Delta Business Center
General information
Delta Business Center is conceived as a suspended architectural volume that allows the landscape and its natural topography to flow continuously beneath it. Rather than occupying the ground, the building rises above it, returning the terrain to ecological use and transforming the lower level into a climatic and environmental infrastructure. This strategy enables natural water management, reinforces biodiversity, and establishes a passive thermodynamic system that improves thermal comfort while reducing overall energy demand.
Located on a site that preserves traces of the former marshlands of the Llobregat River, the project occupies four plots framed by the existing urban grid. The surrounding city has been built at a higher elevation than the natural terrain, creating a basin-like condition that gives the project the character of a singular campus.
Exteriors
Access to the building occurs through an underground lobby positioned beneath a landscaped mound, physically detached from the suspended upper volume. From this point, panoramic elevators transport users upward, reinforcing the sensation of ascension into a floating structure.
The building can be experienced as a continuous architectural promenade. Exterior staircases and landscaped pathways connect levels, leading directly to individual office entrances. This circulation strategy encourages interaction with open air and vegetation, dissolving the boundary between interior and exterior.
Formally, the volumes are both porous and terraced. Internal courtyards filter light and air, while stepped terraces create outdoor surfaces at every level. This vertical multiplication of exterior space enhances environmental performance and user experience simultaneously.
The façade is fully industrialized and composed of colored metal elements that filter and reflect solar radiation. This envelope provides diffused natural light while controlling heat gain. Structurally, the building is organized in three coordinated layers, optimizing shared supports and minimizing material waste. Digital control processes, precise assembly templates, and detailed sequencing ensured construction efficiency, reduced errors, and shortened execution time.
The chromatic and textural qualities of the façade evoke the atmosphere of the historic river landscape, while its geometric rigor responds to the urban grid, mediating between natural memory and contemporary city structure.
Interiors
The project proposes an open and non-predefined spatial system. Instead of rigid programmatic configurations, the interior is designed as a flexible framework capable of adapting to future changes of use. The building operates as an evolving infrastructure rather than a fixed object, capable of transformation over time.
The interior emerges as a sequence of generous functional spaces with optimal light and climate conditions. These spaces form an efficient infrastructure capable of responding to a diversity of potential uses.
Overall, Delta Business Center is conceived not merely as an office building, but as a dynamic ecological infrastructure—flexible, resilient, and future-oriented—where architecture, landscape, and environmental performance converge into a unified and sustainable system.
Bioclimatic strategies, sustainability and circular economy
Sustainability is embedded at every scale of the project, integrating bioclimatic design, biodiversity enhancement, efficient resource management, and circular economy principles.
Natural Comfort and Energy Efficiency
The building’s orientation, solar protection, cross ventilation, and thermal mass significantly reduce energy demand. Energy modeling through a digital twin enabled optimization of the thermal envelope and courtyard configuration. The result is an annual energy demand of 55.39 kWh/m², representing a 38% reduction compared to a reference building.
Biodiversity and Microclimate
The project incorporates Mediterranean plant species adapted to the local climate, prioritizing low-water and low-maintenance vegetation. By elevating the building, ecological continuity is preserved beneath it. Green surfaces, evapotranspiration, and shading mitigate the urban heat island effect. A water pond functions as a microclimatic regulator and irrigation reservoir, promoting passive cooling and attracting local fauna. Together, vegetation and water create a resilient urban ecosystem that enhances well-being and environmental quality.
Water Management
Green terraces with water storage capacity and a sustainable drainage system channel rainwater into a visible reservoir for reuse in irrigation. High-efficiency sanitary fixtures minimize indoor consumption. These measures reduce potable water demand, support natural hydrological cycles, and lower emissions associated with water treatment and pumping.
Material Resources and Circular Economy
The project follows Life Cycle Assessment (LCA) methodologies (A1–A3 phases), prioritizing low-impact, durable, and recyclable materials. Conceived as a reversible and adaptable system, components are designed for assembly, disassembly, and reuse. Industrialization supports precision and circularity. As a result, embedded carbon emissions are reduced by 48% compared to baseline values, with a 35% circularity potential. The building operates as an urban materials bank aligned with European sustainability frameworks.
Climate Resilience
Mitigation and adaptation strategies prepare the building for future climate scenarios. Vegetation, green roofs, optimized envelope performance, and efficient water reuse strengthen resilience against heat waves, droughts, and extreme temperature fluctuations. By exceeding current standards and anticipating future regulatory demands, the project ensures long-term environmental, economic, and social sustainability.
