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.



WELLTM is the first public benefit corporation that is leading the movement to promote health and wellness in buildings and communities everywhere.
WELL Certified™ spaces can help create buildings that improve the nutrition, fitness, mood, sleep patterns, productivity and performance of its occupants.
WELL is composed of over 100 features that are applied to each building project.
WELL is the leading tool for advancing health and well-being in buildings globally.



BREEAM is a sustainability assessment method, launched in 1988 by the Building Research Establishment (BRE).  
BREEAM is one of the longest-lasting established method of assessing, rating, and certifying the sustainability of buildings.
BREEAM assessment evaluates the procurement, design, construction and operation of a development against a range of targets based on performance benchmarks.
Through a scorecard system, BREEAM assess the environmental, social and economic sustainability performance of the whole building’s life cycle.



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.