At a glance
The Loftrium is a 95,800-square-foot office building at 819 S Wabash Ave in Chicago, Illinois, built in 1912. In its 2023 Chicago benchmarking disclosure it reported an ENERGY STAR score of 58 out of 100 (grade C), a site energy-use intensity of 65.6 kBtu/ft² and 880 tCO₂e of greenhouse-gas emissions. That score is higher than 23% of the 320 scored office buildings in Chicago.
Building Energy Use Benchmarking Ordinance · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 58 (band C) |
| Site EUI | 65.6 kBtu/ft² |
| Source EUI | 183.8 kBtu/ft² |
| GHG emissions | 880 tCO₂e |
| GHG intensity | 9.2 kgCO₂e/ft² |
| Electricity | 1,843,139 kWh |
| Gross floor area | 95,800 sq ft |
| Source record | chicago:134790:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 58 | +6 | 65.6 kBtu/ft² | 880 tCO₂e |
| 2022 | 52 | +1 | 72.7 kBtu/ft² | 918 tCO₂e |
| 2021 | 51 | -8 | 73.3 kBtu/ft² | 1,004 tCO₂e |
| 2020 | 59 | +8 | 65.3 kBtu/ft² | 977 tCO₂e |
| 2019 | 51 | +12 | 74.1 kBtu/ft² | 1,181 tCO₂e |
| 2018 | 39 | -3 | 77.4 kBtu/ft² | 1,233 tCO₂e |
| 2017 | 42 | 74.7 kBtu/ft² | 1,191 tCO₂e | |
| 2016 | — | — | — |
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
- 819 S Wabash Ave
- City
- Chicago
- State
- Illinois
- ZIP
- 60605
- Coordinates
- 41.90080, -87.62427
Within ~1 km
Nearby benchmarked buildings
- Old Post Officescore 88
Office · 2,493,160 sq ft
Hospital (General Medical & Surgical) · 2,200,000 sq ft
- 350 North Orleans (Rivion LLC)score 61
Office · 1,883,966 sq ft
- 680 North Lake Shore Drivescore 87
Multifamily Housing · 1,647,872 sq ft
- 70 W Madisonscore 73
Office · 1,601,760 sq ft
- Stroger Hospital Campusscore 12
Hospital (General Medical & Surgical) · 1,596,300 sq ft
See also: most efficient in Chicago · biggest emitters
How does The Loftrium compare with other office buildings in Chicago?
The latest disclosures cover 387 office buildings in Chicago, out of 3,852 buildings citywide. The Loftrium's ENERGY STAR score of 58 compares with an average of 69 across the 320 that report a score; it scores higher than 23% of them and lower than 74%. Its site EUI of 65.6 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 9.2 kgCO₂e/ft² is about 23% above the group average of 7.5 kgCO₂e/ft².
At 95,800 sq ft, it is about 80% below the average floor area of 488,124 sq ft for those buildings. It was built in 1912, 44 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 The Loftrium's energy performance changed over time?
BuildingCensus holds 8 Chicago disclosures for The Loftrium, covering report years 2016–2023. Its ENERGY STAR score went from 42 in 2017 to 58 in 2023 (+16 points); its best year on file was 2020, at 59. Site EUI moved from 74.7 kBtu/ft² (2017) to 65.6 kBtu/ft² (2023), a 12% decrease. Reported emissions went from 1,191 tCO₂e to 880 tCO₂e over the same span (down 26%).
What does an ENERGY STAR score of 58 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 58 means the building performs better than about 58% of its national peers. BuildingCensus bands the score into report-card grades; 58 falls in band C — below median (55–69). It sits 17 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 Loftrium's 65.6 kBtu/ft² across 95,800 sq ft works out to about 6.3 billion Btu (1,842 MWh-equivalent) in 2023. Its source EUI of 183.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,843,139 kWh of electricity for the year.
Which law requires The Loftrium to report its energy use?
The Loftrium 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:134790:2023). 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
- MWRDGC Main Office Building· 95,622 sq ft · score 74 (B)
- Saint Vincent Center· 94,254 sq ft · score 62 (C)
- 311 W Superior Street· 94,000 sq ft · score 81 (B)
- Press Office Building· 93,852 sq ft · score 72 (B)
- O11970/2401 W GRACE ST/CHICAGO/IL· 93,089 sq ft · score 75 (B)
- 210-220 N Green St.· 92,741 sq ft · score 96 (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 The Loftrium's energy grade?
The Loftrium scores 58 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2023 Chicago disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does The Loftrium use?
Its 2023 site energy-use intensity was 65.6 kBtu/ft² (183.8 kBtu/ft² source) across 95,800 sq ft, including 1,843,139 kWh of electricity.
What are The Loftrium's carbon emissions?
The Loftrium reported 880 tCO₂e of greenhouse-gas emissions (9.2 kgCO₂e/ft²) for 2023.
Where is The Loftrium?
The Loftrium is at 819 S Wabash Ave, in Chicago, Illinois 60605. Its coordinates are 41.90080, -87.62427 (latitude, longitude), as published in the Chicago Energy Benchmarking file.
How big is The Loftrium and when was it built?
The Loftrium has 95,800 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1912 as its year built. It is classed as office.
Is The Loftrium 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.
Working with Chicago building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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 Loftrium, Chicago, Illinois — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/chicago/the-loftrium-e496729f (data as of October 2, 2026).