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 2020. 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 only includes large Chicago buildings from 2020

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.

This data is also from 2020, but when new benchmark data is available, we'll update the site.

Property Name / address	Primary Property Type	Square Footage	Greenhouse Gas Intensity (kg CO₂ eq./sqft)	Total Greenhouse Emissions (metric tons CO₂ eq.)
Metropolitan Pier and Exposition Authority 🚨 📷 301 Cermak Rd	Convention Center	9,245,333 sqft #1 Highest	8.3 kg/sqft Highest 42%	76,935 tons #4 Highest
Rush University Medical Center 🚨 1653 W Congress Pkwy	Hospital (General Medical & Surgical)	5,863,656 sqft #2 Highest	26.4 kg/sqft Highest 4%	102,661 tons #3 Highest
5841 S. Maryland Ave MC0985 🚨 (UChicago) 5841 S. Maryland Ave MC0985	Hospital (General Medical & Surgical)	5,441,713 sqft #3 Highest	26.9 kg/sqft Highest 4%	146,536 tons #2 Highest
Cook County Department of Corrections Campus 🚨 2700 S California Ave	Prison/Incarceration	5,283,746 sqft #4 Highest	11.1 kg/sqft Highest 24%	50,507 tons #5 Highest
Willis Tower 🚨 📷 233 S Wacker Dr	Office	5,037,125 sqft #5 Highest	8.8 kg/sqft Highest 37%	43,675 tons #8 Highest
Merchandise Mart 🚩 📷 222 Merchandise Mart Plz	Office	4,259,185 sqft #6 Highest	5.1 kg/sqft Lowest 9%	20,933 tons #17 Highest
Aon Center 🚩 200 E Randolph St	Office	3,457,865 sqft #7 Highest	6.5 kg/sqft Lowest 29%	20,741 tons #22 Highest
IL0000FC - Chicago Federal Ctr 🚩 219 S Dearborn	Mixed Use Property	3,176,860 sqft #8 Highest	5.8 kg/sqft Lowest 16%	18,413 tons #29 Highest
The Franklin 🚩 227 W Monroe	Office	3,135,770 sqft #9 Highest	7.4 kg/sqft Lowest 45%	22,015 tons #16 Highest
Presidential Towers 🚩 555 W Madison St	Multifamily Housing	3,045,000 sqft #10 Highest	5.0 kg/sqft Lowest 8%	13,672 tons #47 Highest
Prudential Plaza 🚩 130 E Randolph St	Office	3,021,067 sqft #11 Highest	7.6 kg/sqft Lowest 48%	20,898 tons #18 Highest
10/30 South Wacker 🚩 10 S Wacker Dr	Office	3,014,304 sqft #12 Highest	7.1 kg/sqft Lowest 40%	20,376 tons #23 Highest
Water Tower Place 🚩 845 N Michigan Ave	Mixed Use Property	2,984,641 sqft #13 Highest	8.6 kg/sqft Highest 39%	22,117 tons #15 Highest
900 North Michigan 🚩 900 North Michigan	Mixed Use Property	2,731,896 sqft #14 Highest	9.7 kg/sqft Highest 31%	20,806 tons #21 Highest
The John Hancock Center 🚩 📷 875 N Michigan Ave	Mixed Use Property	2,620,946 sqft #15 Highest	9.7 kg/sqft Highest 31%	22,228 tons #14 Highest
Trump International Hotel & Tower Chicago 🚩 401 N Wabash Ave	Mixed Use Property	2,612,396 sqft #16 Highest	8.3 kg/sqft Highest 42%	17,566 tons #33 Highest
Chase Tower Chicago 🚩 10 S Dearborn St	Financial Office	2,521,929 sqft #17 Highest	4.6 kg/sqft Lowest 5%	11,190 tons Highest 5%
Hyatt Regency Chicago 🚩 151 E Wacker Dr	Hotel	2,295,495 sqft #18 Highest	6.5 kg/sqft Lowest 29%	13,219 tons #49 Highest
300 E Randolph 🚨 300 E Randolph	Office	2,286,697 sqft #19 Highest	11.1 kg/sqft Highest 24%	24,655 tons #11 Highest
600 W Chicago 🚨 600 W Chicago	Office	2,266,502 sqft #20 Highest	13.8 kg/sqft Highest 15%	29,599 tons #9 Highest
NMH Feinberg Pavilion and Galter Pavilion 🚨 251 E Huron St	Hospital (General Medical & Surgical)	2,200,000 sqft #21 Highest	20.6 kg/sqft Highest 8%	45,388 tons #6 Highest
Michigan Plaza 🚩 205 N Michigan Ave	Office	2,159,198 sqft #22 Highest	7.7 kg/sqft Lowest 50%	15,937 tons #36 Highest
55 E Monroe 🚩 55 E Monroe St	Office	2,144,478 sqft #23 Highest	9.3 kg/sqft Highest 34%	15,558 tons #37 Highest
