Top 50 Buildings By Square Footage

These are the biggest buildings in our dataset, which should encompass all of the largest buildings in the city that submitted their energy use for 2022. Being a big building does basically guarantee that you use a lot of energy (and emit a lot of CO₂), but a lot of big buildings are very energy efficient and use less energy per square foot than much smaller buildings!

Note: Data From Large Buildings in 2022

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.” This dataset is also then filtered to only buildings with reported emissions > 1,000 metric tons CO₂ equivalent.

The latest year of data is from 2022, 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	Square Footage	GHG Intensity (kg CO₂ eq./sqft)	Total GHG Emissions (tons CO₂ eq.)
Metropolitan Pier and Exposition Authority 🚨 📷 301 E Cermak Rd	Convention Center	9,245,333 sqft #1 Highest	8.7 kg/sqft Highest 20%	80,845 tons #3 Highest
Rush University Medical Center 🚨 1653 W Congress Pkwy	Hospital (General Medical & Surgical)	5,863,656 sqft #2 Highest	23.7 kg/sqft #36 Highest	92,454 tons #2 Highest
5841 S. Maryland Ave MC0985 🚨 (UChicago) 5841 S. Maryland Ave MC0985	Hospital (General Medical & Surgical)	5,441,713 sqft #3 Highest	25.0 kg/sqft #27 Highest	135,876 tons #1 Highest
Cook County Department of Corrections Campus 🚨 2700 S California Ave	Prison/Incarceration	5,283,773 sqft #4 Highest	9.3 kg/sqft Highest 17%	42,560 tons #4 Highest
Willis Tower 🚨 📷 233 S Wacker Dr	Office	4,600,624 sqft #5 Highest	9.2 kg/sqft Highest 18%	41,767 tons #6 Highest
Merchandise Mart 🚩 📷 222 Merchandise Mart Plz	Office	4,259,185 sqft #6 Highest	4.7 kg/sqft Lowest 20%	19,236 tons #15 Highest
Aon Center 🚩 200 E Randolph St	Office	3,457,865 sqft #7 Highest	6.1 kg/sqft Lowest 45%	19,331 tons #14 Highest
IL0000FC-CHICAGO FEDERAL CTR 🕰️ 219 S Dearborn	Mixed Use Property	3,176,860 sqft	5.8 kg/sqft	18,420 tons
The Franklin 🚩 227 W Monroe	Office	3,135,770 sqft #8 Highest	5.0 kg/sqft Lowest 25%	14,830 tons #32 Highest
Prudential Plaza 🚩 130 E Randolph St	Office	3,021,067 sqft #9 Highest	6.5 kg/sqft Highest 49%	17,965 tons #20 Highest
10/30 South Wacker 🚩 10 S Wacker Dr	Office	3,014,304 sqft #10 Highest	6.4 kg/sqft Lowest 49%	18,395 tons #18 Highest
Water Tower Place 🚨 845 N Michigan Ave	Mixed Use Property	2,984,641 sqft #11 Highest	8.7 kg/sqft Highest 20%	22,501 tons #10 Highest
Illinois Institute of Technology 🕰️ (Illinois Tech) 3300 South Federal Street	College/University	2,944,091 sqft	15.6 kg/sqft	45,930 tons
900 North Michigan 🚨 900 North Michigan	Mixed Use Property	2,731,896 sqft #12 Highest	9.8 kg/sqft Highest 14%	20,835 tons #11 Highest
The John Hancock Center 🚩 📷 875 N Michigan Ave	Mixed Use Property	2,620,946 sqft #13 Highest	7.0 kg/sqft Highest 39%	15,923 tons #26 Highest
Trump International Hotel & Tower Chicago 🚩 401 N Wabash Ave	Mixed Use Property	2,612,396 sqft #14 Highest	7.5 kg/sqft Highest 31%	15,949 tons #25 Highest
Chase Tower Chicago 🕰️ 10 S Dearborn St	Financial Office	2,521,929 sqft	4.6 kg/sqft	11,190 tons
Old Chicago Main Post Office 🚩 404 W HARRISON ST	Office	2,493,160 sqft #15 Highest	5.9 kg/sqft Lowest 40%	14,703 tons #34 Highest
135 S LaSalle Property LLC 🚩 135 S LaSalle St	Office	2,453,127 sqft #16 Highest	4.1 kg/sqft Lowest 11%	9,969 tons Highest 2%
Presidential Towers 🚩 555 W Madison St	Multifamily Housing	2,409,540 sqft #17 Highest	6.1 kg/sqft Lowest 45%	12,830 tons #43 Highest
600 W Chicago 🚨 600 W Chicago	Office	2,388,977 sqft #18 Highest	10.7 kg/sqft Highest 11%	24,266 tons #8 Highest
Michigan Plaza 🚩 205 N Michigan Ave	Office	2,344,224 sqft #19 Highest	6.5 kg/sqft Highest 49%	14,620 tons #35 Highest
