Two Praxis Projects Win at the Green Solutions Awards 2024–2025
We’re thrilled to announce that two projects we’ve been deeply involved in—Mirador de Gracia in Barcelona and Guacamayas in Puerto Madero, Colombia—have taken home top honours in this year’s Green Solutions Awards 2024–2025.
Two Praxis Projects Win at the Green Solutions Awards 2024–2025
We’re thrilled to announce that two projects we’ve been deeply involved in—Mirador de Gracia in Barcelona and Guacamayas in Puerto Madero, Colombia—have taken home top honours in this year’s Green Solutions Awards 2024–2025.
The Green Solutions Awards, organised by the Construction21 platform, aim to spotlight exemplary buildings that offer real-world answers to climate challenges. We’re proud to see both of these very different—but equally inspiring—projects recognised on this stage.
From the jury
“The project’s focus on elderly people’s comfort and its highly energy-efficient systems make it a great example of sustainability.”
Full case study
New Construction Grand Prize – Spain
Mirador de Gracia Senior Residence, Barcelona
Mirador de Gracia is a nine-storey, fully electric care home located in the heart of Barcelona. It’s the first certified Passive House building of its type in Catalonia, designed with one clear goal: comfort for its elderly residents, without compromising on sustainability.
Working closely with GENARS (Joaquim Rigau), FIATC Residencias, Arnó Infraestructuras, and Agefred, we supported the project with advanced thermodynamic simulation and Passivhaus design throughout the process.
Despite a challenging urban context and the complexities of achieving airtightness in a large building (n50 = 0.6 ach!), the result is a super-efficient, all-electric building packed with innovation—including heat recovery ventilation with automated flow rate control, solar PV, and a high performance thermal envelope. The goal? To smash the metrics that matter: comfort, energy use, and long-term resilience.
Health & Comfort Prize + Special Mention for Hot Climates
Guacamayas, Puerto Madero, Cartagena, Colombia
The Guacamayas duplexes- developed by Andrew Strauss of Cosinfra and Enrique Bueno of E+ Buildings- are part of the pioneering Puerto Madero eco-housing project in Cartagena, Colombia.
This one was a certifier’s dream and challenge in equal measure: hot and humid tropical climate, year-round average temps of 28ºC+, and very high solar gains. And yet, with a carefully detailed passive design approach—including orientation, shading, insulation, and airtight construction—the buildings achieved a stunning 90% reduction in energy demand compared to conventional builds.
From the jury
“The project’s passive approach drastically reduces energy consumption and illustrates what sustainable buildings could look like in tropical climates.”
Full case study
What these awards tell us
Whether it’s a multi-storey care home in the Mediterranean or duplex homes in coastal Colombia, the core message is the same: Passive House design delivers. Performance, comfort, health, and real carbon savings—adapted to place, climate, and user needs.
A massive thanks and congratulations to all the collaborators who made these projects happen. Onwards!