Two East Oak Condominium Association (tw206)

How does Two East Oak Condominium Association (tw206) 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. Two East Oak Condominium Association (tw206)'s ENERGY STAR score of 31 compares with an average of 62 across the 1,472 that report a score; it scores higher than 15% of them and lower than 84%. Its site EUI of 95.0 kBtu/ft² is about 32% 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 7.6 kgCO₂e/ft² is about 31% above the group average of 5.8 kgCO₂e/ft².

At 253,772 sq ft, it is about 23% above the average floor area of 206,097 sq ft for those buildings. Its 1971 construction date is close to 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 Two East Oak Condominium Association (tw206)'s energy performance changed over time?

BuildingCensus holds 9 Chicago disclosures for Two East Oak Condominium Association (tw206), covering report years 2015–2023. Its ENERGY STAR score went from 24 in 2015 to 31 in 2023 (+7 points); its best year on file was 2022, at 82. Site EUI moved from 101.0 kBtu/ft² (2015) to 95.0 kBtu/ft² (2023), a 6% decrease. Reported emissions went from 2,612 tCO₂e to 1,931 tCO₂e over the same span (down 26%).

What does an ENERGY STAR score of 31 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 31 means the building performs better than about 31% of its national peers. BuildingCensus bands the score into report-card grades; 31 falls in band D — lowest band (1–54). It sits 44 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. Two East Oak Condominium Association (tw206)'s 95.0 kBtu/ft² across 253,772 sq ft works out to about 24.1 billion Btu (7,065 MWh-equivalent) in 2023. Its source EUI of 151.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,194,663 kWh of electricity, 166,304 therms of natural gas and 9,160 thousand gallons of water for the year.

Which law requires Two East Oak Condominium Association (tw206) to report its energy use?

Two East Oak Condominium Association (tw206) 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:242172:2023). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.