies with regulations.

Construction Management
and Supervision

We manage and oversee every construction project with a holistic vision, minimising risks, cost overruns, and delays thanks to our technical expertise and a well-established working method.

Torre el Rengle II, Mataró

“

We highly value ON-A’s contribution to the development of the residential buildings at Rengle in Mataró.

Its contemporary, refined, and functional architecture has given the project its identity, providing a key added value both architecturally and commercially.

Juan Andrés Medina, SORIGUÉ

 

Green Nest House es una vivienda prefabricada de madera, 100 % sostenible e industrializada.

Living by ON-A

We have developed our own line of sustainable, healthy, and efficient homes,
built using industrialised construction systems.

Green Nest House, Barcelona