LEED® – Leadership in Energy and Environmental Design is a voluntary rating system that measures the sustainability level of buildings. It is one of the most diffuse rating system internationally and in Europe.  Developed since 1993 by US Green Building Council (USGBC®), it is a structured scheme for the implementation of measurable environmental strategies during the design, construction and operation of sustainable buildings.


Living Building ChallengeTM

Living Building Challenge is the most advanced sustainable standard in the world. It is a philosophy, an advocacy tool, and a certification program that addresses development at all scales. The Living Building Challenge protocol is composed by twenty Imperatives organized into seven categories called “Petals”. The goal is to bring any kind of project – Buildings for the construction of new buildings, Renovations for big renovations, Landscape and Infrastructure for parks and infrastructures, Neighborhood specific to neighbourhoods, campuses, districts or villages – to be totally regenerative with a positive impact inside the place in which it is located.



Fitwel is a cost-effective, high-impact building certification standard that optimizes building occupant health and productivity through targeted improvements to workplace design and policies. Fitwel has a vision for a healthier future where every building is enhanced to support the wellbeing of its occupants and surrounding communities. It is based on the idea that all office facilities can be improved through specific, incremental changes into healthier places to work, regardless of their size, age, and location. The US Centers for Disease Control and Prevention (CDC) and the General Services Administration (GSA) led the development of Fitwel, garnering input and reviewing over 3,000 scientific studies. The Center for Active Design (CfAD) is the operator of Fitwel, leading its widespread adoption and future development.