All Buildings By Greenhouse Gas Intensity

These are the Chicago's benchmarked buildings that reported the highest greenhouse gas intensity i.e. emissions per square foot. Large, efficient, buildings can perform much better than very inefficient small buildings on this metric.

Note: Data From Large Buildings in 2023

Note: This data only includes buildings whose emissions are reported under the Chicago Energy Benchmarking Ordinance. According to the City “As of 2016, this list includes all commercial, institutional, and residential buildings larger than 50,000 square feet.”

The latest year of data is from 2023, but we update the site regularly when new data is available, and some buildings may have failed to report that year, and only have older data available.

Additionally, note that all tons specified are metric tons.

Name / Address	Primary Property Type	GHG Intensity (kg CO₂ eq./sqft)	Total GHG Emissions (tons CO₂ eq.)
George W Dunne Cook County Office Building 69 W. Washington Street	Office	4.8 kg/sqft Lowest 31%	3,921 tons Highest 9%
30 North LaSalle Street ⚠️ 30 North Lasalle Street	Office	4.8 kg/sqft Lowest 31%	5,234 tons Highest 6%
Glenwood Apartments 🕰️ 6701 N Glenwood Ave	Multifamily Housing	4.8 kg/sqft	261 tons
Pratt Blvd Place Condo Assoc 1645-63 W Pratt Condo Assoc	Multifamily Housing	4.8 kg/sqft Lowest 31%	329 tons Lowest 11%
Marist High School 4200 W. 115th Street	K-12 School	4.8 kg/sqft Lowest 31%	1,152 tons Highest 39%
St. Rita of Cascia High School 7740 South Western Avenue	K-12 School	4.8 kg/sqft Lowest 31%	1,318 tons Highest 34%
Westerly - CO (ws320) 740 N Aberdeen St	Multifamily Housing	4.7 kg/sqft Lowest 29%	1,035 tons Highest 42%
The Hampdens 2773 N Hampden Ct	Multifamily Housing	4.7 kg/sqft Lowest 29%	470 tons Lowest 25%
1143 S Plymouth Court 1143 S Pllymouth Court	Multifamily Housing	4.7 kg/sqft Lowest 29%	641 tons Lowest 39%
Madden Wells Ph 1B ⚠️ 743 East 38th St	Multifamily Housing	4.7 kg/sqft Lowest 29%	946 tons Highest 45%
311 W. Illinois 311 W. Illinois Street	Multifamily Housing	4.7 kg/sqft Lowest 29%	1,382 tons Highest 33%
Linkt Apartments 830 North Milwaukee	Multifamily Housing	4.7 kg/sqft Lowest 29%	257 tons Lowest 4%
Prairie District Lofts Condominium Association 🕰️ ⚠️ 1727 S Indiana Ave	Multifamily Housing	4.7 kg/sqft	819 tons
Haberdasher SOuare Lofts 728 W Jackson Blvd	Multifamily Housing	4.7 kg/sqft Lowest 29%	1,977 tons Highest 22%
Buck City Lofts 1740 N Maplewood Ave	Multifamily Housing	4.7 kg/sqft Lowest 29%	445 tons Lowest 22%

Data Source: Chicago Energy Benchmarking Data