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Over the years, LEED has undergone many changes and is now currently in its fourth iteration, which was launched in late 2013. [26] Taipei 101, the tallest and largest LEED Platinum certified building in the world since 2011. LEED rating systems differ according to the type of the project. [27] The different types of rating systems fall under: [27]
In 2013 Scofield identified 21 LEED-certified New York City office buildings with publicly available energy performance data for 2011, out of 953 office buildings in New York City with such data. [123] Results differed with certification level. LEED-Gold buildings were found to use 20% less source energy than conventional buildings.
Projects may earn one of four levels of LEED certification (Certified, Silver, Gold or Platinum) by achieving a given number of point-based credits within the rating system. Development of LEED began in 1993, spearheaded by Natural Resources Defense Council (NRDC) senior scientist Robert K. Watson.
LEED has four different levels of certification. All depending on how many credits and points were obtained through the LEED Rating System. There are 100 possible base points plus an additional 6 points for Innovation in Design and 4 points for Regional Priority. Buildings can qualify for 4 types of certification: Certified: 40-49 Points
All LEED-ND projects are required to have at least one certified green building – "the LEED rating for new construction requires developers to complete a detailed checklist and awards 64 possible points for green building practices". [4] Basic certification requires 40-49 points, silver 50-59 points, gold 60-79 points, and 80+ points for ...
Starting in November, new permit applications for high-rise residential building must submit documentation to achieve LEED certification, and that requirement ratchets up to LEED Silver in 2009 and LEED Gold in 2012. There are also requirements to meet additional LEED standards, nearly equal to those for mid-size commercial buildings.
They currently offer four levels of certification for existing buildings (LEED-EBOM) and new construction (LEED-NC) based on a building's compliance with the following criteria: Sustainable sites, water efficiency, energy and atmosphere, materials and resources, indoor environmental quality, and innovation in design. [32]
A LEED professional credentials provides employers, policymakers, and other stakeholders with assurances of an individual's current level of competence and is the mark of the most qualified, educated, and influential green building professionals in the marketplace. [1]