The Ambassador Condominium Homeowners Association

How does The Ambassador Condominium Homeowners 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. The Ambassador Condominium Homeowners Association's ENERGY STAR score of 54 compares with an average of 62 across the 1,472 that report a score; it scores higher than 36% of them and lower than 64%. Its site EUI of 66.5 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 5.9 kgCO₂e/ft² is roughly in line with the group average of 5.8 kgCO₂e/ft².

At 148,466 sq ft, it is about 28% below the average floor area of 206,097 sq ft for those buildings. It was built in 2004, 33 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 Ambassador Condominium Homeowners Association's energy performance changed over time?

BuildingCensus holds 8 Chicago disclosures for The Ambassador Condominium Homeowners Association, covering report years 2016–2023. Its ENERGY STAR score went from 33 in 2016 to 54 in 2023 (+21 points); its best year on file was 2021, at 62. Site EUI moved from 79.3 kBtu/ft² (2016) to 66.5 kBtu/ft² (2023), a 16% decrease. Reported emissions went from 1,269 tCO₂e to 876 tCO₂e over the same span (down 31%).

What does an ENERGY STAR score of 54 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 54 means the building performs better than about 54% of its national peers. BuildingCensus bands the score into report-card grades; 54 falls in band D — lowest band (1–54). It sits 21 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 Ambassador Condominium Homeowners Association's 66.5 kBtu/ft² across 148,466 sq ft works out to about 9.9 billion Btu (2,893 MWh-equivalent) in 2023. Its source EUI of 117.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,188,885 kWh of electricity and 58,127 therms of natural gas for the year.

Which law requires The Ambassador Condominium Homeowners Association to report its energy use?

The Ambassador Condominium Homeowners 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:174206:2023). Covered buildings that fail to benchmark and report face fines of up to $100 plus $25 per day of violation under the ordinance.