Case studies

The renovation of the Mergelina Faculty (Valladolid, Spain) transforms a 1960s building into a benchmark for efficiency: advanced insulation, smart solar control and ventilation with heat recovery cut energy demand and enhance comfort without losing identity.

Positive Home combines an airtight envelope, Cross-Laminated Timber (CLT), controlled ventilation, and 10 kW of photovoltaics with battery storage to achieve near-zero energy consumption. It also integrates water recycling and solar design, offering a replicable model of sustainable housing.

The Soprema plant in Woodstock combines an insulated envelope, efficient HVAC, and smart control to reduce energy consumption. Certified LEED v4 BD+C, it stands out for waste management and indoor quality, offering a replicable model for the sustainable industry.

Claude Lorius Middle School in France combines bioclimatic design, advanced insulation, and renewable energy sources to achieve a positive-energy building. Its approach integrates comfort, efficiency, and smart monitoring, setting a replicable model for sustainable educational facilities.

Mirador de Gràcia, the first senior Passivhaus residence in Catalonia, combines comfort and sustainability. With efficient design, 100% electric and photovoltaic energy, it cuts energy consumption by 70%, ensuring well-being, air quality and unique views.

The refurbishment of Liège’s Cité Administrative combines photovoltaics, geothermal energy, and an optimised envelope to achieve a near carbon-neutral building. It integrates digital management and passive solutions, proving that efficiency can be achieved without demolition.

The Ice Box Challenge Oslo shows how the PassivHaus standard and circular design reduce energy losses and carbon footprint. With extreme insulation, airtightness and reusable materials, it achieves up to 90% heating savings and promotes sustainable construction.

Menara 2 BTN cuts its energy consumption by more than 21% compared to the national standard, thanks to LED lighting, optimised air-conditioning systems, and efficient water management, proving that sustainability in tropical climates is achievable.

With an annual energy consumption of just 4 kWh/m², the energy retrofit of ShowPass proves that comfort, urban aesthetics and decarbonisation can go hand in hand in Mediterranean settings.

Rehabilitating with a combination of air-to-water heat pumps, a passive solar wall, and 375 photovoltaic panels with storage can achieve a 30% reduction in the energy bill. A hybrid ventilation system and optimised envelope enable a final consumption of just 120 kWh/m²/year.