Jeffery Towers

How does Jeffery Towers 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. Jeffery Towers'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 102.2 kBtu/ft² is about 42% 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 6.3 kgCO₂e/ft² is roughly in line with the group average of 5.8 kgCO₂e/ft².

At 125,000 sq ft, it is about 39% below the average floor area of 206,097 sq ft for those buildings. It was built in 1925, 46 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 Jeffery Towers's energy performance changed over time?

BuildingCensus holds 8 Chicago disclosures for Jeffery Towers, covering report years 2016–2023. Its ENERGY STAR score went from 80 in 2016 to 42 in 2023 (-38 points); its best year on file was 2016, at 80. Site EUI moved from 83.9 kBtu/ft² (2016) to 102.2 kBtu/ft² (2023), an 22% increase. Reported emissions went from 719 tCO₂e to 787 tCO₂e over the same span (up 10%).

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. Jeffery Towers's 102.2 kBtu/ft² across 125,000 sq ft works out to about 12.8 billion Btu (3,744 MWh-equivalent) in 2023. Its source EUI of 124.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 367,378 kWh of electricity and 115,222 therms of natural gas for the year.

Which law requires Jeffery Towers to report its energy use?

Jeffery Towers 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:105987:2023). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.