The Legacy at Millennium Park
Chicago Building ID: 251341
Building Info
- Square Footage
- 815,605 sqftHigher than 95% of all buildings7x median125,000 sqft6x median Multifamily Housing130,000 sqft
- Built
- 2009
- Primary Property Type
- Multifamily Housing
- Community Area
- Loop
- Ward
- 34
-
Chicago Energy Rating
- 1.5 / 4
-
Energy Star Score
- 32 / 100
- Owner
Warning - Data Discrepancies Detected
We detected some issues with this building's data, so these grades may not be reflective of the building's true performance.
2023 Report Card
Debug Full Grade Data
- AvgPercentileLetterGrade:
- AvgPercentileGrade:
- GHGIntensityLetterGrade:
- GHGIntensityPercentileGrade:
- EnergyMixLetterGrade: A
- EnergyMixWeightedPctSum: 67.64811092419882
- EnergyMixPercentileGrade: 89.20884235020361
- SubmittedRecordsLetterGrade: A
- MissingRecordsCount: 0.0
- SubmittedRecordsPercentileGrade: 100.0
Emissions & Energy Information for 2023
- Greenhouse Gas Intensity
- Not Reported
This data was not reported for this building this year, which likely means a value of zero for this field.
- Total Greenhouse Gas Emissions
- Not Reported
This data was not reported for this building this year, which likely means a value of zero for this field.
Years Reported
2/9
A

2015
2016
2017
2018
2019
2020
2021
2022
2023
Energy Breakdown for The Legacy at Millennium Park
- Fossil Gas Use (aka Natural Gas)
- 21,687,474 kBtuEst. Gas Bill: $259,000 for 2023**Higher than 91% of all buildings3.9x median5,531,309.9 kBtu3.5x median Multifamily Housing6,152,699.9 kBtu
- Electricity Use
- 25,696,725 kBtuEst. Electric Bill: $1,077,000 for 2023**Higher than 94% of all buildings7x median3,601,769.1 kBtu9x median Multifamily Housing2,714,725.3 kBtu
- District Chilled Water Use
- 19,651,993 kBtu2.7x median7,171,044.1 kBtu
Energy Mix A
Total Energy Use: 67,036,193 kBTU
Scan To Learn More
https://electrifychicago.net/building/251341
View Extra Technical & Historic Info
- Source Energy Usage Intensity
- Not Reported
This data was not reported for this building this year, which likely means a value of zero for this field.
- Site Energy Usage Intensity
- Not Reported
This data was not reported for this building this year, which likely means a value of zero for this field.
Full Historical Data Table for The Legacy at Millennium Park
| Year |
Overall Grade |
Emissions Intensity Sub-Grade |
Energy Mix Sub-Grade |
Reporting Mix Sub-Grade | GHG Intensity kg CO2e / sqft | GHG Emissions metric tons CO2e | Energy Mix | Electricity Use kBTU | Fossil Gas Use kBTU |
District Chilled Water Use kBTU | Source EUI kBTU / sqft | Floor Area sqft |
Chicago Energy Rating |
Energy Star Score |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2015 | B | C | A | A | 11.1 | 9,137 | 90%Electricity 10%Fossil Gas 0%Other | 44,156,807 | 5,001,423 | - | 174.2 | 826,051 | - | 16.0 |
| 2016 | B | D | A | A | 10.1 | 8,336 | 88%Electricity 12%Fossil Gas 0%Other | 43,513,373 | 5,956,183 | - | 173 | 826,051 | - | 19.0 |
| 2017 | - | 40,471,882 | 7,666,785 | 17,137,176 | 186.7 | 815,605 | - | 8.0 | ||||||
| 2018 | - | 43,093,287 | 8,093,806 | 18,917,927 | 179.5 | 815,605 | 1.0 | 13.0 | ||||||
| 2019 | - | 37,583,453 | 11,161,033 | 16,293,663 | 161.6 | 815,605 | 1.0 | 22.0 | ||||||
| 2020 | - | 25,785,444 | 19,950,468 | 18,181,980 | 134.5 | 1,014,137 | 3.0 | 45.0 | ||||||
| 2021 | - | 25,964,450 | 19,230,411 | 20,267,928 | 136.5 | 1,014,137 | 3.0 | 44.0 | ||||||
| 2022 | - | 27,155,150 | 21,387,874 | 17,681,854 | 140.5 | 1,014,137 | 2.0 | 46.0 | ||||||
| 2023 | - | 25,696,725 | 21,687,475 | 19,651,993 | 138.1 | 815,605 | 1.5 | 32.0 |
* Note on Rankings: Rankings and medians are among included buildings, which are those who reported under the Chicago Energy Benchmarking Ordinance for the year 2023, which only applies to buildings over 50,000 square feet.
** Note on Bill Estimates:
Estimates for gas and electric bills are based on average electric and
gas retail prices for Chicago in 2021 and
are rounded. We expect large buildings would negotiate lower rates with
utilities, but these estimates serve as an upper bound of cost and help
understand the volume of energy a building is used by comparing it to
your own energy bills! See our
Chicago Gas & Electric Costs Source
for the original statistics.
Data Source:
Chicago Energy Benchmarking Data