Hyatt Regency Chicago 🚩 151 E Wacker Dr	Hotel	2,295,495 sqft #20 Highest	7.7 kg/sqft Highest 29%	15,625 tons #29 Highest
300 E Randolph 🕰️ 300 E Randolph	Office	2,286,697 sqft	11.1 kg/sqft	24,655 tons
NMH Feinberg Pavilion and Galter Pavilion 🚨 (Northwestern) 251 E Huron St	Hospital (General Medical & Surgical)	2,200,000 sqft #21 Highest	19.0 kg/sqft Highest 3%	41,775 tons #5 Highest
55 E Monroe 🚩 55 E Monroe St	Office	2,065,629 sqft #22 Highest	8.1 kg/sqft Highest 25%	12,987 tons #41 Highest
Hilton Chicago 🚩 720 S Michigan Ave	Hotel	2,054,590 sqft #23 Highest	8.2 kg/sqft Highest 24%	16,801 tons #23 Highest
River East Center Campus 🚩 322 E Illinois St	Mixed Use Property	1,976,978 sqft #24 Highest	8.0 kg/sqft Highest 26%	12,061 tons #47 Highest
680 North Lake Shore Drive 680 N Lake Shore Dr	Multifamily Housing	1,945,838 sqft #25 Highest	4.6 kg/sqft Lowest 18%	7,569 tons Highest 4%
Aqua 🚩 📷 225 N Columbus Dr	Multifamily Housing	1,938,443 sqft #26 Highest	5.4 kg/sqft Lowest 31%	8,464 tons Highest 3%
River North Point 🚩 350 N Orleans St	Office	1,883,966 sqft #27 Highest	8.3 kg/sqft Highest 23%	15,659 tons #28 Highest
AMA Plaza 🚩 330 N Wabash Av	Office	1,881,319 sqft #28 Highest	10.6 kg/sqft Highest 11%	19,786 tons #13 Highest
Citigroup Center 🚩 500 W Madison St	Office	1,877,620 sqft #29 Highest	7.0 kg/sqft Highest 39%	12,992 tons #40 Highest
175 W Jackson 175 W Jackson	Office	1,863,650 sqft #30 Highest	5.2 kg/sqft Lowest 28%	9,342 tons Highest 3%
71215A State St 🚩 101 N State St E	Retail Store	1,841,736 sqft #31 Highest	8.0 kg/sqft Highest 26%	14,741 tons #33 Highest
Juvenile Temporary Detention Center 1100 S Hamilton Ave	Mixed Use Property	1,812,628 sqft #32 Highest	8.2 kg/sqft Highest 24%	8,346 tons Highest 3%
Hyatt Center 🚩 71 S Wacker Dr	Office	1,797,097 sqft #33 Highest	7.0 kg/sqft Highest 39%	11,762 tons #49 Highest
Advocate Illinois Masonic Medical Center 🚩 836 W Wellington Ave	Hospital (General Medical & Surgical)	1,792,682 sqft #34 Highest	12.3 kg/sqft Highest 8%	15,611 tons #30 Highest
Lake Point Tower 505 N Lake Shore Dr	Multifamily Housing	1,783,891 sqft #35 Highest	5.7 kg/sqft Lowest 37%	8,908 tons Highest 3%
Navy Pier, Inc. 🚩 📷 600 E Grand Ave	Mixed Use Property	1,780,000 sqft #36 Highest	12.3 kg/sqft Highest 8%	14,089 tons #36 Highest
110 N WACKER DR 🚩 110 N WACKER DR	Office	1,770,000 sqft #37 Highest	6.5 kg/sqft Highest 49%	11,304 tons Highest 2%
The Palmer House Hotel 🚨 17 E Monroe St	Hotel	1,749,427 sqft #38 Highest	8.0 kg/sqft Highest 26%	13,521 tons #37 Highest
20 N Wacker Dr 🚩 20 N Wacker Dr	Office	1,742,899 sqft #39 Highest	5.5 kg/sqft Lowest 33%	9,583 tons Highest 3%
309-The Breakers at Edgewater Beach 🏆 5333 N Sheridan Rd	Senior Living Community	1,742,595 sqft #40 Highest	1.4 kg/sqft #13 Lowest in Chicago*	2,440 tons Highest 18%
Roosevelt Collection 150 W Roosevelt Rd	Mixed Use Property	1,686,996 sqft #41 Highest	4.6 kg/sqft Lowest 18%	4,991 tons Highest 7%
One North Wacker 🚩 1 N Wacker Dr	Office	1,684,690 sqft #42 Highest	7.2 kg/sqft Highest 35%	11,681 tons #50 Highest
Grand Plaza 540 N State St	Multifamily Housing	1,640,000 sqft #43 Highest	7.2 kg/sqft Highest 35%	8,005 tons Highest 4%
Three First National Plaza 🚩 70 W Madison St	Office	1,636,819 sqft #44 Highest	6.3 kg/sqft Lowest 48%	10,013 tons Highest 2%
311 S Wacker 🚩 311 S Wacker	Office	1,627,486 sqft #45 Highest	6.6 kg/sqft Highest 47%	9,513 tons Highest 3%
Stroger Hospital Campus 🚨 1901 W Harrison St	Hospital (General Medical & Surgical)	1,596,300 sqft #46 Highest	24.8 kg/sqft #29 Highest	39,603 tons #7 Highest

Data Source: Chicago Energy Benchmarking Data