At a glance
Old Republic Building is a 219,636-square-foot office building at 301 317 N. Michigan Ave. in Chicago, Illinois, built in 1925. In its 2023 Chicago benchmarking disclosure it reported an ENERGY STAR score of 77 out of 100 (grade B), a site energy-use intensity of 70.0 kBtu/ft² and 1,372 tCO₂e of greenhouse-gas emissions. That score is higher than 57% of the 320 scored office buildings in Chicago.
Building Energy Use Benchmarking Ordinance · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 77 (band B) |
| Site EUI | 70.0 kBtu/ft² |
| Source EUI | 124.5 kBtu/ft² |
| GHG emissions | 1,372 tCO₂e |
| GHG intensity | 6.2 kgCO₂e/ft² |
| Electricity | 1,873,782 kWh |
| Natural gas | 89,861 therms |
| Water use | 4,206 kgal |
| Gross floor area | 219,636 sq ft |
| Source record | chicago:158414:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 77 | +5 | 70.0 kBtu/ft² | 1,372 tCO₂e |
| 2022 | 72 | -1 | 81.3 kBtu/ft² | 1,481 tCO₂e |
| 2021 | 73 | -2 | 78.6 kBtu/ft² | 1,514 tCO₂e |
| 2020 | 75 | +10 | 73.6 kBtu/ft² | 1,545 tCO₂e |
| 2019 | 65 | +10 | 86.8 kBtu/ft² | — |
| 2018 | 55 | -29 | 86.3 kBtu/ft² | 1,964 tCO₂e |
| 2017 | 84 | +1 | 75.7 kBtu/ft² | 1,977 tCO₂e |
| 2016 | 83 | +2 | 77.4 kBtu/ft² | 2,043 tCO₂e |
| 2015 | 81 | 79.8 kBtu/ft² | 2,214 tCO₂e |
Compliance context
Building Energy Use Benchmarking Ordinance
Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 301 317 N. Michigan Ave.
- City
- Chicago
- State
- Illinois
- ZIP
- 60601
- Coordinates
- 41.88938, -87.76504
Within ~1 km
Nearby benchmarked buildings
- One South Wackerscore 82
Office · 1,387,952 sq ft
Multifamily Housing · 862,821 sq ft
Multifamily Housing · 613,400 sq ft
- 22 West Washingtonscore 82
Office · 471,436 sq ft
- AMLI 808score 55
Multifamily Housing · 241,835 sq ft
- 1110 N Lake Shore Dr (252094)score 17
Multifamily Housing · 208,489 sq ft
See also: most efficient in Chicago · biggest emitters
How does Old Republic Building compare with other office buildings in Chicago?
The latest disclosures cover 387 office buildings in Chicago, out of 3,852 buildings citywide. Old Republic Building's ENERGY STAR score of 77 compares with an average of 69 across the 320 that report a score; it scores higher than 57% of them and lower than 40%. Its site EUI of 70.0 kBtu/ft² is roughly in line with the average of 70.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 6.2 kgCO₂e/ft² is about 17% below the group average of 7.5 kgCO₂e/ft².
At 219,636 sq ft, it is about 55% below the average floor area of 488,124 sq ft for those buildings. It was built in 1925, 31 years earlier than the group's average year built (1957). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has Old Republic Building's energy performance changed over time?
BuildingCensus holds 9 Chicago disclosures for Old Republic Building, covering report years 2015–2023. Its ENERGY STAR score went from 81 in 2015 to 77 in 2023 (-4 points); its best year on file was 2017, at 84. Site EUI moved from 79.8 kBtu/ft² (2015) to 70.0 kBtu/ft² (2023), a 12% decrease. Reported emissions went from 2,214 tCO₂e to 1,372 tCO₂e over the same span (down 38%).
What does an ENERGY STAR score of 77 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 77 means the building performs better than about 77% of its national peers. BuildingCensus bands the score into report-card grades; 77 falls in band B — above median (70–84). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. In Chicago, 35% of scored buildings are at 75 or above.
Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. Old Republic Building's 70.0 kBtu/ft² across 219,636 sq ft works out to about 15.4 billion Btu (4,506 MWh-equivalent) in 2023. Its source EUI of 124.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,873,782 kWh of electricity, 89,861 therms of natural gas and 4,206 thousand gallons of water for the year.
Which law requires Old Republic Building to report its energy use?
Old Republic Building reports under the Building Energy Use Benchmarking Ordinance, the legal basis of the Chicago Energy Benchmarking program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2023 disclosure (source record chicago:158414:2023). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.
More office buildings in Chicago
- Lewis Towers-ID# 174182· 216,081 sq ft · score 77 (B)
- 645 North Michigan· 215,871 sq ft · score 51 (D)
- 1515 W Webster, LLC· 215,778 sq ft · score 83 (B)
- 20 North Michigan Avenue· 214,800 sq ft · score 70 (B)
- WGN Studios· 213,533 sq ft · score 1 (D)
- U.S. Cellular Plaza - 8420 _ Goby LLC· 212,651 sq ft · score 100 (A)
- Office buildings in Chicago· 387 benchmarked
- All Chicago benchmarked buildings· Building Energy Use Benchmarking Ordinance
- Most efficient large buildings in Chicago
- Least efficient large buildings in Chicago
- Biggest emitters in Chicago
Frequently asked questions
What is Old Republic Building's energy grade?
Old Republic Building scores 77 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2023 Chicago disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Old Republic Building use?
Its 2023 site energy-use intensity was 70.0 kBtu/ft² (124.5 kBtu/ft² source) across 219,636 sq ft, including 1,873,782 kWh of electricity and 89,861 therms of natural gas.
What are Old Republic Building's carbon emissions?
Old Republic Building reported 1,372 tCO₂e of greenhouse-gas emissions (6.2 kgCO₂e/ft²) for 2023.
Where is Old Republic Building?
Old Republic Building is at 301 317 N. Michigan Ave., in Chicago, Illinois 60601. Its coordinates are 41.88938, -87.76504 (latitude, longitude), as published in the Chicago Energy Benchmarking file.
How big is Old Republic Building and when was it built?
Old Republic Building has 219,636 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1925 as its year built. It is classed as office.
Is Old Republic Building covered by the Building Energy Use Benchmarking Ordinance?
Yes — it appears in the 2023 Chicago Energy Benchmarking disclosure, which lists the buildings reporting under the Building Energy Use Benchmarking Ordinance.
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About this data
Source: Chicago Energy Benchmarking (Building Energy Use Benchmarking Ordinance), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “Old Republic Building, Chicago, Illinois — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/chicago/old-republic-building-4891f03e (data as of October 2, 2026).