Hilton Chicago 🚩 720 S Michigan Ave	Hotel	2,054,590 sqft #24 Highest	6.6 kg/sqft Lowest 31%	13,461 tons #48 Highest
River East Center Campus 🚩 322 E Illinois St	Mixed Use Property	1,975,361 sqft #25 Highest	10.2 kg/sqft Highest 28%	15,479 tons #38 Highest
680 North Lake Shore Drive 680 N Lake Shore Dr	Multifamily Housing	1,945,838 sqft #26 Highest	5.3 kg/sqft Lowest 11%	8,773 tons Highest 8%
Ford City Mall 🚩 7601 S Cicero Ave	Enclosed Mall	1,939,923 sqft #27 Highest	22.2 kg/sqft Highest 7%	19,161 tons #26 Highest
River North Point 🚩 350 N Orleans St	Office	1,883,966 sqft #28 Highest	10.2 kg/sqft Highest 28%	19,305 tons #25 Highest
AMA Plaza 🚩 330 N Wabash Av	Office	1,881,319 sqft #29 Highest	9.8 kg/sqft Highest 30%	18,347 tons #30 Highest
175 W Jackson 175 W Jackson	Office	1,863,650 sqft #30 Highest	5.9 kg/sqft Lowest 18%	10,690 tons Highest 6%
Citigroup Center 🚩 500 W Madison St	Office	1,855,810 sqft #31 Highest	7.8 kg/sqft Highest 49%	14,397 tons #43 Highest
71215A State St 101 N State St E	Retail Store	1,841,736 sqft #32 Highest	5.7 kg/sqft Lowest 15%	10,414 tons Highest 6%
Advocate Illinois Masonic Medical Center 🚩 836 W Wellington Ave	Hospital (General Medical & Surgical)	1,836,457 sqft #33 Highest	13.5 kg/sqft Highest 16%	17,649 tons #32 Highest
Juvenile Temporary Detention Center 1100 S Hamilton Ave	Mixed Use Property	1,812,628 sqft #34 Highest	9.5 kg/sqft Highest 33%	9,742 tons Highest 6%
Hyatt Center 🚩 71 S Wacker Dr	Office	1,797,097 sqft #35 Highest	8.6 kg/sqft Highest 39%	14,570 tons #42 Highest
Navy Pier, Inc. 📷 600 E Grand Ave	Mixed Use Property	1,780,000 sqft #36 Highest	11.0 kg/sqft Highest 24%	12,638 tons Highest 4%
The Palmer House Hotel 🚩 17 E Monroe St	Hotel	1,749,427 sqft #37 Highest	6.6 kg/sqft Lowest 31%	11,168 tons Highest 5%
20 N Wacker Dr 20 N Wacker Dr	Office	1,742,899 sqft #38 Highest	5.5 kg/sqft Lowest 13%	9,538 tons Highest 7%
309-The Breakers at Edgewater Beach 🏆 5333 N Sheridan Rd	Senior Living Community	1,742,595 sqft #39 Highest	1.8 kg/sqft #1 Lowest	3,180 tons Highest 28%
Lake Point Tower 505 N Lake Shore Dr	Multifamily Housing	1,705,000 sqft #40 Highest	6.9 kg/sqft Lowest 36%	10,182 tons Highest 6%
Roosevelt Collection 150 W Roosevelt Rd	Mixed Use Property	1,686,996 sqft #41 Highest	4.6 kg/sqft Lowest 5%	4,988 tons Highest 16%
One North Wacker 🚩 1 N Wacker Dr	Office	1,684,690 sqft #42 Highest	7.9 kg/sqft Highest 47%	12,683 tons Highest 4%
Aqua 🚩 📷 225 N Columbus Dr	Multifamily Housing	1,668,187 sqft #43 Highest	10.0 kg/sqft Highest 29%	12,896 tons Highest 4%
Grand Plaza 🚩 540 N State St	Multifamily Housing	1,640,000 sqft #44 Highest	8.5 kg/sqft Highest 40%	9,525 tons Highest 7%
Three First National Plaza 70 W Madison St	Office	1,636,819 sqft #45 Highest	6.5 kg/sqft Lowest 29%	10,364 tons Highest 6%
311 S Wacker 🚩 311 S Wacker	Office	1,627,486 sqft #46 Highest	7.5 kg/sqft Lowest 46%	10,757 tons Highest 5%
Stroger Hospital Campus 🚨 1901 W Harrison St	Hospital (General Medical & Surgical)	1,596,300 sqft #47 Highest	28.3 kg/sqft #42 Highest	45,230 tons #7 Highest
Richard J Daley Center 🚩 50 W Washington	Courthouse	1,593,714 sqft #48 Highest	6.9 kg/sqft Lowest 36%	10,603 tons Highest 6%
300 North LaSalle 🚩 300 N LaSalle St	Office	1,587,805 sqft #49 Highest	7.2 kg/sqft Lowest 42%	10,862 tons Highest 5%
Chicago Board of Trade Building 🚩 141 W Jackson Blvd	Office	1,559,956 sqft #50 Highest	8.0 kg/sqft Highest 46%	12,507 tons Highest 4%

Data Source: Chicago Energy Benchmarking Data