The Ardus
Multifamily Housing in Chicago, IL · 676 N Lasalle Dr · 60654
At a glance
The Ardus is a 137,230-square-foot multifamily housing building at 676 N Lasalle Dr in Chicago, Illinois, built in 2018. In its 2023 Chicago benchmarking disclosure it reported an ENERGY STAR score of 50 out of 100 (grade D), a site energy-use intensity of 62.4 kBtu/ft² and 845 tCO₂e of greenhouse-gas emissions. That score is higher than 32% of the 1,472 scored multifamily housing buildings in Chicago.
Building Energy Use Benchmarking Ordinance · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 50 (band D) |
| Site EUI | 62.4 kBtu/ft² |
| Source EUI | 122.8 kBtu/ft² |
| GHG emissions | 845 tCO₂e |
| GHG intensity | 6.2 kgCO₂e/ft² |
| Electricity | 1,316,312 kWh |
| Natural gas | 40,741 therms |
| Gross floor area | 137,230 sq ft |
| Source record | chicago:173683:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 50 | -13 | 62.4 kBtu/ft² | 845 tCO₂e |
| 2022 | 63 | 63.6 kBtu/ft² | 821 tCO₂e | |
| 2021 | — | — | — | |
| 2020 | — | — | — | |
| 2019 | — | — | — | |
| 2018 | — | — | — |
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.
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Location
- Address
- 676 N Lasalle Dr
- City
- Chicago
- State
- Illinois
- ZIP
- 60654
- Coordinates
- 41.90331, -87.62742
Within ~1 km
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See also: most efficient in Chicago · biggest emitters
How does The Ardus compare with other multifamily housing buildings in Chicago?
The latest disclosures cover 1,515 multifamily housing buildings in Chicago, out of 3,852 buildings citywide. The Ardus's ENERGY STAR score of 50 compares with an average of 62 across the 1,472 that report a score; it scores higher than 32% of them and lower than 67%. Its site EUI of 62.4 kBtu/ft² is about 13% below the average of 72.0 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 roughly in line with the group average of 5.8 kgCO₂e/ft².
At 137,230 sq ft, it is about 33% below the average floor area of 206,097 sq ft for those buildings. It was built in 2018, 47 years later than the group's average year built (1971). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has The Ardus's energy performance changed over time?
BuildingCensus holds 6 Chicago disclosures for The Ardus, covering report years 2018–2023. Its ENERGY STAR score went from 63 in 2022 to 50 in 2023 (-13 points); its best year on file was 2022, at 63. Site EUI moved from 63.6 kBtu/ft² (2022) to 62.4 kBtu/ft² (2023), a 2% decrease. Reported emissions went from 821 tCO₂e to 845 tCO₂e over the same span (up 3%).
What does an ENERGY STAR score of 50 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 50 means the building performs better than about 50% of its national peers. BuildingCensus bands the score into report-card grades; 50 falls in band D — lowest band (1–54). It sits 25 points below 75, the threshold for ENERGY STAR certification. 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. The Ardus's 62.4 kBtu/ft² across 137,230 sq ft works out to about 8.6 billion Btu (2,510 MWh-equivalent) in 2023. Its source EUI of 122.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,316,312 kWh of electricity and 40,741 therms of natural gas for the year.
Which law requires The Ardus to report its energy use?
The Ardus 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:173683:2023). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.
More multifamily housing buildings in Chicago
- 4537 S DREXEL BLVD· 137,130 sq ft · score 100 (A)
- Alpha Tower Apartments· 136,957 sq ft · score 19 (D)
- 1242 Lake Shore Drive· 136,591 sq ft · score 48 (D)
- C(IL292) - Oakdale Towers· 136,304 sq ft · score 83 (B)
- 1143 S Plymouth Court· 136,110 sq ft · score 80 (B)
- Forty East Delaware Place Condominium Association· 136,000 sq ft · score 47 (D)
- Multifamily Housing buildings in Chicago· 1,515 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 The Ardus's energy grade?
The Ardus scores 50 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2023 Chicago disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does The Ardus use?
Its 2023 site energy-use intensity was 62.4 kBtu/ft² (122.8 kBtu/ft² source) across 137,230 sq ft, including 1,316,312 kWh of electricity and 40,741 therms of natural gas.
What are The Ardus's carbon emissions?
The Ardus reported 845 tCO₂e of greenhouse-gas emissions (6.2 kgCO₂e/ft²) for 2023.
Where is The Ardus?
The Ardus is at 676 N Lasalle Dr, in Chicago, Illinois 60654. Its coordinates are 41.90331, -87.62742 (latitude, longitude), as published in the Chicago Energy Benchmarking file.
How big is The Ardus and when was it built?
The Ardus has 137,230 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 2018 as its year built. It is classed as multifamily housing.
Is The Ardus 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, “The Ardus, Chicago, Illinois — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/chicago/the-ardus-6f533b98 (data as of October 2, 2026).