El Niu, multi-family Passivhaus

El Niu, meaning the “Nest” in Catalan, is Andorra’s first multi-residential Passivhaus Plus certified building, and was certified by Oliver Style of Praxis Resilient Buildings, developed by Lluis Lopez Castro of Propietats y Gestió, and designed by Antoni Martí.

El Niu, multi-family Passivhaus

Passivhaus Certification

Praxis cabecera proyectos

Description

El Niu, meaning the “Nest” in Catalan, is Andorra’s first multi-residential Passivhaus Plus certified building, and was certified by Oliver Style of Praxis Resilient Buildings, developed by Lluis Lopez Castro of Propietats y Gestió, and designed by Antoni Martí.

Nestled up at 1275 meters above sea level, El Niu houses 11 dwelling units with a total TFA of 1292 m2 over 4 floors.

Heating and hot water is provided by Pichler PKOM 4 compact heat pump units, providing heat recovery ventilation, heating, cooling, and hot water generation.

The façade consists of two different steel frame systems: the Passivhaus certified Passivhaus External Wall System by Knauf Insulation, and the Archisol and Promisol systems by Arcelor Mittal.

A 37,7 kWp solar PV array is projected to generate 91 % what the building consumes, turning it into a nearly net-zero energy powerhouse that uses approximately 71% less than pre-2010 buildings en Andorra, while emitting only 5976 kg of CO2eq per annum.

Links:

PepiPHA

Photos: Lluis Lopez Castro

  • Year: 2024
  • Location: Ordino, Andorra
  • Architecture: Despatx d’arquitectura Antoni Martí
  • Services provided by Praxis: Passivhaus Certification, thermal bridge calculations
  • Passivhaus Certification Class: Passivhaus Plus
  • Floor area: 1.292 m2
  • Thermal envelope area: 2.677 m2
  • Blower Door result: 0,6 n50
  • Heating Demand: 20 kWh/m2·a
  • Cooling Demand: – kWh/m2·a
  • Primary Energy Renewable consumption EPR: 37 kWh/m2·a
  • Final Energy consumption: 31 kWh/m2·a
  • Renewable energy generation: 28 kWh/m2·a
  • CO2eq emissions: 11 kg/m2·a