Materials, Energy and Water: Keys to Sustainability in Porta Diagonal

Sustainability is now an active principle of urban design. In Porta Diagonal, every decision made in the public space reflects this commitment: local materials, responsible water management, and solutions that combine well-being, aesthetics, and efficiency.

Materials that Contribute to the Storytelling

The use of natural and local materials roots the project in its territory, connecting it with Collserola both visually and materially. Local stone, permeable surfaces, and the Barcelona panot adapted to Esplugues’ color palette are concrete examples of how Porta Diagonal integrates identity, durability, and low environmental impact. These materials help regulate pavement temperature, reduce the “heat island” effect, and require less chemical or energy maintenance.

Biotopes and Urban Biodiversity

Biotopes play an essential role: small urban ecosystems that foster biodiversity, cool the environment, and mitigate climate impact. In Porta Diagonal, these elements are not ornamental but are integrated into the design as functional pieces of ecological resilience. They connect with native vegetation and create a natural transition toward Collserola, reinforcing the project’s landscape and environmental value.

Water as a Resource, Water as an Experience

Porta Diagonal includes a naturally filtered water sheet through biofilters. The purpose is not only aesthetic: this water cools the surroundings, attracts biodiversity, produces relaxing sounds, and contributes to a more comfortable microclimate. Water thus becomes a sensory bridge to nature—a moment of pause within the rhythm of everyday life.

Energy Efficiency, Shade and Comfort

Thanks to permeable materials, abundant vegetation, projected shade, and suitable surfaces, real thermal comfort is achieved in public spaces. This combination reduces the thermal load on the urban environment, lowers dependence on artificial cooling, and promotes a more pleasant atmosphere—for both passers-by and residents.