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.)
1540 N STATE PKWY 🕰️ ⚠️ 1540 N STATE PKWY	Multifamily Housing	4.2 kg/sqft	440 tons
1414 North Wells Condominium Association 1414 N. Wells St.	Multifamily Housing	4.2 kg/sqft Lowest 12%	336 tons Lowest 12%
529 West Wellington 529 - 41 West Wellington Avenue	Multifamily Housing	4.2 kg/sqft Lowest 12%	335 tons Lowest 12%
606 West Cornelia LLC 606-620 W. Cornelia Ave.	Multifamily Housing	4.2 kg/sqft Lowest 12%	304 tons Lowest 8%
Malden Property LLC ⚠️ 4501-4519 N Malden St	Multifamily Housing	4.2 kg/sqft Lowest 12%	334 tons Lowest 12%
Harper Place Condominium Association 5309-5343 S Harper Place	Multifamily Housing	4.2 kg/sqft Lowest 12%	370 tons Lowest 14%
450 Briar Place Condominium Association 450 W. Briar Pl.	Multifamily Housing	4.2 kg/sqft Lowest 12%	674 tons Lowest 41%
Magnolia Gardens, LLC 4845 4859 N Magnolia Ave	Multifamily Housing	4.2 kg/sqft Lowest 12%	212 tons Lowest 2%
5034 S Woodlawn Ave 🏆 5034-5040 S Woodlawn Ave	Multifamily Housing	4.2 kg/sqft Lowest 12%	257 tons Lowest 4%
Webster SOuare Condominiums 540 W Webster	Multifamily Housing	4.1 kg/sqft Lowest 10%	846 tons Lowest 50%
320 N Sangamon 320 North Sangamon	Office	4.1 kg/sqft Lowest 10%	1,270 tons Highest 36%
Hale Lofts 🕰️ ⚠️ 14 N Peoria Street	Multifamily Housing	4.1 kg/sqft	449 tons
2031-37 N Milwaukee LLC 2025 N Milwaukee	Multifamily Housing	4.1 kg/sqft Lowest 10%	285 tons Lowest 7%
Old Town Park 2 202 W Hill St	Multifamily Housing	4.1 kg/sqft Lowest 10%	2,848 tons Highest 14%
Terra Cotta Commons Condominium 1760 W Wrightwood	Multifamily Housing	4.1 kg/sqft Lowest 10%	204 tons Lowest 1%

Data Source: Chicago Energy Benchmarking Data