BuildingCensus
D

340 on the Park

Multifamily Housing in Chicago, IL · 340 East Randolph Street · 60601

At a glance

340 on the Park is a 801,566-square-foot multifamily housing building at 340 East Randolph Street in Chicago, Illinois, built in 2007. In its 2023 Chicago benchmarking disclosure it reported an ENERGY STAR score of 25 out of 100 (grade D), a site energy-use intensity of 58.2 kBtu/ft² and 5,777 tCO₂e of greenhouse-gas emissions. That score is higher than 12% of the 1,472 scored multifamily housing buildings in Chicago.

ENERGY STAR score
25
band D · 2023
Site EUI
58.2
kBtu/ft²
GHG emissions
5,777
tCO₂e
GHG intensity
7.2
kgCO₂e/ft²
Floor area
801,566
sq ft
Year built
2007
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 score25 (band D)
Site EUI58.2 kBtu/ft²
Source EUI144.1 kBtu/ft²
GHG emissions5,777 tCO₂e
GHG intensity7.2 kgCO₂e/ft²
Electricity11,133,745 kWh
Natural gas86,950 therms
Gross floor area801,566 sq ft
Source recordchicago:241767:2023

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2023latest25-358.2 kBtu/ft²5,777 tCO₂e
202228-762.3 kBtu/ft²5,817 tCO₂e
202135+857.6 kBtu/ft²5,744 tCO₂e
202027+161.0 kBtu/ft²6,544 tCO₂e
201926-260.8 kBtu/ft²—
201828+1161.9 kBtu/ft²7,246 tCO₂e
201717-161.3 kBtu/ft²7,672 tCO₂e
201618+671.1 kBtu/ft²—
20151278.7 kBtu/ft²—

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
340 East Randolph Street
State
Illinois
ZIP
60601
Coordinates
41.93299, -87.64079

Within ~1 km

Nearby benchmarked buildings

See also: most efficient in Chicago · biggest emitters

How does 340 on the Park 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. 340 on the Park's ENERGY STAR score of 25 compares with an average of 62 across the 1,472 that report a score; it scores higher than 12% of them and lower than 88%. Its site EUI of 58.2 kBtu/ft² is about 19% 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 7.2 kgCO₂e/ft² is about 24% above the group average of 5.8 kgCO₂e/ft².

At 801,566 sq ft, it is about 289% above the average floor area of 206,097 sq ft for those buildings. It was built in 2007, 36 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 340 on the Park's energy performance changed over time?

BuildingCensus holds 9 Chicago disclosures for 340 on the Park, covering report years 2015–2023. Its ENERGY STAR score went from 12 in 2015 to 25 in 2023 (+13 points); its best year on file was 2021, at 35. Site EUI moved from 78.7 kBtu/ft² (2015) to 58.2 kBtu/ft² (2023), a 26% decrease. Reported emissions went from 7,672 tCO₂e to 5,777 tCO₂e over the same span (down 25%).

What does an ENERGY STAR score of 25 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 25 means the building performs better than about 25% of its national peers. BuildingCensus bands the score into report-card grades; 25 falls in band D — lowest band (1–54). It sits 50 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. 340 on the Park's 58.2 kBtu/ft² across 801,566 sq ft works out to about 46.7 billion Btu (13,672 MWh-equivalent) in 2023. Its source EUI of 144.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 11,133,745 kWh of electricity and 86,950 therms of natural gas for the year.

Which law requires 340 on the Park to report its energy use?

340 on the Park 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:241767:2023). 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 340 on the Park's energy grade?

340 on the Park scores 25 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 340 on the Park use?

Its 2023 site energy-use intensity was 58.2 kBtu/ft² (144.1 kBtu/ft² source) across 801,566 sq ft, including 11,133,745 kWh of electricity and 86,950 therms of natural gas.

What are 340 on the Park's carbon emissions?

340 on the Park reported 5,777 tCO₂e of greenhouse-gas emissions (7.2 kgCO₂e/ft²) for 2023.

Where is 340 on the Park?

340 on the Park is at 340 East Randolph Street, in Chicago, Illinois 60601. Its coordinates are 41.93299, -87.64079 (latitude, longitude), as published in the Chicago Energy Benchmarking file.

How big is 340 on the Park and when was it built?

340 on the Park has 801,566 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 2007 as its year built. It is classed as multifamily housing.

Is 340 on the Park 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, “340 on the Park, Chicago, Illinois — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/chicago/340-on-the-park-31e9dbd3 (data as of October 2, 2026).