555 Cornelia (251219)

How does 555 Cornelia (251219) 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. 555 Cornelia (251219)'s ENERGY STAR score of 95 compares with an average of 62 across the 1,472 that report a score; it scores higher than 88% of them and lower than 10%. Its site EUI of 66.7 kBtu/ft² is roughly in line with 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 4.1 kgCO₂e/ft² is about 29% below the group average of 5.8 kgCO₂e/ft².

At 220,800 sq ft, it is roughly in line with the average floor area of 206,097 sq ft for those buildings. It was built in 1961, 10 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 555 Cornelia (251219)'s energy performance changed over time?

BuildingCensus holds 8 Chicago disclosures for 555 Cornelia (251219), covering report years 2016–2023. Its ENERGY STAR score went from 54 in 2016 to 95 in 2023 (+41 points); its best year on file was 2021, at 96. Site EUI moved from 90.8 kBtu/ft² (2016) to 66.7 kBtu/ft² (2023), a 27% decrease. Reported emissions went from 1,694 tCO₂e to 913 tCO₂e over the same span (down 46%).

What does an ENERGY STAR score of 95 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 95 means the building performs better than about 95% of its national peers. BuildingCensus bands the score into report-card grades; 95 falls in band A — high performer (85–100). 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. 555 Cornelia (251219)'s 66.7 kBtu/ft² across 220,800 sq ft works out to about 14.7 billion Btu (4,316 MWh-equivalent) in 2023. Its source EUI of 82.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 441,213 kWh of electricity and 132,246 therms of natural gas for the year.

Which law requires 555 Cornelia (251219) to report its energy use?

555 Cornelia (251219) 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:251219:2023). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.