508 West Diversey Parkway

How does 508 West Diversey Parkway 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. 508 West Diversey Parkway's ENERGY STAR score of 93 compares with an average of 62 across the 1,472 that report a score; it scores higher than 85% of them and lower than 13%. Its site EUI of 48.7 kBtu/ft² is about 32% 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 4.0 kgCO₂e/ft² is about 31% below the group average of 5.8 kgCO₂e/ft².

At 98,000 sq ft, it is about half of the average floor area of 206,097 sq ft for those buildings. It was built in 2019, 48 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 508 West Diversey Parkway's energy performance changed over time?

BuildingCensus holds 5 Chicago disclosures for 508 West Diversey Parkway, covering report years 2019–2023. Its ENERGY STAR score went from 87 in 2019 to 93 in 2023 (+6 points); its best year on file was 2022, at 97. Site EUI moved from 61.8 kBtu/ft² (2019) to 48.7 kBtu/ft² (2023), a 21% decrease. Reported emissions went from 381 tCO₂e to 389 tCO₂e over the same span (up 2%).

What does an ENERGY STAR score of 93 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 93 means the building performs better than about 93% of its national peers. BuildingCensus bands the score into report-card grades; 93 falls in band A — high performer (85–100). 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. 508 West Diversey Parkway's 48.7 kBtu/ft² across 98,000 sq ft works out to about 4.8 billion Btu (1,399 MWh-equivalent) in 2023. Its source EUI of 78.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 455,229 kWh of electricity, 32,227 therms of natural gas and 1,501,292 thousand gallons of water for the year.

Which law requires 508 West Diversey Parkway to report its energy use?

508 West Diversey Parkway 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:256541:2023). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.