The Elle (lz28)

How does The Elle (lz28) 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. The Elle (lz28)'s ENERGY STAR score of 74 compares with an average of 62 across the 1,472 that report a score; it scores higher than 59% of them and lower than 40%. Its site EUI of 50.5 kBtu/ft² is about 30% 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 4.6 kgCO₂e/ft² is about 21% below the group average of 5.8 kgCO₂e/ft².

At 633,386 sq ft, it is about 207% above the average floor area of 206,097 sq ft for those buildings. It was built in 2017, 46 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 The Elle (lz28)'s energy performance changed over time?

BuildingCensus holds 6 Chicago disclosures for The Elle (lz28), covering report years 2018–2023. Its ENERGY STAR score went from 99 in 2018 to 74 in 2023 (-25 points); its best year on file was 2018, at 99. Site EUI moved from 23.4 kBtu/ft² (2018) to 50.5 kBtu/ft² (2023), an 116% increase. Reported emissions went from 2,404 tCO₂e to 2,942 tCO₂e over the same span (up 22%).

What does an ENERGY STAR score of 74 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 74 means the building performs better than about 74% of its national peers. BuildingCensus bands the score into report-card grades; 74 falls in band B — above median (70–84). It sits 1 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. The Elle (lz28)'s 50.5 kBtu/ft² across 633,386 sq ft works out to about 32 billion Btu (9,374 MWh-equivalent) in 2023. Its source EUI of 92.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 4,193,681 kWh of electricity, 177,020 therms of natural gas and 15,862 thousand gallons of water for the year.

Which law requires The Elle (lz28) to report its energy use?

The Elle (lz28) 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:255165:2023). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.