LEED is a set of rating systems for the design, construction, operation and maintenance of green buildings, homes and neighborhoods. The method was developed by the U.S. Green Building Council (USGBC) helping building owners and users to be environmentally responsible and learn to use available resources efficiently.
LEED certification Approach is using a standardized process to further enhance the opportunities for success for the project design team. The process includes three phases:
This is the most important phase of the process and can be seen as an extension of what is commonly called "Pre-Planning". It is almost impossible for a project's environmental objectives to be achieved in a cost-effective manner if this phase is not recognized as a distinct and essential phase of the design process.
The design phase begins with what is commonly called Schematic Design. It resembles conventional design practice in its structure, but incorporates all the work and collective understanding of ecosystem interactions captured during the first phase.
This third stage focuses on implementing performance measurement and establishing performance feedback mechanisms. This feedback is critical for potential fine-tuning of manufacturing data and the extent to which performance targets are being met. Then, corrective action can be assessed if necessary.
The final evaluation of the building or area under consideration is based on the total number of points it collects in separate rating categories, in accordance with the LEED system the project is evaluated. Depending on the total number of points collected, the certifications given are of 4 levels and are as follows:
Certified 40–49 points
Silver 50–59 points
Gold 60–79 points
Platinum 80 points and above