For the third straight year Illinois leads the U.S. Green Building Council’s annual Top 10 States for LEED, with several of the state’s 2015 certified projects featuring energy-efficient design by Quad-Cities-based KJWW Engineering Consultants.

Now in its sixth year, the USGBC ranking looks at total square feet of LEED-certified space per resident, based on U.S. Census data, and includes commercial and institutional green building projects certified throughout 2015. Illinois’ 161 LEED certifications represent 3.43 square feet of certified space per resident.

KJWW-designed projects LEED-certified in Illinois in 2015 include:

·Method manufacturing plant, Chicago: LEED Platinum

·Heartland Alliance Historic Renovation, Chicago: LEED Gold

·New City Residential Tower, Chicago: LEED Gold

·College of DuPage Berg Instructional Center Expansion and Renovation, Glen Ellyn: LEED Certified

·Southern Illinois University-Edwardsville Engineering Building Addition: LEED Silver

·Argonne National Laboratory Energy Science Building, Argonne: LEED Gold

The other top LEED states for 2015, in order, are Maryland, Massachusetts, Washington, Colorado, Nevada, California, Texas, Virginia and Utah.

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