Zuhair Fayez Partnership Consultant

“LEED is transforming the way we think about how buildings and communities are designed, constructed, maintained and operated across the globe.” USGBC

LEED for Existing Building Operations and Maintenance was designed to certify the sustainability of ongoing operations of existing commercial and institutional buildings, this include ofces, retails and service establishments, libraries, schools, museums , hotels & residential buildings of four or more habitable stories.

LEED for existing building encourages owners and operators to implement sustainable practices and reduce the environmental impacts of their buildings over their functional life cycles.

LEED Certificate Categories

LEED EBOM has eight main credit categories: Location and Transportation, Sustainable Sites, Water Efciency, Energy and Atmosphere, Materials and Resources, Indoor Environmental Quality, Innovation in Design, and Regional Priority. Within each of the credit categories, there are specic prerequisites projects must satisfy and a variety of credits projects can pursue to earn points.

LEED Certificate Levels

There are four levels of certication - the number of points a project earns determines the level of LEED certication that the project will receive. Typical certication thresholds are:

LEED EBOM Examples

LEED O+M: Existing Buildings v2 - LEED 2.0
Armstrong World Industries, Corporate HQ – LEED Platinum

Name: Armstrong World Industries’ corporate headquarters
Location: Lancaster, Pennsylvania.
Area: 11,700 m²
Year of build: 1998

Achievements

• Energy Strategies
  • The LEED certication was aided by the double-paned, argon-lled, low-emissivity glazing that covers 80% of the building’s exterior. A campus-wide building automation system optimizes energy use and provides continuous feedback on the building’s performance. Armstrong achieved a 29% reduction in energy consumption.
• Water Strategies
  • The project team installed waterless urinals, dual-ush toilets, and water sensors for the faucets. In all, the project team nearly 50% of the building’s use of potable water, reducing annual use from 800,000 to 420,000 gallons. 

LEED O+M: Existing Buildings v3 - LEED 2009
Techno-Station, Obayashi Corporation

Name: Techno - Station, Obayashi Corporation
Location: Kiyose, City, Tokyo, Japan
Area: 5,530 m²
Year of build: 2010

The new main building of the Obayashi Technical Research Institute, Techno-station, was completed in September 2010, concentrating all of the Company's environmental technologies.

• Carbon Reduction
  • CO2 emissions will be reduced by 55% through aggressive use of natural energy and utilization of next-generation facilities.
• Water Reduction
  • The building achieved 30% reduction in potable water.
• Sustainable Site
  • The institute implemented alternative transportation strategies for 75% of the building occupants to reduce  pollutions and land development effects from transportation.