The Tides at Lakeshore East (td016)

How does The Tides at Lakeshore East (td016) 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. The Tides at Lakeshore East (td016)'s ENERGY STAR score of 49 compares with an average of 62 across the 1,472 that report a score; it scores higher than 31% of them and lower than 68%. Its site EUI of 83.5 kBtu/ft² is about 16% 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 6.9 kgCO₂e/ft² is about 19% above the group average of 5.8 kgCO₂e/ft².

At 484,482 sq ft, it is about 135% above the average floor area of 206,097 sq ft for those buildings. It was built in 2008, 37 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 The Tides at Lakeshore East (td016)'s energy performance changed over time?

BuildingCensus holds 9 Chicago disclosures for The Tides at Lakeshore East (td016), covering report years 2015–2023. Its ENERGY STAR score went from 71 in 2015 to 49 in 2023 (-22 points); its best year on file was 2016, at 77. Site EUI moved from 58.7 kBtu/ft² (2015) to 83.5 kBtu/ft² (2023), an 42% increase. Reported emissions went from 4,723 tCO₂e to 3,324 tCO₂e over the same span (down 30%).

What does an ENERGY STAR score of 49 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 49 means the building performs better than about 49% of its national peers. BuildingCensus bands the score into report-card grades; 49 falls in band D — lowest band (1–54). It sits 26 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. The Tides at Lakeshore East (td016)'s 83.5 kBtu/ft² across 484,482 sq ft works out to about 40.5 billion Btu (11,856 MWh-equivalent) in 2023. Its source EUI of 136.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 3,970,079 kWh of electricity, 268,951 therms of natural gas and 23,987 thousand gallons of water for the year.

Which law requires The Tides at Lakeshore East (td016) to report its energy use?

The Tides at Lakeshore East (td016) 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:160304:2023). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.