The residential and commercial Kalkbreite complex was built in accordance with the Swiss environmentally friendly Minergie-P-Eco construction standard. The building is equipped with solar panels, which produced a good portion of the electricity, as well as a groundwater pump for heat and hot water. Kalkbreite also embraces economic sustainability, meaning the average individual living space per person is far below the Swiss average. This ensures space, a scarce resource in Zurich, is optimally used. In addition, a balanced mix of tenants and business premises meets social sustainability goals.