Onni Grand LP

How does Onni Grand LP 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. Onni Grand LP's ENERGY STAR score of 42 compares with an average of 62 across the 1,472 that report a score; it scores higher than 23% of them and lower than 76%. Its site EUI of 67.2 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 6.7 kgCO₂e/ft² is about 16% above the group average of 5.8 kgCO₂e/ft².

At 420,641 sq ft, it is about twice the average floor area of 206,097 sq ft for those buildings. It was built in 2021, 50 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 Onni Grand LP's energy performance changed over time?

BuildingCensus holds 2 Chicago disclosures for Onni Grand LP, covering report years 2022–2023. Its ENERGY STAR score went from 46 in 2022 to 42 in 2023 (-4 points); its best year on file was 2022, at 46. Site EUI moved from 72.8 kBtu/ft² (2022) to 67.2 kBtu/ft² (2023), a 8% decrease. Reported emissions went from 2,872 tCO₂e to 2,802 tCO₂e over the same span (down 2%).

What does an ENERGY STAR score of 42 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 42 means the building performs better than about 42% of its national peers. BuildingCensus bands the score into report-card grades; 42 falls in band D — lowest band (1–54). It sits 33 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. Onni Grand LP's 67.2 kBtu/ft² across 420,641 sq ft works out to about 28.3 billion Btu (8,284 MWh-equivalent) in 2023. Its source EUI of 132.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 4,395,276 kWh of electricity and 132,514 therms of natural gas for the year.

Which law requires Onni Grand LP to report its energy use?

Onni Grand LP 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:256883:2023). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.