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.)
LaSalle Terrace Condominium Association 1540 N. Lasalle St.	Multifamily Housing	6.1 kg/sqft Highest 46%	919 tons Highest 46%
Onni 200 LaSalle ⚡ 200 N Lasalle Ave	Office	6.1 kg/sqft Highest 46%	4,249 tons Highest 8%
Evergreen Tower I 1333 N. Cleveland Ave	Multifamily Housing	6.1 kg/sqft Highest 46%	562 tons Lowest 33%
Indian Trail Apartments 221 E 121st Place	Multifamily Housing	6.1 kg/sqft Highest 46%	941 tons Highest 46%
Haven Towers 7947 S. South Chicago Ave.	Multifamily Housing	6.1 kg/sqft Highest 46%	374 tons Lowest 15%
235-Senior Suites of New City 4845 S. Western Avenue	Senior Living Community	6.1 kg/sqft Highest 46%	543 tons Lowest 31%
Gallery 1250 (ga021) 1250 N La Salle St	Multifamily Housing	6.1 kg/sqft Highest 46%	873 tons Highest 48%
Onni Van Buren Chicago LLC ⚡ 550 West Van Buren Street	Office	6.1 kg/sqft Highest 46%	2,032 tons Highest 21%
123 N Wacker ⚡ 123 N Wacker	Office	6.1 kg/sqft Highest 46%	3,388 tons Highest 10%
One North Franklin (PNC Center) ⚡ 1 N. Franklin	Office	6.1 kg/sqft Highest 46%	4,401 tons Highest 8%
Friendly Towers 920 W. Wilson	Multifamily Housing	6.0 kg/sqft Highest 48%	745 tons Lowest 45%
4144 N Sheridan 📷 4144 N Sheridan	Multifamily Housing	6.0 kg/sqft Highest 48%	306 tons Lowest 9%
Canal Crossing Condominiums 📷 2322 S Canal St	Multifamily Housing	6.0 kg/sqft Highest 48%	329 tons Lowest 11%
1550 North Clark Condo (1550 N Clark St ) 1550 N Clark St	Multifamily Housing	6.0 kg/sqft Highest 48%	695 tons Lowest 42%
61 E Banks ⚠️ 61 E Banks	Multifamily Housing	6.0 kg/sqft Highest 48%	776 tons Lowest 47%

Data Source: Chicago Energy Benchmarking Data