2336 N Commonwealth Condominium Association

How does 2336 N Commonwealth Condominium Association 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. 2336 N Commonwealth Condominium Association's ENERGY STAR score of 79 compares with an average of 62 across the 1,472 that report a score; it scores higher than 65% of them and lower than 34%. Its site EUI of 73.7 kBtu/ft² is roughly in line with the average of 72.0 kBtu/ft². Its emissions intensity of 5.0 kgCO₂e/ft² is about 14% below the group average of 5.8 kgCO₂e/ft².

At 50,000 sq ft, it is about 76% below the average floor area of 206,097 sq ft for those buildings. Its 1968 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 2336 N Commonwealth Condominium Association's energy performance changed over time?

BuildingCensus holds 8 Chicago disclosures for 2336 N Commonwealth Condominium Association, covering report years 2016–2023. Its ENERGY STAR score went from 40 in 2016 to 79 in 2023 (+39 points); its best year on file was 2020, at 99. Site EUI moved from 71.4 kBtu/ft² (2016) to 73.7 kBtu/ft² (2023), an 3% increase. Reported emissions went from 370 tCO₂e to 251 tCO₂e over the same span (down 32%).

What does an ENERGY STAR score of 79 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 79 means the building performs better than about 79% of its national peers. BuildingCensus bands the score into report-card grades; 79 falls in band B — above median (70–84). 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. 2336 N Commonwealth Condominium Association's 73.7 kBtu/ft² across 50,000 sq ft works out to about 3.7 billion Btu (1,080 MWh-equivalent) in 2023. Its source EUI of 99.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 185,380 kWh of electricity and 30,511 therms of natural gas for the year.

Which law requires 2336 N Commonwealth Condominium Association to report its energy use?

2336 N Commonwealth Condominium Association 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:173733:2023). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.