BuildingCensus
B

EFA LLC

Multifamily Housing in Chicago, IL · 452 Aldine Ave · 60657

At a glance

EFA LLC is a 89,000-square-foot multifamily housing building at 452 Aldine Ave in Chicago, Illinois, built in 1966. In its 2023 Chicago benchmarking disclosure it reported an ENERGY STAR score of 82 out of 100 (grade B), a site energy-use intensity of 63.8 kBtu/ft² and 404 tCO₂e of greenhouse-gas emissions. That score is higher than 69% of the 1,472 scored multifamily housing buildings in Chicago.

ENERGY STAR score
82
band B · 2023
Site EUI
63.8
kBtu/ft²
GHG emissions
404
tCO₂e
GHG intensity
4.5
kgCO₂e/ft²
Floor area
89,000
sq ft
Year built
1966
vintage
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85–10070–8455–691–54
This entry + 6 nearby

Building Energy Use Benchmarking Ordinance · reporting year 2023

Benchmarking record

FieldValue
ENERGY STAR score82 (band B)
Site EUI63.8 kBtu/ft²
Source EUI90.1 kBtu/ft²
GHG emissions404 tCO₂e
GHG intensity4.5 kgCO₂e/ft²
Electricity344,105 kWh
Natural gas45,043 therms
Gross floor area89,000 sq ft
Source recordchicago:104288:2023

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2023latest82-163.8 kBtu/ft²404 tCO₂e
202283+171.1 kBtu/ft²432 tCO₂e
202182+467.7 kBtu/ft²434 tCO₂e
202078-270.6 kBtu/ft²464 tCO₂e
201980±073.0 kBtu/ft²480 tCO₂e
201880+273.8 kBtu/ft²491 tCO₂e
201778-572.2 kBtu/ft²503 tCO₂e
20168370.1 kBtu/ft²500 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.

Program details →

Ownership

No owning organisation shown. Names of private individuals in the disclosure are not published here.

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Location

Address
452 Aldine Ave
State
Illinois
ZIP
60657
Coordinates
41.94936, -87.69093

Within ~1 km

Nearby benchmarked buildings

See also: most efficient in Chicago · biggest emitters

How does EFA LLC 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. EFA LLC's ENERGY STAR score of 82 compares with an average of 62 across the 1,472 that report a score; it scores higher than 69% of them and lower than 30%. Its site EUI of 63.8 kBtu/ft² is about 11% 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 4.5 kgCO₂e/ft² is about 22% below the group average of 5.8 kgCO₂e/ft².

At 89,000 sq ft, it is about 57% below the average floor area of 206,097 sq ft for those buildings. It was built in 1966, 5 years earlier 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 EFA LLC's energy performance changed over time?

BuildingCensus holds 8 Chicago disclosures for EFA LLC, covering report years 2016–2023. Its ENERGY STAR score went from 83 in 2016 to 82 in 2023 (-1 points); its best year on file was 2016, at 83. Site EUI moved from 70.1 kBtu/ft² (2016) to 63.8 kBtu/ft² (2023), a 9% decrease. Reported emissions went from 500 tCO₂e to 404 tCO₂e over the same span (down 19%).

What does an ENERGY STAR score of 82 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 82 means the building performs better than about 82% of its national peers. BuildingCensus bands the score into report-card grades; 82 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. EFA LLC's 63.8 kBtu/ft² across 89,000 sq ft works out to about 5.7 billion Btu (1,664 MWh-equivalent) in 2023. Its source EUI of 90.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 344,105 kWh of electricity and 45,043 therms of natural gas for the year.

Which law requires EFA LLC to report its energy use?

EFA LLC 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:104288:2023). 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

Frequently asked questions

What is EFA LLC's energy grade?

EFA LLC scores 82 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 EFA LLC use?

Its 2023 site energy-use intensity was 63.8 kBtu/ft² (90.1 kBtu/ft² source) across 89,000 sq ft, including 344,105 kWh of electricity and 45,043 therms of natural gas.

What are EFA LLC's carbon emissions?

EFA LLC reported 404 tCO₂e of greenhouse-gas emissions (4.5 kgCO₂e/ft²) for 2023.

Where is EFA LLC?

EFA LLC is at 452 Aldine Ave, in Chicago, Illinois 60657. Its coordinates are 41.94936, -87.69093 (latitude, longitude), as published in the Chicago Energy Benchmarking file.

How big is EFA LLC and when was it built?

EFA LLC has 89,000 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1966 as its year built. It is classed as multifamily housing.

Is EFA LLC 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, “EFA LLC, Chicago, Illinois — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/chicago/efa-llc-53ec18e0 (data as of October 2, 2026).