The construction of new buildings is done according to high sustainability standards and contractors are required whenever possible, to implement and use processes aimed at reducing CO2 emission and improving recycling. In renovations, we use local and/or certified materials. In general, water, energy and electric performance and savings (Minergie and Microgrid certifications) are taken into account. E.g. one of our construction sites is a certified 2000 Watt area, an association which combines the national efficiency guidelines for energy with the Paris Climate Agreement 2015. An inter-generational mix with families and seniors is favored, facilitating social contacts, security and help.