At a glance
AJ1034 - Chicago Marriott @ Medical District/UIC is a 72,000-square-foot hotel at 625 S. Ashland Avenue in Chicago, Illinois, built in 2000. In its 2023 Chicago benchmarking disclosure it reported an ENERGY STAR score of 23 out of 100 (grade D), a site energy-use intensity of 145.6 kBtu/ft² and 950 tCO₂e of greenhouse-gas emissions. That score is higher than 18% of the 77 scored hotel buildings in Chicago.
Building Energy Use Benchmarking Ordinance · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 23 (band D) |
| Site EUI | 145.6 kBtu/ft² |
| Source EUI | 262.9 kBtu/ft² |
| GHG emissions | 950 tCO₂e |
| GHG intensity | 13.2 kgCO₂e/ft² |
| Electricity | 1,327,115 kWh |
| Natural gas | 59,537 therms |
| Water use | 7,309 kgal |
| Gross floor area | 72,000 sq ft |
| Source record | chicago:251340:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 23 | -4 | 145.6 kBtu/ft² | 950 tCO₂e |
| 2022 | 27 | +3 | 144.8 kBtu/ft² | 904 tCO₂e |
| 2021 | 24 | -12 | 141.3 kBtu/ft² | 965 tCO₂e |
| 2020 | 36 | +16 | 108.4 kBtu/ft² | 952 tCO₂e |
| 2019 | 20 | -2 | 162.5 kBtu/ft² | 1,139 tCO₂e |
| 2018 | 22 | +11 | 170.9 kBtu/ft² | 1,295 tCO₂e |
| 2017 | 11 | -6 | 196.0 kBtu/ft² | 1,661 tCO₂e |
| 2016 | 17 | 184.1 kBtu/ft² | 1,520 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.
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Location
- Address
- 625 S. Ashland Avenue
- City
- Chicago
- State
- Illinois
- ZIP
- 60607
- Coordinates
- 41.86401, -87.64368
Within ~1 km
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- Monroe Aberdeen Place (mn147)score 94
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See also: most efficient in Chicago · biggest emitters
How does AJ1034 - Chicago Marriott @ Medical District/UIC compare with other hotel buildings in Chicago?
The latest disclosures cover 88 hotel buildings in Chicago, out of 3,852 buildings citywide. AJ1034 - Chicago Marriott @ Medical District/UIC's ENERGY STAR score of 23 compares with an average of 51 across the 77 that report a score; it scores higher than 18% of them and lower than 81%. Its site EUI of 145.6 kBtu/ft² is about 32% above the average of 110.1 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 13.2 kgCO₂e/ft² is about 31% above the group average of 10.1 kgCO₂e/ft².
At 72,000 sq ft, it is about 79% below the average floor area of 343,808 sq ft for those buildings. It was built in 2000, 21 years later than the group's average year built (1979). Across all 24 jurisdictions BuildingCensus covers, the 3,812 hotel buildings average an ENERGY STAR score of 65 and a site EUI of 77.8 kBtu/ft².
How has AJ1034 - Chicago Marriott @ Medical District/UIC's energy performance changed over time?
BuildingCensus holds 8 Chicago disclosures for AJ1034 - Chicago Marriott @ Medical District/UIC, covering report years 2016–2023. Its ENERGY STAR score went from 17 in 2016 to 23 in 2023 (+6 points); its best year on file was 2020, at 36. Site EUI moved from 184.1 kBtu/ft² (2016) to 145.6 kBtu/ft² (2023), a 21% decrease. Reported emissions went from 1,520 tCO₂e to 950 tCO₂e over the same span (down 38%).
What does an ENERGY STAR score of 23 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 23 means the building performs better than about 23% of its national peers. BuildingCensus bands the score into report-card grades; 23 falls in band D — lowest band (1–54). It sits 52 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. AJ1034 - Chicago Marriott @ Medical District/UIC's 145.6 kBtu/ft² across 72,000 sq ft works out to about 10.5 billion Btu (3,072 MWh-equivalent) in 2023. Its source EUI of 262.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,327,115 kWh of electricity, 59,537 therms of natural gas and 7,309 thousand gallons of water for the year.
Which law requires AJ1034 - Chicago Marriott @ Medical District/UIC to report its energy use?
AJ1034 - Chicago Marriott @ Medical District/UIC 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:251340:2023). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.
More hotel buildings in Chicago
Frequently asked questions
What is AJ1034 - Chicago Marriott @ Medical District/UIC's energy grade?
AJ1034 - Chicago Marriott @ Medical District/UIC scores 23 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 AJ1034 - Chicago Marriott @ Medical District/UIC use?
Its 2023 site energy-use intensity was 145.6 kBtu/ft² (262.9 kBtu/ft² source) across 72,000 sq ft, including 1,327,115 kWh of electricity and 59,537 therms of natural gas.
What are AJ1034 - Chicago Marriott @ Medical District/UIC's carbon emissions?
AJ1034 - Chicago Marriott @ Medical District/UIC reported 950 tCO₂e of greenhouse-gas emissions (13.2 kgCO₂e/ft²) for 2023.
Where is AJ1034 - Chicago Marriott @ Medical District/UIC?
AJ1034 - Chicago Marriott @ Medical District/UIC is at 625 S. Ashland Avenue, in Chicago, Illinois 60607. Its coordinates are 41.86401, -87.64368 (latitude, longitude), as published in the Chicago Energy Benchmarking file.
How big is AJ1034 - Chicago Marriott @ Medical District/UIC and when was it built?
AJ1034 - Chicago Marriott @ Medical District/UIC has 72,000 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 2000 as its year built. It is classed as hotel.
Is AJ1034 - Chicago Marriott @ Medical District/UIC 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, “AJ1034 - Chicago Marriott @ Medical District/UIC, Chicago, Illinois — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/chicago/aj1034-chicago-marriott-medical-district-uic-14779f6f (data as of October 2, 2026).