Objectives Low-energy buildings should be neither expensive nor elitist. Average heating energy consumption comes to 250 kWh/m²a for Austrian building stock, to 120 kWh/m²a for new construction in accordance with the Heat Insulation Regulation of 1995, to 40 kWh/m²a for low-energy buildings and to 18 kWh/m²a for passive solar housing. In our construction projects, average heating energy consumption comes to 32 kWh/m²a, which corresponds to heating energy costs as much as 70% lower than those of comparable buildings. |