A residential building in Zaragoza that applies the Passivhaus standard as a strategic prototype to generalise nearly zero-energy consumption in real estate development.
The Residential Scenia project is a newly built multi-family residential building located in Zaragoza, Spain, comprising 26 dwellings with a total constructed area of 13,576 m². The proposal is developed in a climatic context of very hot summers and cold winters, which determines the adoption of passive strategies aimed at ensuring comfort throughout the year. The north–south orientation of the dwellings, all dual-aspect, enables cross ventilation in summer, while the terraces on the south façade act as seasonal shading devices and as solar gain spaces in winter.
The design of the thermal envelope prioritises high levels of insulation and control of thermal bridges, together with high airtightness, reducing energy losses and improving indoor stability. Ventilation is provided through systems with heat recovery, ensuring continuous air renewal. From an energy perspective, the building has a heating demand of 14 kWh/m²·year and a cooling demand of 5 kWh/m²·year, with thermal loads of 11 W/m² and 5 W/m², respectively. Primary energy consumption is 104.00 kWhpe/m²·year compared to 182.00 kWhpe/m²·year for a reference building, and final energy is 123.00 kWhfe/m²·year. The project is conceived as a prototype for the implementation of the Passivhaus standard across the developer’s portfolio, integrating design, construction, and management criteria aimed at low-energy buildings.
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