3430-40 N Lake Shore

How does 3430-40 N Lake Shore 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. 3430-40 N Lake Shore's ENERGY STAR score of 61 compares with an average of 62 across the 1,472 that report a score; it scores higher than 44% of them and lower than 55%. Its site EUI of 70.3 kBtu/ft² is roughly in line with 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 5.0 kgCO₂e/ft² is about 14% below the group average of 5.8 kgCO₂e/ft².

At 363,424 sq ft, it is about 76% above the average floor area of 206,097 sq ft for those buildings. It was built in 1955, 16 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 3430-40 N Lake Shore's energy performance changed over time?

BuildingCensus holds 9 Chicago disclosures for 3430-40 N Lake Shore, covering report years 2015–2023. Its ENERGY STAR score went from 100 in 2015 to 61 in 2023 (-39 points); its best year on file was 2015, at 100. Site EUI moved from 19.2 kBtu/ft² (2015) to 70.3 kBtu/ft² (2023), an 266% increase. Reported emissions went from 1,180 tCO₂e to 1,808 tCO₂e over the same span (up 53%).

What does an ENERGY STAR score of 61 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 61 means the building performs better than about 61% of its national peers. BuildingCensus bands the score into report-card grades; 61 falls in band C — below median (55–69). It sits 14 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. 3430-40 N Lake Shore's 70.3 kBtu/ft² across 363,424 sq ft works out to about 25.5 billion Btu (7,488 MWh-equivalent) in 2023. Its source EUI of 98.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,519,855 kWh of electricity and 203,688 therms of natural gas for the year.

Which law requires 3430-40 N Lake Shore to report its energy use?

3430-40 N Lake Shore 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:230281:2023). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.