Clock Tower Lofts Condominium Association

How does Clock Tower Lofts 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. Clock Tower Lofts Condominium Association's ENERGY STAR score of 89 compares with an average of 62 across the 1,472 that report a score; it scores higher than 79% of them and lower than 19%. Its site EUI of 57.9 kBtu/ft² is about 20% 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 4.4 kgCO₂e/ft² is about 24% below the group average of 5.8 kgCO₂e/ft².

At 130,866 sq ft, it is about 37% below the average floor area of 206,097 sq ft for those buildings. It was built in 1915, 56 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 Clock Tower Lofts Condominium Association's energy performance changed over time?

BuildingCensus holds 8 Chicago disclosures for Clock Tower Lofts Condominium Association, covering report years 2016–2023. Its ENERGY STAR score went from 95 in 2016 to 89 in 2023 (-6 points); its best year on file was 2016, at 95. Site EUI moved from 46.2 kBtu/ft² (2016) to 57.9 kBtu/ft² (2023), an 25% increase. Reported emissions went from 705 tCO₂e to 578 tCO₂e over the same span (down 18%).

What does an ENERGY STAR score of 89 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 89 means the building performs better than about 89% of its national peers. BuildingCensus bands the score into report-card grades; 89 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. Clock Tower Lofts Condominium Association's 57.9 kBtu/ft² across 130,866 sq ft works out to about 7.6 billion Btu (2,221 MWh-equivalent) in 2023. Its source EUI of 89.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 638,203 kWh of electricity and 54,026 therms of natural gas for the year.

Which law requires Clock Tower Lofts Condominium Association to report its energy use?

Clock Tower Lofts 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:251314:2023). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.