William Castleman Apartments
Multifamily Housing in Chicago, IL · 4945 N Sheridan Rd · 60640
At a glance
William Castleman Apartments is a 149,600-square-foot multifamily housing building at 4945 N Sheridan Rd in Chicago, Illinois, built in 1967. In its 2023 Chicago benchmarking disclosure it reported an ENERGY STAR score of 39 out of 100 (grade D), a site energy-use intensity of 107.1 kBtu/ft² and 1,058 tCO₂e of greenhouse-gas emissions. That score is higher than 21% 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 | 39 (band D) |
| Site EUI | 107.1 kBtu/ft² |
| Source EUI | 140.4 kBtu/ft² |
| GHG emissions | 1,058 tCO₂e |
| GHG intensity | 7.1 kgCO₂e/ft² |
| Electricity | 698,144 kWh |
| Natural gas | 136,463 therms |
| Gross floor area | 149,600 sq ft |
| Source record | chicago:250113:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 39 | -11 | 107.1 kBtu/ft² | 1,058 tCO₂e |
| 2022 | 50 | 108.7 kBtu/ft² | 1,056 tCO₂e | |
| 2021 | — | — | — | |
| 2020 | 44 | 108.9 kBtu/ft² | 1,118 tCO₂e | |
| 2019 | — | — | — | |
| 2018 | 50 | -11 | 105.8 kBtu/ft² | 1,161 tCO₂e |
| 2017 | 61 | -4 | 90.5 kBtu/ft² | 1,089 tCO₂e |
| 2016 | 65 | 89.0 kBtu/ft² | 1,095 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 4945 N Sheridan Rd
- City
- Chicago
- State
- Illinois
- ZIP
- 60640
- Coordinates
- 41.78599, -87.59040
Within ~1 km
Nearby benchmarked buildings
- InterContinentalscore 61
Hotel · 715,161 sq ft
Multifamily Housing · 555,980 sq ft
Multifamily Housing · 291,527 sq ft
- USEF GC Century Tower LLCscore 72
Multifamily Housing · 255,605 sq ft
- Sullivan HSscore 56
K-12 School · 218,067 sq ft
- 601 Condominium Associationscore 15
Multifamily Housing · 190,893 sq ft
See also: most efficient in Chicago · biggest emitters
How does William Castleman Apartments 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. William Castleman Apartments's ENERGY STAR score of 39 compares with an average of 62 across the 1,472 that report a score; it scores higher than 21% of them and lower than 78%. Its site EUI of 107.1 kBtu/ft² is about 49% above the average of 72.0 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 7.1 kgCO₂e/ft² is about 22% above the group average of 5.8 kgCO₂e/ft².
At 149,600 sq ft, it is about 27% below the average floor area of 206,097 sq ft for those buildings. It was built in 1967, 4 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 William Castleman Apartments's energy performance changed over time?
BuildingCensus holds 8 Chicago disclosures for William Castleman Apartments, covering report years 2016–2023. Its ENERGY STAR score went from 65 in 2016 to 39 in 2023 (-26 points); its best year on file was 2016, at 65. Site EUI moved from 89.0 kBtu/ft² (2016) to 107.1 kBtu/ft² (2023), an 20% increase. Reported emissions went from 1,095 tCO₂e to 1,058 tCO₂e over the same span (down 3%).
What does an ENERGY STAR score of 39 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 39 means the building performs better than about 39% of its national peers. BuildingCensus bands the score into report-card grades; 39 falls in band D — lowest band (1–54). It sits 36 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. William Castleman Apartments's 107.1 kBtu/ft² across 149,600 sq ft works out to about 16 billion Btu (4,696 MWh-equivalent) in 2023. Its source EUI of 140.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 698,144 kWh of electricity and 136,463 therms of natural gas for the year.
Which law requires William Castleman Apartments to report its energy use?
William Castleman Apartments 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:250113:2023). 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
- Buena Pointe Condominium· 149,524 sq ft · score 29 (D)
- Park Lincoln By Reside· 149,351 sq ft · score 82 (B)
- The Ambassador Condominium Homeowners Association· 148,466 sq ft · score 54 (D)
- Blackwood· 148,157 sq ft · score 43 (D)
- Heiwa Terrace· 148,138 sq ft · score 51 (D)
- 2970 Lake Shore Condo Association· 147,700 sq ft · score 57 (C)
- 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 William Castleman Apartments's energy grade?
William Castleman Apartments scores 39 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 William Castleman Apartments use?
Its 2023 site energy-use intensity was 107.1 kBtu/ft² (140.4 kBtu/ft² source) across 149,600 sq ft, including 698,144 kWh of electricity and 136,463 therms of natural gas.
What are William Castleman Apartments's carbon emissions?
William Castleman Apartments reported 1,058 tCO₂e of greenhouse-gas emissions (7.1 kgCO₂e/ft²) for 2023.
Where is William Castleman Apartments?
William Castleman Apartments is at 4945 N Sheridan Rd, in Chicago, Illinois 60640. Its coordinates are 41.78599, -87.59040 (latitude, longitude), as published in the Chicago Energy Benchmarking file.
How big is William Castleman Apartments and when was it built?
William Castleman Apartments has 149,600 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1967 as its year built. It is classed as multifamily housing.
Is William Castleman Apartments 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, “William Castleman Apartments, Chicago, Illinois — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/chicago/william-castleman-apartments-535b4d64 (data as of October 2, 2026).